Abbreviation Full Form3D Three Dimensional (Lat, Long, Alt)4D Four Dimensional (Lat, Long, Alt, Time)

A AmberA AirA AlternateA AreaA/BRK AutobrakeA/C AircraftA/COLL Anti-CollisionA/D Analog/DigitalA/DC Analog-to-Digital ConverterA/F Auto FlightA/G Air to GroundA/L AirlineA/N AlphanumericA/N SIZE Alpha Numeric SizeA/R Audio ReproducerA/S AirspeedA/S Auto StabilizationA/SKID Anti-SkidA/STAB Auto StabilizerA/T Adjustment/TestA/THR AutothrustA/XFMR AutotransformerA.ICE Anti-iceA.ICE Anti-icingA2P Assurance, Prevention, ProtectionAA Airworthiness AuthoritiesAA Arithmetical AverageAAA Airworthiness Approval AttestationAAAH Airbus Approved Abbreviations HandbookAAC Airline Administrative CommunicationsAACD Aeronautical Administrative Communication

DomainAADC Analog Air Data ComputerAAL Above Aerodrome LevelAAM Airbus Acceptable MassAAMD Aeronautical Administrative Maintenance

DomainAAMG Airbus Application Management GroupAAP Additional Attendant PanelAAP Aft Attendant PanelAAR Air-to-Air RefuelingAAT Aircraft Allocation TableABBR AbbreviationABCD Airbus Collective Data DictionaryABCM Alternate Brake Control ManifoldABCU Alternate Braking Control UnitABD Airbus Directive and ProcedureABDC Avionics Broadcast Data Collector

Airbus Abbreviations Dictionary

ABEC Airbus (Beijing) Engineering Centre Company Limited

ABM APU Build-up ManualABM AbeamABN AbnormalABNORM AbnormalABPM Avionics Bare Processing ModuleABRN AirborneABS Autobrake SystemABS Airbus StandardABSELV Alternate Brake Selector Valve ABSORB AbsorberABS VAL Absolute ValueABTS Avionics Blowing Temperature SensorABV AboveAC Airplane Characteristics for Airport PlanningAC Alternating CurrentAC Advisory CircularACARS Aircraft Communication Addressing and

Reporting SystemACAS Airborne Collision Avoidance SystemACAU ARINC600 Connecting Assembly UnitACC Active Clearance ControlACC Area Control CenterACC Aircraft Configuration ControlACC Air vehicle Corrosion ControlACCEL Acceleration/AccelerateACCESS AccessoryACCLRM AccelerometerACCU AccumulatorACCUR AccuracyACD Additional Control DeviceACD Airframe Certification DocumentACD Airworthiness Certification DossierACD Aircraft Control DomainACDB Aircraft Component Data BaseACE Airbus Concurrent EngineeringACE Altimeter Control EquipmentACFT AircraftACFU Aircraft Check Follow UpACG Aircraft Center of GravityACGS Aircraft GSM ServerACI Avionics Communication InterfaceACIA Asynchronous Communications Interface

AdaptorACJ Advisory Circular-JointACK AcknowledgeACL Aircraft Configuration ListACLSP Aircraft Loadable Software PartACM Air Cycle MachineACM Abbreviated Component Maintenance ManualACM Aircraft Configuration MatrixACM Aircraft Conversion ManualACM Airspace Control MeansACMB Aircraft Configuration Management BoardACMM Abbreviated Component Maintenance Manual

ACMM Aircraft Configuration Meta ModelACMP Airframe Condition Monitoring ProcedureACMR Aircraft Configuration Management RulesACMS Aircraft Condition Monitoring SystemACMS-SA ACMS-Server ApplicationACMT Aircraft Component Management TeamACN Aircraft Classification NumberACO Airworthiness Certification OfficeACO Automatic Call OutACOB Automatic Call Out BoxACOC Air Cooled Oil CoolerACP Area Call PanelACP Audio Control PanelACP Altimeter Check PointACQ AcquireACQN AcquisitionACR Avionics Communication RouterACRIF ACR Instrumentation FunctionACRS Aircraft Communication Router SystemACRT Additional Cross Reference TableACS AccessACS Alternating Current SupplyACS Air Conditioning SystemACSA Atelier du Calculateur en Structure

AéronautiqueACSC Air Conditioning System ControllerACT ActiveACT Additional Center TankACT ActivityACTD ActuatedACTG ActuatingACTIV ActiveACTN ActionACTR ActuatorACTVN ActivationACTVT ActivateACU Air Cooling UnitACU Antenna Coupler UnitACU Antenna Control UnitACUTE Airbus Cockpit Universal Thrust EmulatorACVR Alternating Current Voltage RatioACWP Actual Cost of Work PerformedAD AerodromeAD Airplane DatumAD Airworthiness DirectiveAD Aerial DeliveryA-D Airbus DeutschlandADAM Airbus Spares Distribution and Materials

SystemADAP As Designed As PlannedADAU Auxiliary Data Acquisition UnitADB Airport DataBaseADB Area Distribution BoxADB Aeronautical DataBaseADC Air Data ComputerADC Airbus Delivery Centre

ADCL Airworthiness Directives Compliance ListADCN Avionics Data Communication NetworkADCOMS Advanced Configuration Management System

ADCSIP Acceptance and Delivery Customer Satisfaction Improvement Programme

ADD AdditionADD AdditionalADD Aircraft Description Data BaseADD Aircraft Design DeclarationADD BY Added ByADF Automatic Direction FinderADG Air Driven GeneratorADGB Active Differential GearboxADI Attitude Director IndicatorADIRS Air Data/Inertial Reference SystemADIRU Air Data/Inertial Reference UnitADJ AdjustADJMT AdjustmentADL Airborne Data LoaderADL Aircraft Data LoaderADL Allowable Damage and LimitationsADL Applicable Documents ListADM Air Data ModuleADMZ Aircraft DeMilitarized ZoneADNS Airbus Document Numbering ServiceADO Airbus Documentation OfficeADOPT Airbus Design and Operational Philosophy in

TrainingADPM Aircraft Deactivation Procedures ManualADPTN AdaptationADPTR AdapterADR Air Data ReferenceADR Advisory RouteADRES Aircraft Documentation Retrieval SystemADRS AddressADS Air Data SystemADS Automatic Dependent SurveillanceADS Aerial Delivery SystemADS Airbus Document ServicesADS-B Automatic Dependent Surveillance-BroadcastADS-C Automatic Dependent Surveillance-ContractADSM Avionics Data Storage ModuleADU Area Distribution UnitADU Align Display UnitADV AdvisoryA-E Airbus EspanaAEB Airline Engineering BulletinAECI Airbus Engineering Center IndiaAECM Alternate Extension Control ModuleAECMA The European Association of Aerospace

IndustriesAEDS Axle Equipment Drive ShaftAEDS Airbus Enterprise Directory ServiceAEEC Airlines Electronic Engineering CommitteeAERO Aviation Routine Weather Report

AES Aircraft Earth StationAESS Aircraft Environment Surveillance SystemAESU Aircraft Environment Surveillance UnitAEU Audio Electronic UnitAEVC Avionics Equipment Ventilation ComputerAEX Access AuthorizedAF Audio FrequencyAF Acceptance FlightAF All FreighterAF DME Arc to Fixed WaypointA-F Airbus FranceAFB Antifriction BearingAFC Automatic Frequency ControlAFCS Automatic Flight Control SystemAFDX Avionics Full Duplex Switched EthernetAFECU Automatic Fire Extinguishing Control UnitAFFECTD AffectedAFFIRM AffirmativeAFI Air Vehicle Fault IsolationAFI Aircraft Fault IsolationAFIS Airline In Flight Information SystemAFL Auto FlushAFM Airplane Flight ManualAFMC Auxiliary Fuel Management ComputerAFMR AirframerAFN ATS Facilities NotificationAFP Advanced Fiber PlacementAFR AirframeAFR Aircraft Fault ReportingAFRP Aramid Fiber Reinforced PlasticAFRS AirFRamer ShellAFS Automatic Flight SystemAFSA Airbus France Standard ArchitectureAFTN Aeronautical Fixed Telecommunication

NetworkAFTR AfterAFU Artificial Feel UnitAGB Accessory GearboxAGB Angle GearboxAGC APU Generator ContactorAGC Automatic Gain ControlAGE Aircraft Ground EquipmentAGG Airbus General GuideAGL Above Ground LevelAGMT AugmentAGP Alternate Gauging ProcessorAGS Air Generation SystemAGT AgentAGU Air Generation UnitAGW Actual Gross WeightAHP Anti-Hijacking PanelAHRS Attitude and Heading Reference SystemAHRU Attitude and Heading Reference UnitAI Anti-IcingAIB Airbus IndustrieAIBU Advanced Illumination Ballast Unit

AIC Access Illustration CardsAIC Airbus Integrated CompanyAICC Aviation Industry CBT CommitteeA-ICE Anti-IceAICF Anti Ice Control FunctionAICS Anti Ice Control SystemAICU Anti Ice Control UnitAID Aircraft Installation DelayAIDA Airbus Industrie Drawing AccessAIDA Attestation Integrated Delta AggregationAIDS Aircraft Integrated Data SystemAIG Accident InvestigationAIL AileronAIM Aircraft Integrated MaintenanceAIM/CRM Airbus Integrated Management/Cockpit

Resource ManagementAIMDS Aircraft Integrated Monitoring and Diagnostic

SystemAIME Autonomous Integrity Monitored Extrapolation

AIM-FANS Airbus Interoperable Modular-Future Air Navigation Sys

AIMI Avionics Information Management InterfaceAIMS Airbus Improvement Management SystemAIMS Airbus Material SpecificationAIMS Airbus Inventory Management SystemAIN Airbus Integrated NetworkAINA Airbus North AmericaAINS Aircraft Information Network SystemAIP Attendant Indication PanelAIP Aeronautical Information PublicationAIPC Aircraft Illustrated Parts CatalogAIPI Airbus Process InstructionAIPS Airbus Process SpecificationAIQI Airbus Industrie Quality InstructionAIR Aircraft Inspection ReportAIRCOND Air ConditioningAIRMAN Aircraft Maintenance AnalysisAIS Audio Integrated SystemAIS Aeronautical Information ServiceAISD Airline Information Services DomainAISI American Iron and Steel InstituteAISS Aeronautical Information Systems SecurityAIT Accident Information TelexAITM Airbus Test MethodAIU Aircraft Interface UnitAKC Assembly Key CharacteristicAL AirlineALE Automatic Link EstablishmentALERFA Alert PhaseALF Aft Looking ForwardALHP Airframe Life-History ProgramALIGN AlignmentALIGND AlignedALLWD AllowedALNA Airline Network Architecture

ALPHA Angle-of-AttackALPHANUM AlphanumericalALPS Aircraft Lease Portfolio SecuritisationALS Approach Light SystemALS Airworthiness Limitation SectionALSCU Auxiliary Level Sensing Control UnitALT AltitudeALT ACQ Altitude AcquireALTM AltimeterALTN AlternateALTN AlternativeALT TO Alternate ToALTU Annunciator Light Test UnitALU Arithmetic and Logic UnitAM Amplitude ModulationAM Airbus Means and Methods DocumentAM Air vehicle MaintenanceAMAT Aircraft Multipurpose Access TerminalAMB AmbientAMC Acceptable Means of ComplianceAMD Aircraft Maintenance DescriptionAMDB Airport Mapping DataBaseAME Amplitude Modulation EquivalentAMEX Avionics Message ExchangerAMF Avionics Messaging ForwarderAMI Airline Modifiable InformationAMII Airlines Maintenance Inspection IntervalsAMISA Advanced Model-Integrated Specifications for

AirbusAMJ Advisory Material-JointAMM Aircraft Maintenance ManualAMM AmmeterAMP AmperageAMP AmpereAMP Avionics Maintainability PlanAMP Aircraft Maintenance ProcedureAMPL AmplifierAMS Air-ground Message ServerAMS Aeronautical Material SpecificationsAMS Aerospace Material SpecificationAMS Aircraft Modification StatusAMS Audio Management SystemAMTOSS Aircraft Maintenance Task Oriented Support

SystemAMU Audio Management UnitAN Air NavigationANCE AnnounceANCU Anti-Noise Control UnitAND Aircraft Nose DownANDT Air vehicle Non-Destructive TestingANDT Aircraft Non Destructive TestANF Airport Navigation FunctionANI Analog InputANLG AnalogicANN AnnunciatorANNCE Announce

ANNCMT AnnouncementANN LT Annunciator LightANO Analog OutputANPT Aeronautical National Taper Pipe ThreadsANS Anti-Noise SystemANSA At Nearest Suitable AirportANSI American National Standards InstituteANSU Aircraft Network Server UnitANT AntennaANU Aircraft Nose UpAO Access OpeningAOA Angle Of AttackAOAS Angle of Attack SensorAOC Airline Operational ControlAOC Air Operator's CertificateAOD Audio on DemandAOG Aircraft On GroundAOHX Air/Oil Heat ExchangerAOLS Airbus On-Line ServicesAOM Aircraft Operating ManualAOMT Airbus Onboard Maintenance ToolAOP Airbus Operational PlanAOPM Airbus Operational Process MapAOT All Operator TelexAP AutopilotAP Airborne PrinterAP Airbus Procedure AP/FD Autopilot/Flight DirectorAPASHE Aircraft Publication Automated Shipping

ExpediteAPC Area Positive ControlAPI Application Programming InterfaceAPLC Aircraft Power Line ConditionerAPM ARINC Processing ModuleAPM Aircraft Performance Monitoring ProgramAPM Airport Planning ManualAPP AppearanceAPP Approach Control-Approach Control OfficeAPPL ApplicationAPPR ApproachAPPROX ApproximatelyAPPU Asymmetry Position Pick Off UnitAPQ Airline Pre-QualificationAPS Avionics Printing ServiceAPS Absolute Pressure SensorAPS Aircraft Prepared for ServiceAPS Auxiliary Power SupplyAPS Auxiliary Power SystemAPU Auxiliary Power UnitAPU AFE APU Automatic Fire Extinguishing Control Unit

APUNRV APU Non Return ValveAQP Advanced Qualification ProgramAR As RequiredAR Audio ReproducerARC Air Refueling Computer

ARG Arresting Gear or HookARINC Aeronautical Radio IncorporatedARM Aircraft Recovery ManualARM Airworthiness Review MeetingARMD ArmedARMG ArmingARMT ArmamentARN Aircraft Registration NumberARND AroundARO After Receipt OrderARP Aerospace Recommended PracticeARP Aerodrome Reference Point - Airport

Reference PointARP Airbus Resource PlanningARPT AirportARR ArrivalARR ArrivingARS Airworthiness Review SheetART Active Repair TimeARTCC Air Route Traffic Control CentreARTCLD ArticulatedARTF ArtificialARU Aircraft Router UnitARU Audio Reproducer UnitARV Alternate Refill ValveAS AirscoopAS AirspeedASA All Speed AileronASA Audio and Sign AdapterASAP As soon as possibleASC APU Starter ContactorASCII American Standard Code for Information

InterchangeASCO Airbus Service Company Inc.ASCU Air Systems Control UnitASD Accelerate Stop DistanceASD Airborne Services DomainASD Air vehicle Schematic DiagramASD Aircraft Schematic DiagramASDC Airline Service Data CollectionASE Airborne Support EquipmentASE Airbus Supplied EquipmentASF Amperes per Square FootASF Avionics Server FunctionASFC Avionics Server Function CabinetASG Airbus Security GroupASI Airspeed IndicatorASIC Application Specific Integrated CircuitsASM Aircraft Schematics ManualASM American Society for MetalsASM Air Separation ModuleASMA Aircraft Systems Maintenance AidsASN Aerospatiale Norme (Standard)ASO Assembly Stage OperationASP Audio Selector PanelASPSU Autonomous Standby Power Supply Unit

ASR Airport Surveillance RadarASR Air vehicle Structure and RepairASR Aircraft Structural RepairASS Aircraft Security SystemASSCU Aircraft Security System Control UnitASSY AssemblyASU Attendant Service UnitASV Alternate Servo ValveASYM Asymmetric(al)AT AutothrustAT AutothrottleATA Actual Time of ArrivalATA Air Transport Association of AmericaATA Assembly Test ArticleATAM Airbus Takeoff Analysis ModuleATB ATA 100 BreakdownATC Air Traffic ControlATC Airbus Training CenterATCA Air Traffic Control BoardATCDB Aircraft Technical Characteristics Data BaseATCH Attach(ment)ATCI Air Traffic Control and InformationATCK AttackATCRB Air Traffic Control Radar BeaconATCSS Air Traffic Control Data Link Signalling System

ATD Actual Time of DepartureATD Aircraft Technical DefinitionATE Automatic Test EquipmentATEC Automatic Test Equipment ComplexATI Air Transport IndicatorATIMS Air Traffic and Information Management

SystemATIS Automatic Terminal Information ServiceATL Applicable Tool ListATL Automatic Tape LayingATLAS Abbreviated Test Language for Avionics

SystemsATLAS Abbreviated Test Language for All SystemsATM Air Traffic ManagementATM Aircraft Transportability ManualATM Available Ton-MileATMG Airbus Technical Management GroupATMS Advanced Text Management SystemATN Aeronautical Telecommunications NetworkATO Authorization to OfferATQC Airbus Temporary Quick ChangeATR Austin Trumbull RadioATRCCS Automatic Turbine Rotor Clearance Control

SystemATS Air Traffic ServiceATS Autothrottle SystemATS Airbus Technical SpecificationATS Autothrust SystemATS Air Turbine StarterATSAW Airborne Traffic Situational Awareness

ATSCD Air Traffic System Communications Domain (ATSCD)

ATSU Air Traffic Service UnitATT AttitudeATT Attitude ReferenceATTEN AttenuationATTND AttendantATU AutoTransformer UnitATUC ATU ContactorATULC ATU Line ContactorATUPU ATU Protection UnitATZ Aerodrome Traffic ZoneAUD AudioAUDSWTGSYS Audio Switching SystemAUDSWTGUNIT Audio Switching UnitA-UK Airbus UKAUTH AuthorizeAUTO AutomaticAUTOCAL AutocalibrationAUTOLAND Automatic LandingAUW All-Up WeightAUX AuxiliaryAVAIL AvailabilityAVAIL AvailableA-VaRTM Advanced Vacuum-assisted Resin Transfer

MouldingAVG Asset Value GuaranteeAVG AverageAVIONICS Aviation ElectronicsAVIS Aircraft Virtual Insider SystemAVM Avionics Video ModuleAVNCS AvionicsAVOD Audio/Video on DemandAVRS Audio/Video Recording SystemAVS Avionics Ventilation SystemAVV Air Vent ValveAWACS Advanced Warning (on) Aircraft Commercial

SalesAWB Air WaybillAWD Air vehicle Wiring DiagramAWD Aircraft Wiring DiagramAWG American Wire GageAWG Audible Warning GeneratorAWL Aircraft Wiring ListAWLS All Weather Landing SystemAWM Aircraft Wiring ManualAWS American Welding SocietyAWS Airworthiness SecurityAWY AirwayAX Longitudinal AccelerationAX Access AuthorizedAY Lateral AccelerationAZ AzimuthAZ Vertical AccelerationAZFW Actual Zero Fuel WeightAZIM Azimuth

B BlueB/B Back-BeamB/C Business ClassB/D Bottom of DescentBAABI Basic Approved ATA Breakdown IndexBAC Battery to APU ContactorBACS Brake and Antiskid Control SystemBAF BITE Access FunctionBAF BaffleBAFO Best and Final OfferBAG Bandwidth Allocation GapBAL Basic Assembly LanguageBALDS Bleed Air Leakage Detection SystemBARC Barometric Altitude Rate ComputerBARO BarometricBAS Bleed Air SystemBAT Battery (Electrical)BATC Battery ContactorBATLC Battery Line ContactorBBAND BroadbandBBRG Ball BearingBC Baggage Container TrainBCC Bleed Control ComputerBCD Binary Coded DecimalBCD Bulk Cargo DoorBCDS BITE Centralized Data SystemBCF Brake Cooling FanBCL Battery Charge LimiterBCM Backup Control ModuleBCN BeaconBCP Business Continuity PlanBCRC Bulk Crew Rest CompartmentBCRU Battery Charge and Rectifier UnitBCS Brake Control SystemBCU Brake Control UnitBCV Bleed Control ValveBCWP Budgeted Cost of Work PerformedBCWS Budgeted Cost of Work ScheduledBDD BITE Description DocumentBDIE Base de Données Installation ElectriqueBDLI Bundesverband der Deutschen Luft-und

Raumfahrt IndustrieBDPC Bracketing Design Principles CatalogBDSG BundesDatenSchutzGesetz (Federal Data

Protection Act in Germany)BEA Bureau d'Enquête AccidentBEL CRK BellcrankBER Beyond Economical RepairBETW BetweenBEV BevelBEW Basic Empty WeightBFD Bi-Folding DoorBFDAS Basic Flight Data Acquisition SystemBFE Buyer Furnished EquipmentBFEMS BFE Management SystemBFO Beat Frequency Oscillator

BFR BufferBG Build Group (Assembly Group)BGC Build Group ComponentBGM Boarding MusicBGS Build Group Stack-UpBH Block HoursBHD BulkheadBIP Best Industry PracticeBIST Built-in Self TestBITE Built-In Test EquipmentBIU BITE Interface UnitBK BlackBKFLW BackflowBKUP BackupBL BleedBLC Basic Lines CatalogBLC BCRU Line ContactorBLES Brake Life Extension SystemBLG Body Landing GearBLK BlackBLK BlockBLKT BlanketBLMPS Bleed Manifold Pressure SensorBLOW BlowerBLRPS Bleed Regulated Pressure SensorBLST BallastBLT BoltBLV Bleed ValveBLW BelowBLWG BlowingBLWR BlowerBM BeamBM BeanstandungsmeldungBMC Bleed Monitoring ComputerBMI BITE Monitoring InterfaceBMS Bulletin Météo SpécialBMSELV Body Mounted Selector ValveBND BondedBNDG BondingBNDRY BoundaryBNR BinaryBNR Binary WordsBO Blocking OscillatorBO Body OdourBOH Brake-Off WeightBOH Bauunterlagen-Organisations-HandbuchBOM Bill of MaterialBOMU Bleed and Overheat Monitoring UnitBOOM Business Oriented Object ModelBOT Begin of TapeBOT BottomBP Bottom PlugBPPU Back-up Position Pick-Off UnitBPR By-Pass RatioBPRSOV Bleed Pressure Regulating Shut-off ValveBPS Backup Power Supply

BPTU Brake Pedal Transmitter UnitBR BrownBRC BraceBRD BraidBRD Business Requirements DossierBRDG BridgeBRG BearingBRIDGE BITE Referential and Information for

Dataloading Generic ExtractsBRK BrakeBRKNG BrakingBRKR BreakerBRKS BrakesBRKT BracketBRT BrightBRT BrightnessBSCS Braking and Steering Control SystemBSCU Braking and Steering Control UnitBSHG BushingBST Bracket Selection ToolBSU Beam Steering UnitBSV Body Shuttle ValveBT Bus TieBTA Bogie Trim ActuatorBTAC Bus Tie Alternating ContactorBTAC Bus Tie AC ContactorBTC Bus Tie ContactorBTCC Bus Tie Continuous ContactorBTCM Brake Temperature Compensation ModuleBTDC Bus Tie DC ContactorBTL BottleBTMS Brake Temperature Monitoring SystemBTMU Brake Temperature Monitoring UnitBTN ButtonBtoP Built to PrintBTR Bus Tie RelayBTS Base Transceiver StationBTS Brake Temperature SensorBTU British Thermal UnitBTV Brake to VacateBU Battery UnitBUS BusbarBUSS Back-Up Speed ScaleBVID Barely Visible Impact DamageBWS Body Wheel SteeringBWV Bypass Water ValveBYDU Back-Up Yaw Damper UnitBYP Bypassc Equal MarginC CelsiusC CentigradeC CloseC CyanC ClearC Cold (Electric Point)C Comparator

C ConvertibleC/A Cabin AttendantC/B Circuit BreakerC/L ChecklistC/M Command/MonitorC/M Crew MemberC/O Change OverC/S Call SignC/SSR Cost/Schedule Status ReportCA Cable AssemblyCA CableCA Constituent AssemblyCA Certification AuthorityCA/CRL Certification Authority/Certificate Revocation

ListCAA Central Aviation ArchiveCAA Civil Aviation AuthorityCAATS Computer Assisted Aircraft Trouble ShootingCAB CabinCAB PRESS Cabin PressurizationCAD Computer Aided DesignCADB Components for Attestation Data BaseCADETS Computer Assisted Documentation Education

Tutorial SystemCaDoc Cabin Documentation DisplayCAG Circulation Aérienne GénéraleCAGE Commercial And Government EntityCAI Combustion Area InspectionCAIR Constituent Assembly Inspection ReportCAL CalibrationCAL CalibratedCALC Cargo Acceptance and Load ControlCAM Cabin Assignment ModuleCAM Computer Aided ManufacturingCAM Customer Acceptance ManualCAM Crew Administration ManualCAMO Continuing Airworthiness Management

OrganisationCAN Controller Area NetworkCAN CanopyCANC CancellationCANC CancelCANCD CancelledCANTIL CantileverCAO Cargo Aircraft OnlyCAOA Corrected Angle Of AttackCAOM Cabin Attendant Operating ManualCAP CapacitorCAPLTY CapabilityCAPS Cabin Altitude Pressure SensorCAPT CaptainCAR CargoCAR Civil Aviation RequirementsCARE Common Airbus Requirements EngineeringCARE Continuing Airframe - Health Review and

Evaluation

CARP CarpetCARP Computed Air Release PointCAS Calibrated Air SpeedCAS Calculated Air SpeedCAS Collision Avoidance SystemCAS Computed Air SpeedCAS Cabin Attendant SeatCAT CategoryCAT Clear Air TurbulenceCATCH Complex Anomaly Tracking and SearchCAUT CautionCAX Compartment Air ExtractionCBAL CounterbalanceCBB Connexion By BoeingCBIT Continuous BITECBM Circuit Breaker Monitoring CBMF Circuit Breaker Monitoring FunctionCBMS Circuit Breaker Monitoring SystemCBMU Circuit Breaker Monitoring UnitCBO Cycles between OverhaulCBORE CounterboreCBP Circuit Breaker PanelCBR California Bearing RatioCBS Cost Breakdown StructureCBSV Cycles Between Scheduled VisitsCC Current ComparatorCC Configuration ComponentCC Cabin CrewCCB Configuration Control BoardCCB Change Control BoardCCB Compartment Control BoxCCC Crash Crew ChartCCC Component Change CardCCC Configuration Control CommitteeCCC Cabin and Cargo CustomizationCCCP Compressor Cavity Control PressureCCD Cursor Control DeviceCCD Configuration Control DocumentCCG Cabin Configuration GuideCCITT Consultative Committee International

Telegraphy & TelephCCM Configuration Control ManagementCCMail Cabin Crew MailingCCMD Configuration Conformity Management and

DocumentationCCMR Candidate Certification Maintenance

RequirementsCCMU Centralized Cryptographic Management UnitCCOM Cabin Crew Operating ManualCCQ Cross Crew QualificationCCR Credit Card ReaderCCR Customer Change RegisterCCR Cluster Component ResponsibleCCRC Cabin Crew Rest CompartmentCCRM Cabin Crew Rest ModuleCCS Cabin Communication System

CCU CSAS Control UnitCCW Counter ClockwiseCD Compact DiskCD Control DisplayCD Cold DrawnCD Count DragCD Cargo DoorCD Case DrainCDA Cargo Door ActuatorCDAM Centralized Data Acquisition ModuleCDAS Cargo Door Actuation SystemCDAU Centralized Data Acquisition UnitCDB Configuration DataBaseCDBT Component Design and Build TeamCDC Cargo Door ControllerCDDS Component Documentation Data SystemCDE Consumption Data Exchange CardCDF Contractual Definition FreezeCDF1 Customer Definition FreezeCDF2/3 Customer Definition FreezeCDF4 Customer Definition FreezeCDIM Component Data Instruction ManualCDIS Customization and Delivery Information

ServicesCDL Configuration Deviation ListCDLCU Cockpit Door Locking Control UnitCDLS Cockpit Door Locking SystemCDM Cockpit Door ModuleCDM Coolant Distribution ModuleCDP Compressor Discharge PressureCDR Critical Design ReviewCD-ROM Compact Disc - Read Only MemoryCDS Component Documentation StatusCDS Control and Display SystemCDS Cold Drawn SteelCDSS Cockpit Door Surveillance SystemCDSU Cockpit Door Surveillance UnitCDT Cabin Door TrainerCDU Center Drive UnitCDU Control and Display UnitCD-WD Component Data Working DocumentCE Central EntityCE Change EventCE Centralized EquipmentCECAM Centralized Cabin MonitoringCED Cooling Effect DetectorCEET Cabin Emergency Evacuation TrainerCEL Component Evolution ListCELLI Ceiling Emergency LED LightCEO Chief Executive OfficerCEPT Council of European Posts and TelegraphsCER Contrôle Essais et RéceptionCEV Centre d'Essais en VolCEV Clutch Electro ValveCEV Commercial Equipment VentilationCF Course to a Fixed Waypoint

CF Configuration FileCFDIU Centralized Fault Display Interface UnitCFDS Centralized Fault Display SystemCFE Customer Furnished EquipmentCFFC Cockpit Fixed Frequency ConverterCFI Clearance for InstallationCFIT Controlled Flight Into TerrainCFM Cable Fabrication ManualCFM Cubic Feet per MinuteCFMI CFM InternationalCFP Computerized Flight PlanCFR Code of Federal RegulationsCFR Current Flight ReportCFRP Carbon Fiber Reinforced PlasticCFS Cabin File ServerCFS Cold Finished SteelCFT Call For TenderCFVCU Cargo Fire Verification Control UnitCFVS Cargo Fire Verification SystemCG Center of GravityCGC Customer Ground CheckCGCS Center of Gravity Control SystemCGIB Control and Guidance Integration BenchCGM Computer Graphics MetafileCH CharacterCH Center HatrackCH ChargeCHAM ChamferCHAN ChannelCHAS ChassisCHG ChangeCHIFS Configuration Handling and Industrialization of

Field loadable SoftwareCHK CheckCHM ChimeCHMBR ChamberCHRG ChargeCHRO ChronometerCHT Cargo Hold TankCI Cost IndexCI Cast ironCI Configuration ItemCI Conversion InstructionCI Course to an InterceptCICS Customer Information Control SystemCICS/VS Customer Information Control System/Virtual

StorageCIDS Cabin Intercommunication Data SystemCIM Continuous Image MicrofilmCIMS Communications and Identification

Management SystemCIN Change Identification NumberCINS Cabin Information Network SystemCIP Continuous Improvement PlanCIR Common Information Repository

CIRCE Conception Informatisée et Rationalisée des Câblages Electriques

CIT Compressor Inlet TemperatureCIU Camera Interface UnitCK CheckCKD CheckedCKPT CockpitCKT CircuitCL Center LineCL ChecklistCL ClimbCL ClipCL ClutchCL Circuit LetterCL/OP Closure/OpeningCLB ClimbCLCTR CollectorCLD ClosedCLDB Component Location Data BankCLEDU Cabin LED UnitCLG Centerline Landing GearCLG CeilingCLK ClockCLM Component Location ManualCLM Cargo Load ManagementCLN ClinometerCLNG CeilingCLOG CloggingCLOGD CloggedCLP ClampCLPR ClapperCLR ClearCLR ALT Clearance AltitudeCLRD ClearedCLRNC ClearanceCLS Cargo Loading SystemCLS Cargo Loading System ManualCLSD ClosedCLSG ClosingCLTM Component Location Training ManualCLV ClevisCM Conversion ManualCM Conversion ModuleCM Call MaintenanceCM CentimetersCM Collective ModificationCM Configuration ManagementCM Crew MemberCMA Common Mode AnalysisCMC Central Maintenance ComputerCMD CommandCME Configuration Management EnablerCMEU Cabin Passenger Management Memory

Expansion UnitCMF Central Maintenance FunctionCMFLR Cam Follower

CMI Computer Managed InstructionCMI Customer Modifiable InformationCMIT Component Management and Integration

TeamCML Consumable Material ListCMM Calibration Memory ModuleCMM Component Maintenance ManualCMMM Component Maintenance Manual Manufacturer

CMMV Component Maintenance Manual VendorCMOS Complementary Metal Oxide SiliconC-MOS Complementary Metal Oxyde SemiconductorCMP Customer Maintenance ProgramCMPLRY ComplementaryCMPLTD CompletedCMPNT ComponentCMPS CPLR Compass CouplerCMPTG ComputingCMPTR ComputerCMR Certification Maintenance RequirementsCMRLR Cam RollerCMS Central Maintenance SystemCMS Code Matière SociétéCMS Component Maintenance SheetCMS Cabin Management SystemCMT Cabin Management TerminalCMT Customization Management ToolCMV Concentrator and Multiplexer for VideoCNA Common Nozzle AssemblyCNCT ConnectCNCTD ConnectedCNCTN ConnectionCNCTR ConnectorCNCTRC ConcentricCNCV ConcaveCND ConduitCNI Communication, Navigation & IdentificationCNSU Cabin Network Server UnitCNTNR ContainerCNTOR ContactorCNTR CounterCNTRTR ConcentratorCNU Cabin Network UnitCO CompanyCO Cut-OffCO Carbon MonoxideCO2 Carbon DioxideCOAS Cabin Operations Applications SystemCOAX CoaxialCoC Centre of CompetenceCOC Cabin Operation CenterCOC Customer Originated ChangeCOCT Cabin Operations Consultation ToolCOD/BOD Chemical Oxygen Demand/Biological Oxygen

DemandCODD Contractual On Dock Date

CoE Center of ExcellenceC of A Certificate of AirworthinessCOHO Coherent OscillatorCOL ColumnCOLLI COntour LED LIghtCOM CommunicationCOM CommandCOM CommonCOM Company Organization ManualCoMa Configuration ManagerCombL Combustible LiquidCOMC CSAS Overheat Monitoring ControllerCOMDL Coding ModuleCOML CommercialCOMO Coordination MemoCOMP CompassCOMP CompensatorCOMPSN CompensationCOMPT CompartmentCOMPTR ComparatorCOMSEC Communication SecurityCOMTN CommutationCONC ConcentratorCOND ConditionCOND ConditionedCOND ConditioningCONDTN ConditionCONDTR ConditionerCONFIG ConfigurationCONFIRMD ConfirmedCONSUMPT ConsumptionCONT ContinueCONT ContinuousCONT ControllerCONT ContourCONV ConverterCOO Chief Operating OfficerCOOL CoolerCOOL CoolingCOOLG CoolingCOOLR CoolerCOORD CoordinationCOORD CoordinateCOPI CopilotCor.M Corrosive MaterialCORA Customer Order AdministrationCORCTD CorrectedCORR CorrectCORR CorrugateCORR CorrugationCO RTE Company RouteCOS Cowl Opening SystemCOS CosineCOT CotterCOTS Commercial Off-The-ShelfCOUNT Counter

COV CoverCOWL CowlingCP Clock PulseCP Contributor PackageCP Control PanelCp, Cpk Capability indexesCPC Cabin Pressure ControllerCPCP Corrosion Prevention and Control programCPCS Cabin Pressure Control SystemCPCS Cargo Pressure Control SystemCPCU Cabin Pressure Control UnitCPD Continuing Product DevelopmentCPD Cabin Pressure DetectorCPDLC Controller-Pilot DataLink CommunicationCPF Central Programme FunctionCPIF Control Power Intermediate FrequencyCPIOM Core Processing Input/Output ModuleCPL CoupleCPLD CoupledCPLG CouplingCPLR CouplerCPM Critical Path MethodCPMS Cabin and Passenger Management SystemCPMU Cabin Passenger Management UnitCPNY CompanyCPRSR CompressorCPT CaptureCPT CompartmentCPT Cure Ply ThicknessCPU Central Processing UnitCQ Customer QueryCR Cold RolledCR CruiseCR Change RequestCRC Centralized Radio ControlCRC Continuous Repetitive ChimeCRC Cyclic Redundancy CheckCRC Camera Ready CopyCRC Crew Rest CompartmentCRC Cyclic Redundancy CodeCRDC Common Remote Data ConcentratorCRE Corrosion-ResistantCRES Corrosion-Resistant SteelCRG CargoCRI Certification Review ItemCRK CrankCRL CollarCRL Certificate Revocation ListCRM Communication Router ModuleCROSS Center for Reliable Operational System

SecurityCROSSFEEDR CrossfeederCRPA Controlled Radiation Pattern AntennaCRPA Controlled Radiation Pattern AntennaCRPAU Controlled Reception Pattern Antenna Unit CRQ Customer Request

CRR Component Reliability ReportCRS CourseCRS Cold Rolled SteelCRS Cost Repercussion SheetCRS Certificate of Release to ServiceCRSN CorrosionCRT Cathode Ray TubeCRU Cabin Router UnitCRU Card Reader UnitCRU Central Refrigeration UnitCR VI Hexavalent ChromiumCRZ CruiseCS Center SparCS Cabin Cleaners StepsCS Call SwitchCS Certification SpecificationCSA Common Standard AircraftCSAS Cooled Service Air SystemCSAS Conditioned Service Air SystemCSBS Controllable Sunlight Blocking SystemCSBSU Controllable Sunlight Blocking System UnitCSC Configured Spare ComponentCSD Constant Speed DriveCSDD Common Support Data DictonaryCSDM Concession Support Decision ManualCSE Course Set ErrorCSF/L Continuous Safe Flight/LandingCSI Cycles Since InstallationCSIP Customer Satisfaction Improvement

ProgrammeCSK CountersinkCSKH Countersunk HeadCSL ConsoleCSM Computer Software ManualCSM Commodity Sourcing ManagerCSM/G Constant Speed Motor/GeneratorCSN Catalog Sequence NumberCSPM Customer Support Procedure ManualCSS Cockpit System SimulatorCSS Certification Status SummaryCST Cabin Service TrainerCSTG CastingCSTR ConstraintCSU Command Sensor UnitCSV Cycles Since Last Shop VisitCT Current TransformerCT Center TapeCTA Control AreaCTDP Cabin Trainer Data PackagesCTF Central Test FacilitiesCTF.P Central Test Facility ResponseCTF.Q Central Test Facility QuestionsCTK Center TankCTL CentralCTL ControlCTL Customer Team Leader

CTLR ControllerCTR CenterCTR ContourCTR Control ZoneCTRD CenteredCTS Customized Technical SpecificationCTS Cabin Temperature SensorCTSK CountersunkCTU Cabin Telecommunications UnitCTWT CounterweightCU Control UnitCUDU Current Unbalance Detection UnitCUP Customer PackageCUR CurrentCV Curriculum VitaeCVE Compliance Verification EngineerCVL Control Value ListCVL Configuration Variation ListCVM Cabin Video MonitoringCVMS Cabin Video Monitoring SystemCVR Cockpit Voice RecorderCVRS Cockpit Voice Recorder SystemCVS Cargo Video SurveillanceCVT Center Vent TubeCVU Crypto Voice UnitCW ClockwiseCW Continuous WaveCWG Cockpit Working GroupCWLU Cabin Wireless LAN UnitCWS Cabin Work StationCWS Control Wheel SteeringCWS Cargo Winch SystemCWSIU Combined Wheel Speed Interface UnitCWY ClearwayCY CycleCY Calendar Year - Current YearCYL CylinderD/A Digital to AnalogD/D Engine Out Drift Down PointD/LNA Diplexer/Low Noise AmplifierD/O Description and OperationD&B Design and BuildDA Drift AngleDABS Discrete Address Beacon SystemDAC Digital to Analog ConverterDAC Drawing Aperture CardDAC Double Annular CombustorDAC Defensive Aids ComputerDACAS Data Centric Authoring SystemDADC Digital Air Data ComputerDADS Digital Air Data SystemDAE Designated Airworthiness EngineerDAF Damping Augmentation FunctionDAGM Dry Air Generation ModuleDAGS Dry Air Generation SystemDAL Development Assurance Level

DAMP DampingDAMPG DampingDAORD Detailed Airline Operations Requirement

DocumentDAR Digital ACMS RecorderDAR Digital AIDS RecorderDARE Development And Ramp-up ExcellenceDAS/STC Designated Alteration Station/Supplemental

Type CertificDASS Defensive Aids Sub-SystemD-ATIS Digital Automatic Terminal Information System

DAU Data Acquisition UnitDB DatabaseDB Data BaseDBAI Design and Build Aircraft ImprovementDBBS Data Base Bulletin ServiceDBC Data Bus CommunicationDBCR DataBase Change RequestDBD Data Basis for DesignDBD Data Basis for DesignDBLR DoublerDBPS Display Based Passenger SignDC Direct CurrentDC Direct CostDC Domain CoordinatorDCD Data Control and DisplayDCD DecodeDCD Double Channel DuplexDCDR DecoderDCDU Datalink Control and Display UnitDCI Design Change InstructionDCL Digital Cabin LogbookDCL-CCT Digital Cabin Logbook - Cabin Configuration

ToolDCMS Doors Control and Monitoring SystemDCMU Doors Control and Monitoring UnitDCP Display Control PanelDCR Dock on Crew RestDCR Delivery Control RoomDCR Design Change RequestDCRC Dock on Crew Rest CompartmentDCS Designated Certification SpecialistDCS Direct Current SupplyDCS Double Channel SimplexDCU Direction Control UnitDCV Directional Control ValveDCVR Direct Current Voltage RatioDD Definition DossierDD Dependence DiagramDDA Digital Differential AccumulationDDC Discrete Data ConcentratorDDC Definition Dossier CheckDDCU Dedicated Display and Control UnitDDI Design Drawing InstructionDDI Documentary Data Insert

DDM Digital Data ModuleDDM Difference in Depth of ModulationDDP Declaration of Design and PerformanceDDRMI Digital Distance and Radio Magnetic Indicator

DDS Domain Display SwitchDDS Design Data SetDDTS Digital Data Technology StandardsDDU Decoy Dispenser UnitDDV Direct Drive ValveDEC DeclinationDECEL DecelerateDECOMPRESS DecompressionDECR DecreaseDEDP Data Entry and Display PanelDEF DefinitionDEFDARS Digital Expandable Flt Data Acquisition &

Recording SysDEFL DeflectDEFOG DefoggingDEFRD DeferredDEFTHR DefeatherDEFUEL DefuelingDEG DegreeDEG Direct Entry GraduateDEGRADD DegradedDEL DeleteDEL Delay MessageDEL BY Deleted byDELTA P Differential PressureDEM Digital Electronic ModuleDEMOD DemodulatorDEP DepartureDEP Data Entry PanelDEPLD DeployedDEPRESS DepressurizationDEPT DepartmentDES DescendDES DescentDES Digital Equipment SimulatorDEST DestinationDET DetectionDET DetectorDETECTD DetectedDETNG DeterminingDEU Decoder/Encoder UnitDEV DeviationDEVN DeviationDEW Delivery Empty WeightDEX Access DemandedDF Direction FinderDFA Delayed Flaps ApproachDFDAMU Digital Flight Data Acquisition and

Management UnitDFDAU Digital Flight Data Acquisition UnitDFDR Digital Flight Data Recorder

DFDRS Digital Flight Data Recording SystemDFIDU Dual Function Interactive Display UnitDFPPU Differential Feedback Position Pick-Off UnitDFPRM Duct and Fuel Pipe Repair ManualDFT DriftDG Directional GyroDG Dark GreenDGAC Direction Generale de l'Aviation CivileDGI Digital InputDGMDB Digital Ground Map DataBase DGMDBM Digital Ground Map DataBase removable

MediaDGO Digital OutputDGPS Digital Global Positioning SystemDGTL DigitalDH Decision HeightDI Data InputDI DeicingDIA DiameterDIAPH DiaphragmDIBU Door Illumination Ballast UnitDIFF DifferentialDIM Direction Input ModuleDIM DimensionDIM DimmingDIMM DimmableDIP Dual In-line PackageDIP Door Indication PanelDIPLXR DiplexerDIR DirectDIR DirectionDIR DirectorDIRCM Direct Infra Red Counter MeasuresDIR TO Direct toDISC DisconnectDISC DisconnectedDISC DisconnectionDISCH DischargeDISCH DischargedDISCNTY DiscontinuityDISCTN DisconnectionDIS-IN Discrete InputDISRMD DisarmedDIST DistanceDISTR DistributeDISTR DistributionDISTR DistributorDITCH DitchingDITS Digital Information Transfer SystemDIU Digital Interface UnitDIVERTG DivertingDL Domain LeaderDL Data LoaderDLC Direct Lift ControlDLCM Data Loading Configuration ManagerDLCS Data Loading and Configuration System

DLK Data LinkDLOAD Data LoadingDLRB Data Loading Routing BoxDLS Data Loading SelectorDLS Data Load SystemDLW Data Loading WorkshopDLY DelayDMA Direct Memory AccessDMAP Digital MapDMC Display Management ComputerDMC Design Modification CommitteeDMC Direct Maintenance CostDMD DemandDMD Demand Data SheetDMDLTR DemodulatorDME Distance Measuring EquipmentDMGC Digital Map Generation ComputerDMGS Digital Map Generation SystemDMM Data Memory ModuleDMP Display Management ProcessorDMPR DamperDMR Design Material ReferencesDMS Document Management SystemDMU Data Management UnitDMU Digital Mock-UpDMZ DeMilitarized Zone DN DownDNA Design New AircraftDnCC Develop new Cabin and CargoDNI Drawing Numerical IndexDNLK DownlockDNLNK DownlinkDO Data OutputDO Design OfficeDOA Design Organisation ApprovalDOC Direct Operating CostDOC.DATA Documentary DataDOHS Door Operation Handle SwitchDOLLI Dome LED LightDOM Design Organisation ManualDOM Document Object ModelDOORLI Door LightDOORS Dynamic Object Orientated Requirements

SystemDOR Design Office ResponsibleDOW Dry Operating WeightDP Data ProcessingDP Differential ProtectionDPCU Digital Passenger Control UnitDPDT Double Pole/Double ThrowDPI Differential Pressure IndicatorDPM Design Progress MeetingDPRM Delivery Planning Review MeetingDQN Design Query NoteDR Dead ReckoningDR Door

DR Dispatch ReliabilityDR Drill / Drilling / DrillsDRAS Door and Ramp Actuation SystemDRIP Design Response Intended for PlaybackDRL Documentation Requirement ListDRM Duct Repair ManualDRMI Distance Radio Magnetic IndicatorDRN Drawn byDRUD Data Recording, Up & DownloadingDRVG DrivingDRVN DrivenDRVR DriverDS DownstreamDS Design SolutionDS Design SolutionDS/C Digital Server/ControllerDSAPP DisappearanceDSB Door Sensor BlockDSC Digital Signature CheckerDSCRM DiscriminatorDSCRT DiscreteDSCS Door and Escape Slide Control SystemDSCS Door and Slide Control SystemDSDL Dedicated Serial Data LinkDSEB Digital Seat Electronic BoxDSENGD DisengagedDSG Design Service GoalDSI Discrete InputDSIP Door/Slide Indication PanelDSMCU Doors and Slides Management Control UnitDSMS Doors and Slides Management SystemDSO Discrete OutputDSPL DisplayDSPLYD DisplayedDSSS Direct Sequence Spread SpectrumDSTRK Desired TrackDSUG Drawing Set User GuideDTD Document Type DefinitionDTD Data Transfer DeviceDTG Distance to GoDTM Data Transfer MediumDTMF Dual Tone Multiple FrequencyDTMS Damage Tolerance Monitoring SystemDTMU Damage Tolerance Monitoring UnitDTO Derated Take OffDTR Design Task ResponsibleDTS Duct Temperature SensorDU Display UnitD-ULPA Double Ultra Low Particulate AirDUM DummyDVD Digital Versatile DiskDVD Digital Video DiskDVI Digital Visual InterfaceDVR Digital Video RecorderDWC Drip Water CollectorDWG Drawing

DWL Dowel / Doweling / To DowelDX Access DemandedDYNMTC DynamometricE EastE/T Electrical TrimEA Environmental AspectEABDC Enhanced Aircraft Broadcast Data CollectorEADI Electronic Attitude Director IndicatorEADS European Aeronautic Defence and Space

CompanyEAFR Enhanced Airborne Flight RecorderEAI Engine Anti-IcingEAIV Engine Anti-Icing ValveEALP Entrance Area Lighting PanelEAMU Emergency Audio Management UnitEAPAS Enhanced Airworthiness Program for

Aeroplane SystemsEAROM Electrically Alterable Read Only MemoryEAS Equivalent AirspeedEASA European Aviation Safety AgencyEAT Expected Approach TimeEAT Estimate At CompletionEATULC Emergency ATU Line ContactorEBAS Engine Bleed Air SystemEBATC Emergency Battery ContactorEBCU Emergency Brake Control UnitEBHA Electrical Backup Hydraulic ActuatorEBIT Earnings Before Interest and TaxesEBITDA Earnings Before Interest, Tax, Depreciation

and AmortisationEBITDAR Earnings Before Interest, Taxes, Depreciation,

Amortization and RentEBS Engine Build SpecificationEBTAC Emergency Bus Tie AC ContactorEBTC Emergency Bus Tie ContactorEBTDC Emergency Bus Tie DC ContactorEBU Engine Build-up UnitEC Engine ControlEC Entertainment ControllerECAM Electronic Centralized Aircraft MonitoringECAM TC ECAM Temporary ChangeECAS Emergency Cabin Alerting SystemECB Electronic Control BoxECDB Equipment Central Data BankECLS Electrical Cargo Loading systemECM Engine Condition MonitoringECM Engineering Coordination MemoECM Equipment Change ManagementECMS Electrical Contactor Management SystemECMU Electrical Contactor Management UnitECN Engineering Change NoteE-COMETE Extended COrdination of Maintenance End-to-

EndECON EconomyECON EconomicECP Ecam Control Panel

ECS Environmental Control SystemECS Electronic Cooling SystemECSB Embedded Computer System BusECT ECAM Customization ToolECU Electronic Control UnitECUCV Electronic Control Unit Cooling ValveED Edge DistanceEDB ECAM Data BookEDD Engineering Delivery DocumentsEDD Electrical Data DossierEDD Equipment Definition DossierEDES Equipment Definition Evolution SheetEDIU Electrical Discrete Interface UnitEDMC Engineering Drawing Microfilm CardEDMS Engineering Documentation Management

ServicesEDMU Electrical Distribution Monitoring UnitEDP Electronic Data ProcessingEDP Engine Driven PumpEDR Electrical Design RulesEDR Experience Design RequirementsEDS Electronic Distribution of SoftwareEDS Expendable Dispensing SystemEDS Engineering Document SystemEDTA Ethylenediamine TetraacetateEE Electrical and ElectronicEE Electrical Equipment EEC Electronic Engine ControlEEC Engine Electronic ControllerEEC Emergency Electrical ConfigurationEECU Emergency Extension Control UnitEEHS External Event Handling ServiceEENMU Emergency Electrical Network Management

UnitEEPDC Emergency Electrical Power Distribution

CenterEEPMS Emergency Escape Path Marking SystemEEPROM Electrically Eraseable Programmable Read

Only MemoryEF Early Finish DateEFB Electronic Flight BagEFBSA Electronic Flight Bag Software ApplicationEFCC Electronic Flight Control ComputerEFCC Emergency Flight Control ContactorEFCS Electrical Flight Control SystemEFCU Electrical Flight Control UnitEFDARS Expandable Flight Data Acquisition and

Recording SystemsEFF EffectiveEFF EffectivityEFF/FFU Electronic Flight Folder/Flight Follow-UpEFIS Electronic Flight Instrument SystemEFIS CP EFIS Control PanelEFIS SGU EFIS Symbol Generator UnitEFOB Estimated Fuel on BoardEFPMS Emergency Floor Path Marking System

EGC Emergency Generator ContactorEGIU Electrical Generation Interface UnitEGL Engineering Group LeaderEGLC Emergency Generator Line ContactorEGMS Electrical Galley Management SystemEGP EADS General ProcurementEGPWM Enhanced Ground Proximity Warning ModuleEGPWS Enhanced Ground Proximity Warning System

EGT Exhaust Gas TemperatureEHA Electro-Hydrostatic ActuatorEHAC Electro-Hydrostatic Actuator ContactorEHC Electrial Heater ControllerEHCU Electromechanical Handforce Control UnitEHF Extra High FrequencyEHM Engine Health MonitoringEHS Electrical Heater SystemEHSI Electronic Horizontal Situation IndicatorEI Environmental ImpactEIC Engineering Integration CentreEIF Engine Interface FunctionEILC Emergency Interlock Line ContactorEIPM Engine Interface Power ManagementEIPMU Engine Interface Power Management UnitEIRD Equipment Installation Requirement DossierEIS Electronic Instrument SystemEIS Entry into ServiceEIS Engine Interface SystemEIU Engine Interface UnitEIVMU Engine Interface and Vibration Monitoring Unit

EL ElectricEL Equipment ListELA Electrical Load AnalysisELAC Elevator Aileron ComputerELAN Ethernet Local Area NetworkELAPS Elapsed TimeELB Electronic Log BookELC Electronic Library ComputerELC Emergency Line ContactorELEC ElectricELEC ElectricalELEC ElectricityELEK ElectronicELEKS ElectronicsELEV ElevationELEV ElevatorELEVN ElevationELEVR ElevatorELF Engineering support and data Link FunctionELM Electrical Load ManagementELMF Electrical Load Management FunctionELMS Electrical Load Management SystemELMU Electrical Load Management UnitELO Equipment Location OverviewELPU Emergency Lightning Protection Unit

ELS Electronic Library SystemELS Emergency Lighting SystemELT Emergency Locator TransmitterELV ElevationEM ElectroMagnetEM Engine ManualEMA ElectroMechanical ActuatorEMC Electromagnetic CompatibilityEMCON Emission ControlEMCU Electric Motor Control UnitEMCU Emergency Motor Control UnitEMDB Electrical Main Data BankEMEL Edge Mounted Emergency LlightEMER EmergencyEMI Electromagnetic InterferenceEMISN EmissionEMLS Emergency Lighting SystemEMMA Ergonomie Merkmal Methode AirbusEMP EmpennageEMP Electric Motor PumpEMS Equipment Modification SheetEMS Engine Master SwitchEMS Environmental Management SystemEmSS Emergency Signalling SystemEMU Engine Monitoring UnitEMU Engine Maintenance UnitEMWS ElectroMechanical Window ShadeEN European NormENBL EnableENCD EncodeENCDR EncoderENCL EnclosureEND EnduranceENEC Emergency Normal to Emergency ContactorENG EngineENGD EngagedENG OUT Engine OutENGR EngineerENM Electrical Network ManagementENMF Electrical Network Management FunctionENMS Electrical Network Management SystemENMU Electrical Network Management UnitENP Estimated Normal PayloadENRGZ EnergizeENRM Ethernet Network Router ModuleENT EntryENTR EntranceENV EnvelopeENVMOD Envelope ModulationEO Engine OutEO Engineering OrderEO Electrical OutletEO ACCEL ALT Engine Out Acceleration AltitudeEOC Engineering Order ChangeEOP End of PartEOP Engine Oil Pressure transducer

EOS Electronic Overspeed SystemEOSID Engine Out Standard Instrument DepartureEOT End of TapeEOT Engine Oil Temperature transducerEO THR RED SPD Engine Out Thrust Reduction SpeedEP Entry PanelEPAC Entity per Aircraft ChangeEPC External Power ContactorEPCU External Power Control UnitEPD Extended Principle DiagramEPDC Electrical Power Distribution CenterEPDS Extraction Parachute Disconnection SystemEPDS Electrical Power Distribution SystemEPES Extraction Parachute Ejector SystemEPESC Enhanced Passenger Entertainment System

ControllerEPGC External Power Ground ConnectorEPGS Electrical Power Generation SystemEPLC External Power Line ContactorEPLD Electronically Programmable Logic DeviceEPM Engineering Program ManagerEPMM Electrical Power Management ModuleEPMU Electronic Protection and Monitoring UnitEPPT Electronic PerformanceEPR Engine Pressure RatioEPR Equipment Problem ReportEPR Exhaust Pressure RatioEPR.D EPR DescentEPR.L EPR LatchEPROM Erasable Programmable Read Only MemoryEPSU Emergency Power Supply UnitEPU Emergency Power UnitEQIR Engineering Query Investigation reportEQPD EquippedEQPT EquipmentER Extended RangeER Elevator RibER Engine RunER Error ReportERAI Emergency Ram Air InletERECT ErectionERHC Electrical Routing and Harness ConceptERHCD Electrical Routing and Harness Concept

DossierERL Economic Repair LifeERMM En Route Moving MapERO Engine Running On/Off LoadEROM Electronic Readout MachineERP Enhanced Runaway ProtectionERR ErrorERS Embodiment Repercussion SheetERS EraseERS ErasedERU Engine Relay UnitES Early Start DateESAO Essai Sol Assisté par Ordinateur

ESB Electrical System BITEESB Evaluation Service BulletinESBF Electrical System BITE FunctionESC EscapeESD Electro Sensitive DeviceESD ElectroStatic DischargeESD Electronic System DisplayESD Electrical Schematic DiagramESDB Element Standard Data BankESDN Extended System/Structure Description NoteESEC Emergency Smoke/Evacuation ContactorESG Evaluated Service GoalESLB ECAM System Logic BookESLD ECAM System Logic DataESMKTC Emergency Smoke Tie ContactorESN Electrical Structure NetworkESOV Electronic Shutoff ValveESP Electrical Standard PracticesESPM Electrical Standard Practices ManualESPU External Sources Protection UnitESR European Staff RequirementESS EssentialESS Engine Section StatorESSC Essential ContactorEST EstimatedEST Electronic Support ToolsESTAC Emergency Static inverter AC ContactorESTC Emergency STatic inverter ContactorESU Ethernet Switch UnitESWL Equivalent Single Wheel LoadET Elapsed TimeETA Estimated Time of ArrivalETACS External and Taxiing Aid Camera SystemETC Envelope Temporary ChangeETD Estimated Time of DepartureETDS Engineering Technical Data ServiceETE Estimated Time En RouteETHNET EthernetEtio.Ag. Etiologic AgentETL Engineering Team LeaderETLC Emergency TR Line ContactorETO Estimated Time OverETOPS Extended Range Operations for Two-Engine

AeroplanesETP Equal Time PointETR Engineering Template RepositoryETRAC Electronic Thrust Reverser Actuation Controller

ETRAS Electrical Thrust Reverser Actuation SystemETS Equipment Technical SpecificationETSO European Technical Standard OrderETT Estimated Time for TakeoffEULA End User Licence AgreementEUPB Electronic Unit Protection BoxEV Electro ValveEV Earned Value

EVAC EvacuateEVAC EvacuationEVM Earned Value ManagementEVMU Engine Vibration Monitoring UnitEVS Enhanced Vision SystemEWD Engine/Warning DisplayEWIS Electrical Wiring Interconnection SystemEWS Electrical Window ShadesEWS Electronic Warning SystemEWS Electrical Window ShadeEX ExampleEXC ExcitationEXC ExciteEXCD ExcitedEXCESS ExcessiveEXCG ExcitingEXCHG ExchangeEXCHGR ExchangerEXCN ExcitationEXDLS External Door Locking SystemEXH ExhaustEXLCO EXterior Light ControlEXP ExpansionExpl. ExplosiveEXSTG ExistingEXT ExteriorEXT ExternalEXT ExtendEXT ExtensionEXTC ExtractEXTCD ExtractedEXTCG ExtractingEXTG ExtendingEXTIG ExtinguishingEXTIN ExtinctionEXTING ExtinguishEXTING ExtinguisherEXTING ExtinguishingEXTIR ExtinguisherEXTN ExtensionEXTNDD ExtendedEXTR ExtractorEXTR ExtrusionEXTR ExtremeEXTRACT ExtractionEXTRACT ExtractorEZ Electrical ZeroF FuelF Minimum Flap Retract Speed (EFIS)F/C First ClassF/CTL Flight ControlsF/E Flight EngineerF/O First OfficerF/S Fast/SlowF/U Follow-UpF/W Failure Warning

FA Course from a Fixed Waypoint to an Altitude Termination

FAA Federal Aviation AdministrationFAC Flight Augmentation ComputerFACS Flight Augmentation Computer SystemFADEC Full Authority Digital Engine ControlFAF Final Approach FixFAF Forward and Aft FuselageFAI First Article InspectionFAIL FailedFAIL FailureFAIR FairingFAIR Forum with Airlines for Interactive ResolutionFAL Final Assembly LineFALC Final Assembly Line ChinaFALH Final Assembly Line HolderFANS Future Air Navigation SystemFAOM Flight Attendant Operating ManualFAP Flight Attendant PanelFAP Forward Attendant PanelFAR Federal Aviation RegulationsFAS Flight Augmentation SystemFAS Fatigue Approval SheetFAV Fan Air ValveFAWP Final Approach WaypointFBB Fasten Bed BeltFBDPS Flow Balancing Differential Pressure SensorFBS Fixed Base SimulatorFBS Front Bearing StructureFBW Fly-by-wireFC Course from a Fixed Waypoint to a

Changeover PointFC Fully ClosedFC Flight CycleFC Freight Container TrainFC Failure ConditionFCC Flight Control ComputerFCC Flight Control ContactorFCCS Flight Control Computer SystemFCCU Flight Control Computer UnitFCD Full Color DisplayFCD55 Full Color Display 5 inch x 5 inchFCDC Flight Control Data ConcentratorFCGS Flight Control and Guidance SystemFCGU Flight Control and Guidance UnitFCMC Fuel Control and Monitoring ComputerFCMS Fuel Control Monitoring SystemFCO Fulfill Customer OrderFCOC Fuel Cooled Oiler CoolerFCOM Flight Crew Operating ManualFCP Full Change ProcessFCPC Flight Control Primary ComputerFCPI Flight Control Position IndicatorFCR Flight Crew ReportFCRC Flight Crew Rest CompartmentFCRM Flight Control Remote Module

FCSC Flight Control Secondary ComputerFCST ForecastFCTM Flight Crew Training ManualFCTN FunctionFCU Flight Control UnitFCU Fuel Control UnitFCU Flush Control UnitFCV Flow Control ValveFD Course from a Fixed Waypoint to a DME

DistanceFD Flight DirectorFD Fuselage DatumFDA First Design AcceptanceFDAC Full Digital AGU ControllerFDAU Flight Data Acquisition UnitFDB Floor Disconnect BoxFDBK FeedbackFDC Fuel Data ConcentratorFDCE Flight Deck and Cabin EffectsFDCE Flight Deck/Cargo EffectFDD Floppy Disk DriveFDD Functional Description DocumentFDE Flight Deck EffectFDEP Flight Data Entry PanelFDIAF Flight Data Interface/Acquisition FunctionFDIMU Flight Data Interface and Management UnitFDIU Flight Data Interface UnitFDR Flight Data RecorderFDRPL Flight Data Recording Parameter LibraryFDRS Flight Data Recording SystemFDRV Flight Deck Restrictor ValveFDS Fault Detection SpecificationFDSU Flight Data Storage UnitFDU Fire Detection UnitFE Flight EnvelopeFEC Flight Envelope ComputerFEDC Fire Extinguishing Data ConverterFEDR FeederFEGV Fan Exit Guide VaneFE-KB Functional Effects - Knowledge BaseFERD Front End Receiver and DetectorFES Fire Extinguishing SystemFET Field Effect TransistorFE-TP Functional Effects - linked to Troubleshooting

ProcedureFEW Fleet Empty WeightFF Fuel FlowFF Ferry FlightFF Functional FailureFF Front FrameFFA Functional Failure AnalysisFFAR First Flight Article ReviewFFCC Forward Facing Crew Cockpit ConceptFFCC Forward Facing Crew Cockpit ConfigurationFFCCV Fan Frame Compressor Case Vertical

FFCCV Forward Flange Compressor Casing Vibration

FFCM Free Fall Control ModuleFFL Flip Flop LatchFFO Funds From OperationsFFP Fixed Firm PriceFFS Full Feasibility StudyFFS Full Flight SimulatorFFS Front Secondary StructureFG Flight GuidanceF-G/S FLS Glide SlopeFGE Flight Guidance and EnvelopeFGES Flight Guidance and Envelope SystemFGN ForeignFGS Flight Guidance SystemFH Flight HoursFHA Functional Hazard AnalysisFHC Filled Hole Compressive StrengthFHM Flight ops HMI managerFHS Flight Hour ServiceFHSS Frequency Hopping Spread SpectrumFI Flight IdleFIC Function Integrated CenterFIDS Fault Isolation and Detection SystemFIFO First Input/First OutputFIG FigureFIH FAL Installed HarnessFIL FilamentFIL FilletFILG FillingFIL H Fillister HeadFIM Fault Isolation ManualFIN Functional Item NumberFIR Full Indicator ReadingFIS Flight Information ServicesFIX FixedFL Flight LevelFL FloodFL FloorFL FlowFL FluidFla.G Flammable Compressed GasFla.L Flammable LiquidFla.S Flammable SolidFLC Feel and Limitation ComputerFLD FieldFLDK Flight DeckFLEX FlexibleFLG FlangeFLH Flat HeadFLIP Flight Plan Computation ProgramFLLT Flashing LightFLMPRF FlameproofF-LOC FLS LocalizerFLP FlapFLP Flight Line Planning

FLS FMS Landing SystemFLS Field Loadable SoftwareFLSA Fuel Level Sensing AmplifierFLSAP Field Loadable Software Aircraft PartFLSCU Fuel Level Sensing Control UnitFLS R Field Loadable Software RepositoryFLT FlightFLTR FilterFLXTO Flexible Take-OffFM Course from a Fixed Waypoint with a Manual

TerminationFM Flight ManagementFM Flight ManualFM Frequency ModulationFM Fan MarkerFMA Flight Mode AnnunciatorFMC Flight Management ComputerFMC Fault Message CodeFMCS Flight Management Computer System FMCU Flight Management Computer UnitFMD Failure Message DescriptionFME Flow Metering EquipmentFMEA Failure Mode & Effects AnalysisFMES Failure Mode and Effects SummaryFMGC Flight Management and Guidance ComputerFMGEC Flight Management Guidance and Envelope

ComputerFMGES Flight Management Guidance and Envelope

SystemFMGS Flight Management and Guidance SystemFMS Flight Management System FMS Fuel Manifold StagingFMT FormatFMT Frequency Management TrainingFMU Fuel Metering UnitFMV Fuel Metering ValveFNA Final ApproachFNCP Flight Navigation Control PanelFNSG Flight Navigation Symbol GeneratorFO Fully OpenFO Flight OrderFOB Fuel On BoardFOC Fuel/Oil CoolerFOCT Flight Operations Consultation ToolFOD Foreign Object DamageFOD Fuel Over DestinationFOD Flight Operation DomainFODR Flight Operations Documents RepositoryFOM Flight Operations ManualFOM Flight Operations MonitoringFOQA Flight Operations Quality AssuranceFOS Fuel Operator StationFOS Flight Operations SoftwareFOSP Flight Operations Standard PackageFOT FAL Operational Test MeetingFOVE Flight Operations Versatile Environment

FPA Flight Path AngleFPEEPMS Floor Proximity Emergency Escape Path

Marking SystemFPF Fire Protection FunctionFPH Floor Panel HeatingFPL Flight PlanF-PLAN Flight PlanF-PLN Flight PlanFPMU Fuel Properties Measurement UnitFPPU Feedback Position Pick-off UnitFPRM Fuel Pipe Repair ManualFPS Fire Protection SystemFPT Flight Path TargetFPV Flight Path VectorFQ Fuel QuantityFQDC Fuel Quantity Data ConcentratorFQI Fuel Quantity Indicating/Indication/IndicatorFQIC Fuel Quantity Indication ComputerFQMS Fuel Quantity and Management SystemFR FrameFRD Functional Requirement DocumentFREQ FrequencyFREX Support Repercussion SheetFRM Fault Reporting ManualFRNTR FrontierFRPA Fixed Radiation Pattern AntennaFRQ FrequencyFRS Flammability Reduction SystemFRS False Rear SparFRT FrontFRU Frequency Reference UnitFRV Fuel Return ValveFS Front SparFS Fuselage StationFS Factor of SafetyFSA FlySmart with AirbusFSA-NG FlySmart with Airbus-New GenerationFSAT Functional Software Acceptance TestFSB Fasten Seat BeltsFSB Flight Safety BoardFSCM Federal Supply Code for ManufacturersFSD Final Submission DateFSI Functional Standard ItemFSM Field Service ManagerFSN Fleet Serial NumberFSOV Fire ShutOff ValveFSR Field Service RepresentativeFST Fire/Smoke/ToxicityFSTNR FastenerFT Flight TestFTA Flight Test AnalysisFTA Fault Tree AnalysisFTAC Fuel Tank Access CoverFTB For the time beingFTD Flight Training DeviceFTDR Flight Test Data Request

FTE Flight Test EngineerFTG FittingFTG Flight Test GuideFTHR FeatherFTI Flight Test InstallationFTIS Fuel Tank Inerting SystemFTK Fuel TankFTK Feed TankFTM Fuel Temperature MeasurementFTMS Flight Test Management SystemFTP File Transfer ProtocolFTR Flight Test RequestFTRNG FeatheringFTS Frame Time SelectFTSP Floor Temperature Setting Panel FTU Force Transducer UnitFU Fuel UsedFU Feedback UnitFUSLG FuselageFV Flux ValveFW Failure WarningFW FirewallFWA Flight Warning ApplicationFWC Flight Warning ComputerFWD ForwardFWL FirewallFWPS Functional Workpackage SpecificationFWS Flight Warning SystemFWSD Flight Warning and System DisplayFY Fiscal YearG GreenG GalleyG GridG GyroG/A Ground-to-AirG/G Ground GuidanceG/S Glide SlopeGA Go-AroundGA General ApplicationGAAP Generally Accepted Accounting PrinciplesGAD General Assembly DrawingGADIRS GPS Air Data Inertial Reference SystemGADIRU GPS Air Data Inertial Reference UnitGAHMM Global Aircraft Health Monitoring and

Management GAIN Electrical GAlley INsert equipmentGAIR General Assembly Inspection ReportGALV GalvanizeGALY GalleyGAM Global Architecture MockUpGAMMA-A SlopeGAMMA-T Potential SlopeGAMS Ground Asynchronous Messaging ServiceGANA Guidelines for Airframer Network ApplicationsGAPCU Ground and Auxiliary Power Control UnitGATE Glossary of Airbus Terms and Expressions

GATT General Agreement on Tariffs and TradeGCA Ground-Controlled Approach SystemGCP General Conditions of PurchaseGCP Glareshield Control PanelGCR Generator Control RelayGCU Generator Control UnitGCU Ground Cooling UnitGDE GuideGDNC GuidanceGDO Ground Door OpeningGDS GSE Data SheetGE General ElectricGEM Ground Equipment ManualGEN GeneratorGENL GeneralGENPN GENerate Part NumberGES Ground Earth StationGFE Government Furnished EquipmentGFI Ground Fault InterruptionGFLI Ground Fuel Level IndicationGFRP Glass Fiber Reinforced PlasticGFTM General Familiarization Training ManualGGBU Gear Guard Battery UnitGGMU Gear Guard Main UnitGGPCU Generator and Ground Power Control UnitGGSU Gear Guard Sensor UnitGI Ground IdleGIC General Instruction CardGIDOCA Gestion Informatique de la Documentation

AvionGIE Groupement d'Intérêt EconomiqueGIM General Introduction ManualGIPSY General Integrated Publication SystemGLA Gust Load AlleviationGLASU Galley Light Attendant Service UnitGLC Generator Line ContactorGLF Green Light for FlightGLM General List of ModificationsGLR Generator Line RelayGLS GNSS Landing SystemGLT Ground Leak TestGMC General Modification CommitteeGMF General Market FreighterGMF Global Market ForecastGMR Ground Movement RadarGMT Greenwich Mean TimeGMTBF Guaranteed Mean Time Between FailureGNC Galley Network ControllerGND GroundGNLU GNSS Navigation and Landing UnitGNSS Global Navigation Satellite SystemGOH Geräte-Organisations-HandbuchGOP Reduction Gearbox Oil Pressure transducerGP Glide PathGP Group

GPCM Generation Pack and Coordination Memorandum

GPCU Ground Power Control UnitGPIRS Global Positioning and Inertial Reference

SystemGPM General Processing ModuleGPRS General Packet Radio ServiceGPS Global Positioning SystemGPSSU Global Positioning System Sensor UnitGPT Ground Programming ToolGPU Ground Power UnitGPWC Ground Proximity Warning ComputerGPWS Ground Proximity Warning SystemGR GearGR Goods ReceivedGRC Glass Reinforced CompositeGRESS General Requirements for Equipment and

System SuppliersGRFC Global RFCGRP Geographic Reference PointGRP Glass-Reinforced PlasticGRP Ground Reference PointGRP Ground/Geographical Reference PointGRU Ground Refrigeration UnitGRV GrooveGRVTY GravityGS Ground SpeedGSB Ground Service BusGSE Ground Support EquipmentGSHLD GlareshieldGSM Global System for Mobile CommunicationGSM General Structure ManualGSP Ground Service PanelGTA General Terms AgreementGTHRG GatheringGTI Ground Test InstructionsGTR Ground Test RequirementsGUI Graphic Interface UnitGUI Graphical User InterfaceGVI General Visual InspectionGW Gross WeightGWDU Galley Waste Disposal UnitGWR General Working RulesGY GreyGYRO GyroscopeH Hot (Electrical Point)H Runway ThicknessH/W HardwareHA Holding Pattern to an Altitude TerminationHACCP Hazard Analysis Critical Control PointHADC Hybrid Air Data ComputerHARN HarnessHAS Heading and Attitude SystemHBV Handling Bleed ValveHBVAU Handling Bleed Valve Actuation UnitHCS Humidification Control System

HCU Head Up Combiner UnitHCU Hydraulic Control UnitHD HeadHD HoldHDDA Hard Disk Drive ArrayHDG HeadingHDG/S Heading SelectedHDL HandleHDLG HandlingHDM HSDU Data ModuleHDST HeadsetHDU Hose Drum UnitHDWHL HandwheelHE Human ErrorHEA Human Error AnalysisHEATG HeatingHEGS Hydraulic Electrical Generating SystemHEMEA Human Error Modes and Effect AnalysisHEPA High Efficiency Particulate AirHERTO High Energy Rejected TakeoffHES Head-End SwitchHES Head End ServerHESU Head-End Server UnitHEX HexadecimalHF High FrequencyHF Holding Pattern to a Fixed WaypointHF Human FactorsHFDR High Frequency Data RadioHFEC High Frequency Eddy CurrentHGA High Gain AntennaHHL Horizontal Hinge LineHHT Hand-Held TesterHHX Hydraulic Heat ExchangerHI HighHIBU Hybrid Illumination Ballast UnitHID High Intensity DischargeHIDS Host Intrusion Detection System HIL Hold Item ListHK Knoop Hardness Test ValueHL High LevelHLAC High Level AC VoltageHLCC High Lift Control ComputerHLCL HelicalHLD High Power Amplifier/Low Noise

Amplifier/DiplexerHLD HoldHLDC High Level DC VoltageHLDP Hinge Line Drain PanHLDR HolderHLS High Lift SystemHLTY HealthyHM Holding Pattern with a Manual TerminationHMC Hydromechanical ControlHMC Hydraulic Monitoring and ControlHMCA Hydraulic Monitoring and Control Application

HMCRF Hydraulic Monitoring and Control Remote Function

HMDU Hatrack-Mounted Display UnitHMI Human-Machine InterfaceHMU Hydromechanical Metering UnitHMU Hydromechanical UnitH NAV Horizontal NavigationHNG HingeHO HandOverHoE Head of EngineeringHOLD HoldingHOR Hold Open RodHORIZ HorizontalHOT High Oil TemperatureHOV Head Of VersionHP High PressureHPA High Power AmplifierHPC High Pressure CompressorHPC Rear Compressor Rotor and Stator Assembly

HPGC High Pressure Ground ConnectorHPIGS High Pressure Inert Gas SystemHPR High Power RelayHPSOV High Pressure Shut-off ValveHPT High Pressure TurbineHPT Rear Compressor Drive Turbine Rotor

AssemblyHPTACC High Pressure Turbine Active Clearance

ControlHPTC High Pressure Turbine ClearanceHPTCC High Pressure Turbine Case CoolingHPTCC High Pressure Turbine Clearance ControlHPTR High Pressure Turbine RotorHPU Head up Projection UnitHPV HP Bleed ValveHPV High Pressure ValveHQ Have QuickHR Hot RolledHR HourHR Human ResourcesHR Human ReliabilityHRD HMI Requirement DocumentHRP Horizontal Reference PlaneHRS Hot Rolled SteelHRS HoursHS High SpeedHSDU High Speed Data UnitHSG HousingHSI Horizontal Situation IndicatorHSI Hot Section InspectionHSMU Hydraulic System Monitoring UnitHSMU Hydraulic System Management UnitHSS High Speed SteelHST High Speed TransceiverHT HeatHTD Heated

HTG HeatingHTML Hyper Text Mark-up LanguageHTP Horizontal Tail PlaneHTR HeaterHTTP HyperText Transfer ProtocolHT TR Heat TreatHUD Head-Up DisplayHUDC Head Up Display ComputerHUDS Head Up Display SystemHUMIDIF HumidificationHV High VoltageHV Vickers Hardness Test ValueHVDF High and Very High Frequency Direction -

Finding StationHVPS High Voltage Power SupplyHWBPT Hardware BreakpointHYD HydraulicHZ HertzI InertialI Invoice CardI/F InterfaceI/I Inspection/IntervalI/O Input/OutputI/P InputI/P Intercept PointI/P Intercept ProfileIA4CS Identification Authentification Accountability

Audit Access Control SystemIAE International Aero EnginesIAF Initial Approach FixI-AGREE ISMD Approval of Generated Repository

Extracts EnvironmentIAS Indicated AirspeedIAS International accounting standardsIATA International Air Transport AssociationIATP International Air Transport PoolIAW In Accordance withIAWP Initial Approach WaypointIBIT Initiated BITEIBLC Inter-Bus Line ContactorIBN Identification BeaconIBU Integrated Ballast UnitIC Integrated CircuitIC Invoice Control CardICA Instructions for Continued AirworthinessICAO International Civil Aviation OrganisationICARE Illustration, Constraint, Activity, Rule, EntityICC Integrated Change ControlICC International Chamber of CommerceICC Integrated Configuration ControlICCAIA Inter Co-ordinating Council of Aerospace

Industries AssociationICCB ISMD Change Control BoardICD Interface Control DocumentICE In Circuit EmulationICP Integrated Control Panel

ICPS Integrated Control Panel SystemICU Isolation Control UnitICY InterchangeabilityID Inside DiameterID IdentificationIDBT Integrated Design and Build TeamIDC Instrument Display CatalogIDENT IdentificationIDENT IdentifierIDENT IdentifyIDG Integrated Drive GeneratorIDLS Internal Door Locking SystemIDM Impact Drawing ManagementIDP Integrated Data ProcessingID PL Identification PlateIDS Intrusion Detection SystemIDU Interactive Display UnitIEC International Electrotechnical CommissionIECHA Intrinsic/Environmental Conditions Hazard

AnalysisIEEE Institute of Electrical and Electronic Engineers

IES Industrial Evaluation SheetIETF Internet Engineering Task ForceIF Initial FixIF Intermediate FrequencyIFA Integrated Final AssemblyIFA nternational Federation of AirworthinessIFE In-Flight EntertainmentIFEC In-Flight Entertainment CenterIFECT ISMD Functional Effects Check ToolIFES In-Flight Entertainment SystemIFF Identification Friend or FoeIFP In-Flight Performance Computation ProgramIFPA InFlight Performance ApplicationIFR Instrument Flight RulesIFRS International financial reporting standardsIFSD In-Flight Shut DownIFTB In flight Turn backIGA Intermediate Gain AntennaIGB Inlet Gear BoxIGDS Inert Gas Distribution SystemIGGS Inert Gas Generation System IGN IgnitionIGSC Inert Gas System ControlIGV Inlet Guide VaneIHA Intrinsic Hazard AnalysisIIPD Illustrated Initial Provisioning DocumentIJP Integrated Jump PlateILLUM IlluminationILLUMD IlluminatedILS Instrument Landing SystemIM Inner MarkerIMA Integrated Modular AvionicsIMACS Information Management Aircraft-ground

Communication System

IMC Indirect Maintenance CostIMCC Information Management Common CabinetIME Integrated Maintenance ExtractIMM ImmediateIMPACT Improvement Manufacturer Program for Airbus

Customer TrainingIMR Interlock Monitoring RelayIMU Inertial Measurement UnitINA Initial ApproachINB InboundINBD InboardINCLG IncludingINCR IncrementINCR IncreaseIND IndicatorINDG IndicatingINFO InformationINHI InhibitINHIB InhibitINHIB InhibitedINHIB InhibitionINIT InitialINIT InitializationINOP InoperativeINP InputINR InnerINRTL InertialINS Inertial Navigation SystemINSP InspectionINST InstinctiveINST InstrumentINSTL InstallationINSTLLD InstalledINSTM InstrumentationINSU Integrated Network Server UnitINSUL InsulateINSUL InsulationINSUL InsulatorINT InteriorINT InterruptINT IntersectionINT IntercomINTCON InterconnectionINTCP InterceptINTEG IntegralINTEG IntegrallyINTEN IntensityINTERCOM IntercommunicationINTFC InterfaceINTG IntegralINTGT IntegrateINTGT IntegratingINTL InternalINTLK InterlockINTMD IntermediateINTMT Intermittent

INTPH InterphoneINTR InteriorINTRG InterrogateINTRG InterrogatorINTRPT InterruptINU Inertial Navigation UnitINV InverterINV Inverse VideoINWP Intermediate WaypointIOC Indirect Operating CostIOC Initial Operating ClearanceIOE Initial Operating ExperienceIOM Input/Output ModuleIOR Immediate Operational RequirementIP Intermediate PressureIP Initial ProvisioningIP Internet ProtocolIP Invoice Packing CardIP Intermediate PressureIP Interested PartyIP Intellectual PropertyIPC Illustrated Parts CatalogIPC Intermediate Pressure Bleed Check ValveIPCC Intergovernmental Panel on Climate ChangeIPCS Ice Protection Control SystemIPCT Initial Provisioning Coordination TeamIPCU Ice Protection Control UnitIPCV Intermediate Pressure Check ValveIPD Illustrated Provisioning DocumentIPD Initial Provisioning DataIPDU Ice Protection Data UnitIPL Illustrated Parts ListIPO Initial Public stock OfferingIPO Initial Public OfferingIPPU Instrumentation Position Pick-off UnitIPR Intellectual Property RightsIPRAM Integrated Prerecorded Announcement Module

IPS Incorrect Phase SequenceIPS Inlet Particle SeparatorIPSM Intelligent Power Supply ModuleIPT Inadvertent Power TransferIPT Integrated Production TeamIPV Indicator Para VisualIQP Integrated Quality PlanIR Inertial ReferenceIRAN Inspection and Repair As NecessaryIRD Integrated Receiver DecoderIRDC Interface Remote Data ConcentratorIRDM Integrated Receiver Decoder ModuleIRP Integrated Refuel PanelIRQ Interrupt RequestIRR Internal Rate of ReturnIrr.M Irritating MaterialIRS Inertial Reference SystemIRS Inspection Report System

IRU Inertial Reference UnitIS Information SystemsIS Information SystemISA International Standard AtmosphereISA Inertial Sensor AssemblyISAMI Improvement of Structure Analysis through

Multi-disciplinary IntegrationISB Inter-System BusISB Inspection Service BulletinISCD Inter System Communication DataISDN Integrated Services Data NetworkISDN Information System Data NetworkISDU Inertial Sensor Display Unit (IRS)ISG Instrument Symbol Generator UnitISG Integrated Starter GeneratorISG Intermediate Service GoalISIS Integrated Standby Instrument SystemISM Illumination Sensor ModuleISM International Supply Chain ManagerISMD Inter System Maintenance DataISO International Standardization OrganizationISOL IsolationISP Integrated Static ProbeISP In-Service ProblemISPSS In-Seat Power Supply SystemISPSU In-Seat Power Supply UnitISPU In-Seat Power Supply UnitISRO In-Service Reportable OccurrenceISS Inertial Sensor SystemISS Integrated Surveillance SystemISU Inertial Sensor UnitISU Integrated Surveillance UnitISWL Isolated Single Wheel LoadIT InterruptionIT Information TechnologyIT Information TechnologyITCT ISMD Templates Check ToolITH Intake HousingITP Intention To ProceedITS Internal Technical SpecificationIV Isolation ValveIVASEB Integrated Video and Audio Seat Electronic

BoxIVCP Integrated Value Creation ProjectIVMS Internal Video Monitoring SystemIVS Inertial Vertical SpeedJAA Joint Aviation AuthoritiesJAM JammedJAM JammingJAMG JammingJAR Joint Aviation RequirementsJB Junction BoxJB Jack BoxJCT JunctionJEMTOSS Jet Engine Maintenance Task Oriented Support

System

JEP JeppesenJFGW Jettison Final Gross WeightJIC Job Instruction CardJID Jeppesen Inflight DatabaseJITX Jeppesen Integrated Tool Kit XJK JackJM Jump MasterJOEB Joint Operation Evaluation BoardJOG JoggleJTSN JettisonJUNCTN JunctionK Degrees KelvinK KK Subgrade Reaction ModulusKA Knowledge AcquisitionKB/s Kilo Bits per SecondKBD KeyboardKBE Knowledge Based EngineeringKCCU Keyboard and Cursor Control UnitKCS Kneeling Control SystemKDMS Kongsberg Data Manufacturing SystemKE Knowledge EngineeringKFS Kaspersky File SystemKIMS Kongsberg Integrated Management SystemKM Knowledge ManagementKOD Key Of the DayKPI Key Performance IndicatorKPP Key Process ParameterKRUG KruegerKU Keyboard UnitL LeftL LengthL/FD Lateral Flight DirectorL/G Landing GearL/HIRF Lightning/High Intensity Radiated FieldsLA Linear AccelerometerLAF Load Alleviation FunctionLAG LaggingLAILA LAvatory Interface and Light AdapterLAM LaminateLAMM Lights, Audio and Miscellaneous ModuleLAN Local Area NetworkLAND LandingLAP List of Applicable PublicationsLAT LateralLAT LatitudeLATC Live Animal Transportation CalculationLAU Linear Accelerometer UnitLAV LavatoryLBA Logical Bus ApplicationLBA Luftfahrt Bundes AmtLBP Left Bottom PlugLC Line ContactorLC Labour CostLCC Life Cycle CostLCD Liquid Crystal Display

LCDT Load Compressor Discharge TemperatureLCF Left Center FuselageLCH LatchLCHG LatchingLCIT Load Compressor Inlet TemperatureLCL Line Check List (Maintenance)LCN Load Classification NumberLCP Local Control PanelLCSD Line Check Support DataLCT Locate / Location / To LocateLCTR LocatorLCU Lock Control UnitLD Lower DeckLD Left DisplayLD LoadLDA Localizer-type Directional AidLDC Local Door ControllerLDC Local Domain CoordinatorLD CAB Lower Deck CabinLDCC Lower Deck Cargo CompartmentLDCD Lower Deck Cargo DoorLDF Lower Deck FacilitiesLDG LandingLD GALY Lower Deck GalleyLDG GR Landing GearLDI Landing Direction IndicatorLD LAV Lower Deck LavatoryLDM Loads Dispatch ManagerLDMCR Lower Deck Mobile Crew RestLDPA LanDing Performance ApplicationLDS Laptop Docking StationLDS Load Delivery ServiceLDSF Lower Deck Surveillance FunctionLE Leading EdgeLE Log EntryLEAU Large Environment Accelerometer UnitLED Light Emitting DiodeLEHGS Local Electro-Hydraulic Generation SystemLEL Lower Explosive LimitLEO Little Earth OrbitLEP List of Effective PagesLER Leading Edge RibLETD List of Effective Technical DataLF Low FrequencyLF Late Finish DateLFR Low Frequency Radio RangeLG Light GreenLGA Low Gain AntennaLGB Landing Gear BayLGCIS Landing Gear Control Indication SystemLGCIU Landing Gear Control and Interface UnitLGCM Light Green Communication ManagerLGCS Landing Gear Control SystemLGERS Landing Gear Extension and Retraction

SystemLGMS Landing Gear Management System

LGND LegendLGRDC Landing gear Remote Data ConcentratorLGWSS Landing Gear Well Surveillance System LH Left HandLIB Loudspeaker and Indicator BoxLIBOR London Inter-Bank Offered RateLIM LimitLIM LimitationLIM LimiterLIM LimitingLIMG LimitingLIPPLE Lowest Intelligible Phone Power LevelLIQD LiquidLIR Logistic Information ReferentialLIS Localizer Inertial SmoothingLISA Light Interface Standardization AdapterLKD LockedLKG LockingLKR LockerLKSHFT LockshaftLL Latitude/longitudeLL Low LevelLL1 Waypoint from Waypoint List AbbreviatedLLA Lavatory Light AdapterLLAC Low Level AC VoltageLLDC Low Level DC VoltageLLDC Low Level Direct CurrentLLF Low Level FlightLLF Lateral Load FittingLLI Long Lead Time ItemLLL Low Level LightLLO Long Leadtime OptionLLS Left Line Select KeyLLS Liquid Level SensorLLS Low-Level Solid Radioactive MaterialLLSELV Left Lock Selector ValveLM LoadmasterLMC Least Material ConditionLMC Last Minute ChangeLMC Loadmaster ControlsLMCP Loadmaster Control PanelLMES Loss of Main Electrical SupplyLMF Local Maintenance FunctionLMI Loadmaster InstructorLMM Compass Locator at Middle MarkerLMOM Loadmaster Operating ManualLMP Left Middle PlugLMP Line Maintenance PartLMS Leakage Measurement SystemLMT Local Mean TimeLMWS Loadmaster WorkstationLNA Label Not AvailableLNA Low Noise AmplifierLNC Low Noise CruiseLNG LongLNR Linear

LO LowLO Local OscillatorLO Link ObjectLOC LocalizerLOC List of Overhaulable ComponentsLOCKG LockingLODD Last acceptable On Dock DateLOFT Line Orientated Flight TrainingLOG LogicLOGO LogogramLOM Compass Locator at Outer MarkerLONG LongitudeLONG LongitudinalLONGL LongitudinalLONGN LongeronLOP Low Oil PressureLOP Life Operational ProcessLOPA Layout Per AircraftLO PR Low PressureLORAN Long Range Aid to Air NavigationLOS Lavatory Occupied SignLP Low PressureLPC Low Pressure CompressorLPC Less Paper in the CockpitLPC Low Compressor Rotor and Stator AssemblyLPCNG LPC New GenerationLPE Laissez-Passer ExceptionnelLPFEV Long Power Failure EventLPNRV Low Pressure Non Return ValveLPO Landings per OverhaulLPPS Low Pressure port Pressure SensorLPT Low Pressure TurbineLPT Front Compressor Drive Turbine Rotor

AssemblyLPTACC Low Pressure Turbine Active Clearance

ControlLPTC Low Pressure Turbine ClearanceLPTCC Low Pressure Turbine Case CoolingLPTCC Low Pressure Turbine Clearance ControlLPTR Low Pressure Turbine RotorLPU Lightning Protection UnitLR Long RangeLRE List of Radioactive and Hazardous ElementsLRH Loadmaster Reference HandbookLRI Line Replaceable ItemLRI Liquid Resin InfusionLRM Line Replaceable ModuleLROPS Long Range OperationsLRRA Low Range Radio AltimeterLRU Line Replaceable UnitLS Landing SystemLS LoudspeakerLS Low SpeedLS Line Select KeyLS Late Start DateLS Loadable Software

LSA Low Specific Activity Radioactive MaterialLSA Low Speed AileronLSA Loudspeaker Assembly LSAP Loadable Software Aircraft PartsLSB Least Significant BitLSB Lower SidebandLSC Load Signature Certificate LSC Least Significant CharacterLSD Logistic Support DateLSDS Load Sensing Drive StrutLSI Large Scale Integrated/Integration/IntegratorLSP Low SpeedLSP Loadable Software PartLSR Load Shedding RelayLSR Last Significant BitLSSELV Left Steering Selector ValveLSU Lavatory Service UnitLSV Left Servo metering ValveLSW Low Speed WarningLT LightLT TeleloadingLTD LimitedLTD PLT Lighted PlateLTG LightingLTM Livestock Transportation ManualLTMS Life Time Monitoring SystemLTMU Life Time Monitoring UnitLTO Landing and TakeOff LTP Left Top PlugLTR Lab Test RequestLTR Laboratory Test RequirementsLTS LightsLTS Load and Trim Sheet SoftwareLTV Loan To ValueLUAR Laboratory Unit Acceptance ReviewLV Low VoltageLVDS Low Voltage Differential SignalingLVDT Linear Variable Differential TransducerLVL LevelLVL/CH Level ChangeLVO Low Visibility OperationsLVP Low Visibility ProcedureLVR LeverLVR LouverLVT Linear Voltage TransducerLVT Low Volume TerminalLW Landing WeightLW Left WingLWR LowerLWR Laser Warning ReceiverLWSA Lavatory Water Supply AssyL-x Lavatory - XM MagentaM ModeM/L Mood LightingMA Maintenance Annunciator

MAA Maximum Authorized IFR AltitudeMAAP Members and Associated PartnersMABH Minimum Approach Breakoff HeightMAC Mean Aerodynamic ChordMAC Maintenance Action ClassificationMACH Machine / Machining / To MachineMACT Module Application Configuration TableMADAR Malfunction Detection Analysis and Recording

SubsystemMAF Maintenance Access FunctionMAG MagneticMAG MagazineMag.M Magnetized MaterialMAG DEC Magnetic DeclinationMAGN MagnetronMAG VAR Magnetic VariationMAIDS Multipurpose Automatic Inspection and

Diagnostic SystemMAIN MUX Main MultiplexerMAINT MaintenanceMAJ MajorMALS Medium Intensity Approach Light SystemMALSR Medium Intensity Approach Light System with

Runway AlignMAN ManualMAP Ground MappingMAP Master Annunciator PanelMAP Mise au pointMAP Missed Approach SegmentMAPSP Master Attendant Passenger Service PanelMAR MaritimeMAREP Maintenance ReportMAS Modification Approval SheetMASI Mach Airspeed IndicatorMAT Multi-purpose Access TerminalMAT Maintenance Access TerminalMAWP Missed Approach WaypointMAX MaximumMBSE Model-Based Systems EngineeringMC Master ChangeMC Material CostMC Means of ComplianceMCA Minimum Crossing AltitudeMCA Maintenance Central AccessMCBF Mean Cycles between FailuresMCC Modification Customer ChartMCC Multi Crew CooperationMCC Maintenance Control CenterMCCP Major Change Certification PlanMCCS Major Change Certification SummaryMCCT Module Common Configuration TableMCD Movable Class DividerMCDL Master Configuration Deviation ListMCDU Multipurpose Control & Display UnitMCE Motor Control ElectronicMCH Machined

MCL Maximum ClimbMCPU Motor Control and Protection UnitMCR Manufacturer Change RequestMCR Maximum CruiseMCRI Military Certification Review ItemMCS Mission Computer SubsystemMCS MultiChannel Aviation Satellite Communication

SystemMCT Maximum Continuous ThrustMCU Master Control UnitMCU Modular Concept UnitMCUR Mean Cycle Between Unscheduled Removals

MCVL Manual Configuration Variation ListMCW Modulated Continuous WaveMD Main DeckMDA Minimum Descent AltitudeMDA Minimum Decision AltitudeMDAU Modular Data Acquisition UnitMDCC Main Deck Cargo CompartmentMDCD Main Deck Cargo DoorMDDU Multipurpose Disk Drive UnitMDF Medium Frequency Direction Finding StationMDH Minimum Descent HeightMDL ModuleMDM Material Data MeetingMDR Multiregional DBS (Digital Broadcast System)

ReceiverMDS Maintenance Data SystemMDU Manual Drive UnitMDU Multiplier Divider UnitMEA Minimum En Route IFR AltitudeMEAS MeasurementMEASRG MeasuringME-BMS Manufacturing Engineering- Business

Management SystemMEC Main Engine ControlMECH MechanicMECH MechanicalMECH MechanismMED MediumMEDB Model/Engine DataBaseMEDEVAC Medical EvacuationMEL Minimum Equipment ListMEM MemoryMEO Middle Earth OrbitMEP Main Executive ProgramMER Manufacturing Engineering ResponsibleMES Main Engine StartMES Maintenance Economics SheetMET MeteorologicalMEV Main Electro ValveMEV Million Electron-VoltsMEW Manufacturer's Empty WeightMF Medium FrequenciesMFA Memorized Fault Annunciator

MFD MultiFunction DisplayMFG ManufacturingMFP Maintenance Facility PlanningMFP MultiFunction ProbeMFP Mixed Fission ProductsMFR ManufacturerMFS MultiFunction SensorMFT Multi Function TeamMFTW Maximum Design Fuel Transfer WeightMFW Maximum Design Flight WeightMGB Main Gear BoxMGMT ManagementMGT ManagementMGY Master GeometryMHA Minimum Height AlertMHEA Maintenance Human Error AnalysisMHM Maintenance HMI ManagerMHSU Magnetic Heading Sensor UnitMHZ MegahertzMI Magnetic IndicatorMIB Management Information BaseMIC MicrophoneMIC MIDS Interface ComputerMICBAC Micro-System Bus Access ChannelMID MiddleMID Modification Information DocumentMIDS Multifunctional Information Distribution System

MIDU Multi-Input Interactive Display UnitMILA MIni Light AdapterMIMOS Maintenance Information Management tOols

for SystemsMIN MinimumMIN MinorMIN FUEL Minimum FuelMIN TIME Minimum TimeMIP Maintenance Information PrinterMIP Master Interphone PanelMIPO Manually Issued Purchase OrderMIPS Maintenance Information and Planning System

MISC MiscellaneousMISP Major In Service ProblemMix LOC/NAV Mixed LOCalizer/Vertical NAVigationMJW Maximum Jacking WeightMKB Multifunction KeyboardMKC Manufacturing Key CharacteristicMKGS MarkingsMKR Marker (radio) BeaconMLA Maneuver Load AlleviationMLAP Maintenance LaptopMLC Mood Lighting ControllerMLD MoldedMLFAP Mood Lighting Flight Attendant PanelMLG Main Landing GearMLI Magnetic Level Indicator

MLIH Magnetic Level Indicator HousingMLS Microwave Landing SystemMLSCC Microwave Landing System Computed

CenterlineMLW Maximum Landing WeightMM Middle MarkerMM Maintenance ManualMM Main MultiplexerMM Manufacturing ManagerMMC Maximum Material ConditionMMDB Mechanical Main Data BankMME Maintenance & Maintainability EvaluationMMEL Master Minimum Equipment ListMMES Man-Machine Environment SystemMMH/FH Maintenance Man Hours per Flight HourMMI Manual Magnetic IndicatorM-MMC Military Mission Management ComputerM-MMS Military Mission Management SystemMMOSEL Master Minimum Operational and Safety

Equipment ListMMR Multi-Mode ReceiverMMRP Military Mission Radar ProcessorMNFOLD ManifoldMNPS Minimum Navigation Performance

SpecificationMoA Memorandum of AgreementMOA Maintenance Organisation ApprovalMOCA Minimum Obstruction Clearance AltitudeMOD ModificationMOD ModulatorMOD/V Modulating ValveModem Modulator-DemodulatorMODLTR ModulatorMOI Modification Operational ImpactMOKA Methodology and software tools Oriented to

KBE ApplicationsMoM Minutes of MeetingMOM Maintenance Organization ManualMON MonitorMON MonitoredMON MonitoringMONG MonitoringMORA Minimum Off Route AltitudeMORE Mobile Online ReclamationMORV Mixer Overpressure Relief Valve MOS Metal Oxyde SemiconductorMOS Maintenance Operation SoftwareMOSEL Minimum Operational and Safety Equipment

ListMOT MotorMOT MotorizedMOU Memorandum of UnderstandingMP Modification ProposalMP Main ProcessorMP Maintenance PracticesMP Maintenance Procedure

MPA Maximum Power AssuranceMPB Micro Processor BipolarMPD Maintenance Planning DocumentMPDS Maintenance Planning Data SupportMPFAP Multi Purpose Flight Attendant PanelMPL Maximum Permitted LifeMPR Multipurpose RegisterMPS Maximum Performance SpecificationsMPS Multiplex Power SupplyMPU Modem Processor UnitMPU Magnetic PickupMPV Manifold Pressure ValveMQM Mobile Quality ManagementMQPB Minimum Quantity Price BreakMRA Minimum Reception AltitudeMRB Maintenance Review BoardMRB Materials Review BoardMRBD Maintenance Review Board DocumentMRBR Maintenance Review Board ReportMRIU Maintenance & Recording Interface UnitMRO Maintenance and Repair OrganizationMRP Material Requirements PlanningMRS Maintenance, Reliability, SupportabilityMRS Malfunction Reporting SystemsMRTT Multi Role Tanker TransportMRU MIDS Radio UnitMRW Maximum Ramp WeightMS Maintenance ScheduleMS Military StandardMSA Minimum Safe AltitudeMSA Master Services AgreementMSB Most Significant BitMSC Airbus Materiel Support CentreMSC Maintenance Steering CommitteeMSCN Manufacturer Specification Change NoticeMSD Mass Storage DeviceMSDS Material Safety Data SheetMSE Maintenance System ExtractMSG Maintenance Steering GroupMSG MessageMSI Maintenance Significant ItemMSI Medium Scale IntegratedMSL Mean Sea LevelMSL Maintenance Significant Item ListMSL Maintenance System LoadMSM Monitoring System ModuleMSN Manufacturer Serial NumberMSOV Main Deck Shut Off ValveMSTR MasterMSU Media Server UnitMSU Mode Selector Unit (IRS)MSU Motor Switching UnitMSU Magnetic Sensor UnitMSW MicroswitchMT MountMT Mapping Table

MTA Maintenance Task AnalysisMTAD Military Transport Aircraft DivisionMTBD Mean Time Between DefectsMTBF Mean Time Between FailuresMTBI Mean Time Between InspectionMTBIFS Mean Time Between In Flight Shut-downMTBPR Mean Time Between Premature RemovalsMTBR Mean Time Between RemovalsMTBT Mean Time Between TroubleMTBUR Mean Time Between Unscheduled RemovalsMTE Manual Test EquipmentMTES Mobile Tank Extraction SystemMTG MountingMTGC Mounting CenterMTI Multi Tank IndicatorMTN MotionMTO Maximum Take-OffMTO MétéoMTOGW Maximum Takeoff Gross WeightMTOP Maintenance Task Operating PlanMTOW Maximum Takeoff WeightMTP Maintenance and Test Panel MTR MeterMTRM Mid Term Planning MeetingMTS Maintenance Training SimulatorMTS Mixer Temperature SensorMTTF Mean Time to FailureMTTR Mean Time to RepairMTTUR Mean Time to Unscheduled RemovalMTUR Mean Time Between Unscheduled RemovalsMTW Maximum Taxi WeightMTXW Maximum Taxi WeightMU Management UnitMUX MultiplexMUX MultiplexerMV MultivibratorMVDR Multiple VHF Data RadioMVT MovementMW Minimum WeightMWARN Master WarningMWC Master Warning ComputerMWE Manufacturer's Weight EmptyMWG Maintenance Working GroupMWP Master Warning PanelMWS Master Warning SystemMWS-AE Missile Warning System - Active ElementMWS-PE Missile Warning System - Passive ElementMXR MixerMZFCG Maximum Zero Fuel Center of GravitymZFW Minimum Zero Fuel WeightMZFW Maximum Zero Fuel WeightN NorthN NeonN NormalN/A Not ApplicableN/P Next Page

N/W Nose WheelN/WS Nose Wheel SteeringN.O.R Normal Operating RangeN1 Engine Fan SpeedN1 Low Pressure Rotor SpeedN1.D N1 DescentN1.L N1 LatchN2 High Pressure Rotor SpeedNA Neutral AxisNAA National Aviation AuthorityNAC NacelleNAC Nacelle Air CoolingNACA National Advisory Committee for AeronauticsNAC STA Nacelle StationNAI Nacelle Anti-IcingNAIF NSS ACR Instrumentation FunctionNAIS Nacelle Anti-Ice SystemNAS Navy and Army StandardNASA National Aeronautics and Space Administration

NatCo National CompanyNATS North American Telephone SystemNAV NavigationNAVAID Navigation AidNBCM Normal Brake Control ManifoldNBF Network BITE FunctionNBM Nicht einzuarbeitende BMNBPT No Break Power TransferNBS National Bureau of StandardsNBSELV Normal Brake Selector ValveNC Normally ClosedNC Non ConformityNC Numerical ControlNCAGE NATO Commercial and Government EntityNCC Nacelle Compartment CoolingNCD No Computed DataNCF Non Crimp FabricNCF Nose and Center FuselageNCH Noise Compensated HeadsetNCLL Not Closed & Latched & LockedNCR NSS Communication RouterNCU NSS Control UnitNCU Navigation Computer UnitNCU Network Control UnitNCV Nacelle Cooling ValveND Navigation DisplayND Navigation DatabaseNDA Non Disclosure AgreementNDB Non-Directional BeaconNDB Navigation Data BaseNDB Non-Directional Radio BeaconNDM Noise Definition ManualNDT Non-Destructive TestNEA Nitrogen Enriched AirNEF Nacelle Extension FairingsNEG Negative

NEIC Normal to Emergency Interlock ContactorNELI Non-Electrical Galley InsertsNFC Not Fully ClosedNFO Not Fully OpenNFOV Narrow Field of ViewNGCW Next Generation Composite WingNHA Next Higher AssemblyNIM Network Interface ModuleNLA Non-Listed AssemblyNLCP Noise Level Calculation ProgramNLG Nose Landing GearNMI Non Maskable InterruptN MOS Negative Metal Oxide SemiconductorN MOS N-Channel Metal Oxide SemiconductorNMS Noise Masking SystemNMU Noise Masking UnitNo NumberNO Normal OperationNO Normally OpenNO Normal Operation in SSMNonflaG Non-Flammable Compressor GasNOPT No Procedure Turn RequiredNORM NormalNOTAM Notice to AirmenNOVOLRAM Non-volatile Random Access MemoryNOx Nitrogen OxidesNOy Nitrous OxidesNP Non ProcurableNP Propeller Rotational SpeedNPA Non Precision ApproachNPI New Product IntroductionNPN Negative-Positive-NegativeNPT National Taper Pipe (Thread)NPV Net Present ValueNRC Non-Recurring CostNRC Non-Recurring CostsNRP Navigation Reference PointNRZ Non Return To ZeroNS No SmokingNSA Norme Sud AviationNSCM NATO Supply Code for ManufacturersNSDW Non Specific Design WorkNSIU Nose Static Interface UnitNSM Network Server ModuleNSP New Systems PolicyNSS Network Server SystemNSU Network Server UnitNSV Normal Servo ValveNTC Notice To CrewNTD Navigation and Tactical DisplayNTF Non-textile Floor CoveringNTM Nondestructive Testing ManualNTO No Technical ObjectionNTSC National Television System CommitteeNTWK NetworkNUA Normal Unlock Actuator

NUM NumericalNVG Night Vision GogglesNVM Non-Volatile MemoryNW Nose WheelNWS Nose Wheel SteeringNz Vertical Load FactorO OpenO OrangeO/C Open CircuitO/P OutputO2 Oxygen (Symbol)OADMT Overall Aircraft Design Management TeamOAMS Onboard Asynchronous Messaging ServiceOANC Onboard Airport Navigation ComputerOANS Onboard Airport Navigation SystemOASI Operation and Service Instruction ManualOAT Outside Air TemperatureOAV On Aircraft ValidationOBCE On-Board Control EquipmentOBCE-WW On-Board Control Equipment WorldWideOBCU OBOGS Control UnitOBOGS On Board Oxygen Generation SystemOBRM On Board Replaceable ModuleOBS Omni Bearing SelectorOBS Organization Breakdown StructureOBSV ObservationOBSVR ObserverOC Oceanic ClearanceOC Open CircuitOC OvercurrentOC On ConditionOC Order CardOCCAR Organisation Conjointe de Coopération en

Matière d'ArmementOCCPD OccupiedOCCPNT OccupantOCED Operator-Customized ECAM DatabaseOCL Obstacle Clearance LimitOCM Outflow Valve Control ModuleOCM Out of Control MonthsOCS Obstacle Clearance SurfaceOCS Overall Customer SatisfactionOCSM Outflow Valve Control and Sensor ModuleOCU Outflow Valve Control UnitOD Outside DiameterODSM Open world Data Storage ModuleODU Optical Display UnitOEA Oxygen Enriched AirOEB Operations Engineering BulletinOEM Original Equipment ManufacturerOEW Operational Empty WeightOF OverfrequencyOFDM Onboard Flight Data MonitoringOFF/R Off ResetOFFR Off/ResetOFIBI Oil Filter Impending Blockage Indicator

OFMV Oil Flow Management ValveOFST OffsetOFV Outflow ValveOG Operational GroupOGV Outlet Guide VaneOH Opposite HandOH Operation HoursOHC Open Hole Compressive StrengthOHDS OverHeat Detection SystemOHDU Overheat Detection UnitOHP Overhead PanelOHSC Overhead Stowage CompartmentOHT Open Hole Tensile StrengthOHU Optical Head UnitOI Operational InterruptionOIS Onboard Information SystemOIT Oil Inlet TemperatureOIT Onboard Information TerminalOIT Operator Information TelexOJT On Job TrainingOK CorrectOLA Operational Level AgreementOLE Open Logbook EntriesOLIVER Output Level Intended for Very Excellent

ReproductionOLMS Operational Loads Monitoring SystemOLS Onboard Loadable SoftwareOLW Operational Landing WeightOM Outer MarkerOM Overhaul ManualOMD Operator Modifiable DataOMM Overhaul Manual ManufacturerOMP Operator Maintenance ProgramOMS Onboard Maintenance SystemOMT Onboard Maintenance TerminalOMTBF Observed Mean Time between FailureOMTS On-Board Mobile Telephony SystemOMV Overhaul Manual VendorONS Omega Navigation SystemOOT Oil Outlet TemperatureOP OpalescentOP OperationalOPA Operability Performance AssessmentOPAL Order Processing Automated LineOPC Operational Program ConfigurationOPER Operative/Operation/OperatingOPMS Oleo Pressure Monitoring SystemOPNG OpeningOPP OppositeOPS OperationsOPS Operational Program SoftwareOPT OptimumOPT OptionalOPTL OptionalOPTS Oleo Pressure and Temperature SensorOPU Overspeed Protection Unit

OPV Overpressure ValveOR Operational ReliabilityORF OrificeOrg OrganisationOrg Per Organic PeroxideORM Onboard Replaceable ModuleORT Owner Requirement TableORVD Overpressure Relief Valve with Dump Function

ORZ Omni Range ZeroOS Operating SystemOSC OscillatorOSCU Oxygen System Control UnitOSF Open world Server FunctionOSFC Open world Server Function CabinetOSG Overspeed Safety GovernorOSM Operational Supplier ManagerOSS Option Selectable SoftwareOSW Out of Sequence WorkOTC Operability Test CardOTD On Time DeliveryOTH On Time HandoverOTOW Operational Take-Off WeightOTP One Time PasswordOTSSU Outboard Transmission Speed Sensor UnitOU Outlet UnitOUT OutletOUT OutputOUTB OutboundOUTBD OutboardOUTFLW OutflowOUTR OuterOV OverOVBD OverboardOVF Over FrequencyOVFL OverflowOVHD OverheadOVHT OverheatOVID Obviously Visible Impact DamageOVLD OverloadOVPRESS OverpressureOVRD OverrideOVSP OverspeedOVSTEER OversteerOVTEMP OvertemperatureOVV OvervoltageOW Outer WingOWAG Open World A/C Ground CommunicationOWB Outer WIing BoxOWD Open World DiodeOWE Operating Weight EmptyOWP Over Wing PanelOXY OxygenOxy M Oxidizing MaterialP PurpleP Pressure

P Roll RateP ProbabilityP/B PushbuttonP/BSW Pushbutton SwitchP/C Printed CircuitP/C Premium ClassP/L PayloadP/N Part NumberP/P ROM Preprocessor ROMP/Y Premium Economy ClassP.ALT Profile AltitudeP.CLB Profile ClimbP.DES Profile DescentP.EPR Profile EPRP.MACH Profile MachP.N1 Profile N1P.P. Prevention ProcessP.SPD Profile SpeedP(-+ OFF) Polarity (minus, plus, off)PA Passenger AddressPA Public AddressPA AMP Passenger Address AmplifierPAD Partner Agreement DocumentPADS Pneumatic Air Distribution SystemPAL Programmable Array LogicPAM Product Assurance ManagerPAR Precision Approach RadarPARAM ParameterPARK ParkingPAS Pitch Attitude SensorPATCC Production Aircraft Test Completion Certificate

PATM Production Aircraft Test ManualPATS Passenger Air-to-Ground Telephone SystemPAX PassengerPAX PAX Announcement Entertainment & Service

Multiplex SysPB Policy BoardPBCU Propeller Brake Control UnitPBD Place Bearing/DistancePBE Protective Breathing EquipmentPBE Product Based EvaluationPBIT Power-Up Built-in TestPBM Power Plant Build-up ManualPBS Product Breakdown StructurePBSELV Park Brake Selector ValvePBSW Pushbutton SwitchPBV Pack Bay VentilationPC Pack ControllerPC Personal ComputerPC Packing CardPCA Portland Cement AssociationPCA Positive Control AirspacePCB Printed Circuit BoardPCCB Process Change Control BoardPCD Performance Compliance Document

PCDM Primary Contactor Driver ModulePCDS Primary Contactor Driver SystemPCE Personal Consumption ExpendituresPCE PrecoolerPCEJPS Precooler Ejector Pressure SensorPCEJSOV Precooler Ejector Shut-Off ValvePCF Passenger Cum FreighterPCM Power Conditioning ModulePCM Pulse Code ModulationPCMCIA Personal Computer Memory Card International

AssociationPCOS Power Cowl Opening SystemPCPU Primary COS Power UnitPCS Propulsion Control SystemPCT Probe Compensator TemperaturePCT PercentPCU Passenger Control UnitPCU Power Control UnitPCU Power Controller UnitPD Principle DiagramPD Pitch DiameterPDA Personal Digital AssistantPDC Panel Display CatalogPDC Procurement Data CardPDCS Power Distribution Control SystemPDDC Provisioning Descriptive Data CardPDF Portable Document FormatPDFU Pedal Damping and Friction UnitPDL Portable Data LoaderPDLCU Privacy Door Lock Control UnitPDLS Privacy Door Lock SystemPDM Post Delivery Modification MaterialPDM Privacy Door ModulePDM Product Data ManagementPDMC Power Distribution Maintenance ComputerPDMF Power Distribution Maintenance FunctionPDMI Power Distribution Maintenance InterfacePDMIC Power Distribution Maintenance Interface

ContactorPDMMF Power Distribution Monitoring and Maintenance

FunctionPDMT Power Distribution Maintenance TerminalPDO Power Door OpeningPDOS Power Door Opening SystemPDR Product Design ReviewPDR Preliminary Design ReviewPDRC Procurement Data Reference CardPDT Project Development TeamPDU Power Drive UnitPE HP Stage Air PressurePED PedestalPED Portable Electronic DevicePEDMU Primary Electrical Distribution Management

UnitPEF Pylon Extension FairingPEGS Production Engineering Group System

PEM Performance Engineers ManualPEP Performance Engineers ProgramPEPDC Primary Electrical Power Distribution CenterPERC PercussionPERF PerformancePERM PermanentPERS PersonalPES Passenger Entertainment SystemPES Production Engineering SpecificationPESAR Passenger Entertainment System Audio

ReproducerPESC PES ControllerPESMMUX Passenger Entertainment System Main MuxPF Pilot FlyingPF Power FactorPFCS Primary Flight Control SystemPFD Primary Flight DisplayPFDB Power Floor Disconnect BoxPFEV Power Failure EventPFF Pre-First FlightPFIN Power Failure InterruptPFIS Passenger Flight Information SystemPFM Pre-Flight MessagePFQ Preselected Fuel QuantityPFR Post Flight ReportPFS Pre-Feasibility StudyPFTU Pedal Feel and Trim UnitPG PagePG BUS Program BusPH PhasePHA Preliminary Hazard AnalysisPHC Probe Heat ComputerPHD Protruding HeadPHV Pressure Holding ValvePI Procedure Turn to an InterceptPIA Peripheral Interface AdapterPIA Programmable Interface AdapterPID Personal Identification DevicePIESD Passenger Information and Entertainment

Services DomainPIH Pressure Interstage Hydraulic (PW eng)PIM Programming and Indication ModulePIM Passive InterModulationPIN Personal Identification NumberPIN PROG Pin ProgrammingPIPC Power Plant Illustrated Parts CatalogPIR Pressure Interstage ReturnPIREP Pilot ReportPISA Passenger Interface and Supply AdapterPIU Passenger Information UnitPIX PicturePK PinkPKC Performance Key CharacteristicPKI Public Key InfrastructurePKK Power Plant KitPL Plate

PL PlugPLA Power Light AdapterPLATF PlatformPLC Powerline CommunicationPLCRD PlacardPLS PulsePLSP Point Level Sensor ProcessorPLT PilotPLYWD PlywoodPM Phase ModulationPM Project ManagementPMA Permanent Magnet AlternatorPMA Parts Manufacturing ApprovalPMAT Portable Multipurpose Access TerminalPMC Power Management ControlPMC Power Management ControllerPMC Process Material ControlPMDB Production Management Data BasePMG Permanent Magnet GeneratorPMITS Project Management Information Technology

SystemPMM Personalization Memory ModulePMO Project Management OfficePMO Project Management OperationPMP PumpPMP Performance Monitoring ProgramPMP Primary Maintenance ProcessPMR Performance Maintenance RecorderPMS Process and Material SpecificationPMU Power Management UnitPMUX Power Plant MultiplexerPMUX Propulsion MultiplexerPN Part NumberPNEP Pre-NAV Engagement PathPNEU PneumaticPNF Pilot Non FlyingPNL PanelPNP Positive-Negative-PositivePNR Part NumberPNT Paint / Painting / To PaintPNTL PintlePNU PNeUmaticPO PickoffPO Purchase OrderPOA Production Organization ApprovalPOB Pressure-Off BrakePODD Passenger Owned Devices DomainPODTS Precooler Dual Temperature SensorPOM Production Organisation ManualPOM Point of MeasurementPOR Point of RegulationPORT PortablePOS PositionPOST Power on Self TestPOT PotentiometerPOXIP Passenger Oxygen Indication Panel

PPB Provisioning Parts BreakdownPPBU Power Plant Build UpPPC Phosphor Protection CircuitPPDC Provisioning Procurement Data CardPPDES Product Performance Data Exchange

SpecificationsPPE Proofreading Process EvidencePPI Plan Position IndicatorPPIPC Power Plant IPCPPM Parts per MillionPPM Performance Programs ManualPPM Pulse Position ModulationPPOS Present PositionPPU Position Pickoff UnitPQAS Program Quality Assurance SystemPR PressurePR Power Ready RelayPR Progress MeetingPR Regulated Pressure (downstream of bleed

valve)PR Project ReviewPRA Particular Risk AnalysisPRAM Prerecorded Announcement and MusicPRB ProbePRCSG ProcessingPRCSR ProcessorPREAMP PreamplifierPRECOOL PrecoolerPRED PredictionPRED PredictivePRE-EMPT Pre-emptivePREP Preparation / Prepare / PreparedPREREC PrerecordedPRESEL PreselectionPRESEL PreselectorPRES POS Present PositionPRESS PressurePRESS PressurizationPRESS PressurizePREV PreviousPRF Interrogation RatePRGM ProgramPRI PriorityPRIM PrimaryPRIM PRIMary SystemPRIMES Product Related Information Management

Enterprise SystemPRIV PrivatePRL ParallelPRL Parameter Requested ListPRL/MPL Parameter Recording List/Main Parameter List

PRM Passenger with Reduced MobilityPROBIGGS Portable Removable On Board Inerting Gas

Generating System

PROBOGS Preconditioning On Board Oxygen Generation System

PROC ProcedurePROCSR ProcessorPROC T Procedure TurnPROF ProfilePROG ProgramPROG ProgrammingPROG ProgressPROJ ProjectorPROM Programmable Read Only MemoryPROP PropellerPROS Present PositionPROT ProtectionPROX ProximityPRPHL PeripheralPRR Power Ready RelayPRSRZ PressurizePRSRZG PressurizingPRV Pressure Regulating ValvePS Process SolutionPSA Passenger Service AdapterPSC Passenger Supply ChannelPSCU Proximity Switch Control UnitPSD Protected Switch DevicePSDU Power Supply Decoupling UnitPSIC Proximity Sensor Interface CardPSIU Passenger Service Information UnitPSNR PositionerPSPM Product Support Procedures ManualPSQM Propulsion System Quality ManagementPSS Passenger Services SystemPSSA Preliminary System** Safety AssessmentPSTN Public Switch Telephone NetworkPSU Passenger Service UnitPSU Power Supply UnitPSU Passenger Supply UnitPSUD Passenger Service Unit DecoderPSV Planned Shop VisitPT PointPT Switching Pressure of HP ValvePTC Positive Temperature CoefficientPT CODE Part CodePTDC Provisioning Technical Data CardPTLU Pedal Travel Limiting UnitPTM Performance Training ManualPTP Programming and Test PanelPTR Push to ResetPTR PrinterPTS Purchaser Technical SpecificationPTT Push-to-TestPTT Push-to-TalkPTU Power Transfer UnitPTU Power Transformer UnitPU Parts UsagePU Pick Up

PU Processing UnitPU Panel UnitPURS PurserPVC Polyvinyl ChloridePVD Para Visual DirectorPVI Paravisual IndicatingPVIS Passenger Visual Information SystemPVS Process Verification SystemPW Pratt & WhitneyPWCU Potable Water Control UnitPWDB Power Wall Disconnect BoxPWIP Potable Water Indication PanelPWM Pulse Width ModulatorPWR PowerPWS Potable Water SystemPWS Predictive WindShearPWSP Potable Water Service PanelPYL PylonQ Pitch RateQA Quality AssuranceQAD Quick-Attach-DetachQAM Quadrature Amplitude ModulationQAR Quick Access RecorderQAT Quadruple ARINC TransmitterQC Quality ControlQC Quick ChangeQD Quick DonningQDB Quality Directors BoardQEC Quick Engine ChangeQEI Quality Event InformationQF Quality Task ForceQFRP Quartz Fiber Reinforced PlasticQG Quality gatesQIG Quality Improvement GroupQIR Quality Improvement RequestQISP Quality In-Service ProblemQj Probability of Being in Condition j (for

structure)QLB Quality Log BookQMA Qualitative Maintenance AnalysisQMS Quality Management SystemQMS Quality Management SystemQMU QAM Modulator UnitQPL Qualified Products ListQRH Quick Reference HandbookQRS Quality Requirement SheetQSR Quality Survey ReportQSR Quarterly Service ReportsQTP Qualification Test ProgramQTR Qualification Test ReportQTY QuantityQTZ QuartzR RedR RightR ReleaseR Reset

R ResistorR Yaw RateR/A/G Red/Amber/GreenR/AD Retro/Adaptation DrawingR/C Rate of ClimbR/D Rate of DescentR/H Radar HeightR/I Radio/InertialR/I Removal/InstallationR/L Reading LightR/R Rules/RecommendationsR/T Radio TransmitR/T Receiver Transmitter UnitR.A. Recommended ActionsR&D Research and DevelopmentR&T Research and TechnologyRA Radio AltimeterRA Radio AltitudeRA Redundancy AssuranceRA Resolution AdvisoryRAA Ram Air ActuatorRAAS Runway Awareness and Advisory SystemRAC Rotor Active ClearanceRAC Rules of the Air and Air Traffic ControlRACC Rotor Active Clearance ControlRACON Radar BeaconRACSB Rotor Active Clearance Start BleedRAD RadioRAD Random Access DeviceRAD Roll Anticipation DistanceRAD Radome and Antenna DownconverterRADCON Radar Data ConverterRadM Radioactive MaterialRADVR Random Access Digital Video ReproducerRAG Repair Assessment GuidelinesRAI Ram Air InletRAIL Runway Alignment Indicator Light SystemRAIMS Radio and Audio Integrating Management

SystemRALTU Reprogrammable Annunciator Light Test UnitRAM Random Access MemoryRAO Ram Air OutletRAPCON Radar Approach ControlRAS Repair Design Approval SheetRAS Remote Access ServiceRAS Rien à SignalerRAS Ramp Actuation SystemRAS/Wedge Ramp Aerial delivery System/WedgeRASC Reservoir Air Supply CoolerRASCI Responsible, Accountable, Support, Consulted,

InformedRAT Ram Air TurbineRAT Ram Air TemperatureRATC Remote Air Traffic ControlRAX Random Access Transfer MemoryRB Resource BITE

RBAY Rib Bay / Rib BaysRBC Resource BITE ConfigurationRBC Rear Bearing ChamberRBCU Remote Braking Control UnitRBE Requirements Based EngineeringRBN Radio BeaconRBP Right Bottom PlugRBS Resource Breakdown StructureRC Repetitive ChimeRC Recurring CostRC Reference ChordRC Recurring CostsRCC Remote Charge ConverterRCC Remote Control CenterRCCB Remote Control Circuit BreakerRCCBM RCCB ModuleRCCU Remote Calibration Control UnitRCD RAAS Configuration DataBaseRCDC Ramp Cargo Door Controller RCDG RecordingRCDR RecorderRCF Right Center FuselageRCL RecallRCLM Runway Center Line MarkingRCLS Runway Center Line Light SystemRCP Reverse Current ProtectionRCPT ReceptacleRCPTN ReceptionRCS Radio Communication SystemRCSM Resident Customer Support ManagerRCT Rear Center TankRCU Remote Control UnitRCVR ReceiverRCVY RecoveryRD Retro DrawingRD Right DisplayRD Reqirements DevelopmentRDC Remote Data ConcentratorRDDMI Radio Dual Distance Magnetic IndicatorRDL Resident Data LoaderRDNG ReadingRDU Receiver Decoder UnitRDY ReadyRE Requirements EngineeringREADG ReadingRECIRC RecirculateRECIRC RecirculationRECOG RecognitionRECONF ReconfigurationRECT RectifierRED ReductionRED Request for Evolution of DocumentREDCR ReducerREDUND RedundancyREF ReferenceREF ALIGN Reference Alignment

REFL RefuelREFLNG RefuelingREFR RefrigeratorREFUEL RefuelingREG RegulatorREG RegisterREGUL RegulationREIC Reconfigurable ETOPS Isolation ContactorREIL Runway End Identification LightsREL ReleaseREL ReluctanceREP RepositoryREP Reporting PointREPL BY Replaced byRES ResistanceRET RetractRET ReturnRETR RetractRETRD RetractedRETRG RetractingRETRN RetractionREV ReverseREV ReviseREV RevisionRF Radio FrequencyRFA Request for AmendmentRFC Request for ChangeRFC Request For CommentsRFE Rear Fuselage and EmpennageRFG Request For GSERFI Radio Frequency InterferenceRFI Request for InformationRFI Resin Film InfusionRFL RefuelingRFN Rear Fuselage NacelleRFP Request for ProposalRFQ Request For QuotationRFR Request for RevisionRFS Reason for SelectionRFS Regardless of Feature SizeRFS Request for ServiceRFTI Request For Technical InformationRFU Radio Frequency UnitRFW Request for WorkRFX Generic term for an RFI, RFTI or RFPRGAU Rate Gyro and Accelerometer UnitRGLRD RegulatedRGLTG RegulatingRGLTN RegulationRGTR RegisterRH Right HandRH Radio HeightRHEO RheostatRHL Rudder Hinge LineRHS Relative Humidity SensorRJB Radio Junction Box

RK RackRLA Reverser Lever AngleRLC Reconfiguration Line ContactorRLD Required Landing DistanceRLF ReliefRLG Ring Laser GyroR-LMF Right Side Local Maintenance FunctionRLS Remote Light SensorRLS Right Line Select KeyRLSED ReleasedRLSELV Right Lock Selector ValveRLTD RelatedRLY RelayRM Radio MagneticRM Requirements ManagementRMC Removable Media CaseRMCU Remote Magnetic Compensation UnitRMI Radio Magnetic IndicatorRMM Removable Memory ModuleRMO Retrofit Modification OfferRMO Request for Modification OrderRMO Retrofit Modification OrderRMP Radio and Audio Management PanelRMP Radio Management PanelRMP Right Middle PlugRMS Root Mean SquareRMT RemoteRMU Radio Management UnitRNAV Area NavigationRNG RangeRNI Radio Navigation IndicatorRNP Required Navigation PerformanceROA Return on assetsROA Read Only AreaRODS Read Only Data ServiceROE Return on equityROI Return on investment (capital employed)ROLR RollerROLS Remote Oil Level SensorROM Read Only MemoryR-OMS Right Side Onboard Maintenance SystemROP Runway end Overrun ProtectionROT Runway Occupancy TimeROTG RotatingROW Runway end Overrun WarningRPB Rear Pressure BulkheadRPCU Residual Pressure Control UnitRPDR ReproducerRPF Reporting Processing FunctionRPG Report Program GeneralRPLNT RepellentRPS Remote Power SupplyRPSA Rotating Pressure Sensing AssemblyRPTG RepeatingRPTG ReportingRPTR Repeater

RPU Receiver Processor UnitRPWL Residual Pressure Warning LightRPWS Residual Pressure Warning SwitchRQ Recommended QuantityRQRD RequiredRR Rolls RoyceRR Low or Medium Range Frequency Radio

Range StationRR Rudder RibRS Rear SparRS Repeating StrokeRS Restraint SystemRSA Request for Service AllowanceRSP Responder BeaconRSP Risk Sharing PartnerRSPL Recommended Spare Parts ListRSR Route Surveillance RadarRSS Receiver Surveillance SystemRSS Root Sum SquareRSSELV Right Steering Selector ValveRST ResetRSU Raster Shading UnitRSV ReserveRSV Right Servo metering ValveRSVR ReservoirRTA Receiver Transmitter ARINCRTBC Refuel and Towing on Battery ContactorRTC Real Time ClockRTC Reconfiguration Transfer ContactorRTCA Radio Technical Commission for AeronauticsRTE RouteRTF Radio TelephonyRTF Rich Text FormatRTF Requirement for Test FacilitiesRTG RatingRTK Revenue Tonne KilomètreRTL Rudder Travel LimitingRTLU Rudder Travel Limiting UnitRTM Real Time MonitoringRTM Resin Transfer MouldingRTN ReturnRTNC Refuel and Towing on Normal ContactorRTNR RetainerRTO Rejected TakeOffRTOLW Runway Takeoff and Landing WeightRTOW Runway Takeoff WeightRTP Right Top PlugRTR RouterRTRSW Rotary SwitchRTRY RotaryRTS Return to SeatRTT Return To TankRTU Radar Transceiver UnitRTU Rate of Turn UnitRUD RudderRVCP Remote Video Control Panel

RVDT Rotary Variable Differential TransducerRVG Residual Value GuaranteeRVR Runway Visual RangeRVS ReverseRVS Refueling Video SurveillanceRVSM Reduced Vertical Separation MinimumRVSN ReversionRVT Rotary Variable TransformerRVT RivetRW Ramp WeightRW Right WingRWDS RearwardsRWK ReworkRWR Radar Warning ReceiverRWS Retrieval Winch SystemRWY RunwayRX ReceiveRZ Return to ZeroS Minimum Slat Retract Speed (EFIS)S SouthS SlatsS/C Step ClimbS/D Step DescentS/H Sample and HoldS/MECH Shortening MechanismS/N Serial NumberS/R Safety / ReliabilityS/W SoftwareSA Stress AnalysisSA Single AisleSaaS Software as a ServiceSAC Single Annular CombustorSACU Stand Alone Compensator UnitSACU Semi-Automatic Control UnitSAD Stress Analysis DataSAD Spares Advance DataSADF Spares Advance Data FormSAE Society of Automotive EngineersSAF SafetySAFD SafetiedSAL System Address LabelSALS Short Approach Light SystemSALSA Spot Array Light Supply AdapterSAM Stress Analysis ManualSAM Space Allocation ModelSAM Specific Architecture MockUpSAOHE Surface Air/Oil Heat ExchangerSAP Systems, Applications, & Products for data

processingSAP BW SAP Business information WarehouseSAP ITS SAP Internet Transaction ServerSAR Smart Access RecorderSAS Static Strength Approval SheetSAS Software Accomplishment SummarySAT Static Air TemperatureSAT SATCOM

SATCOM Satellite CommunicationSATURN Second-Generation Antijamming Tactical UHF

Radio for NATOSAU SATCOM Adapter UnitSAV Starter Air ValveSB Service BulletinSBAS Satellite Based Augmentation SystemSBB Swift BroadbandSBD Single Blade DoorSBDB Service Bulletin Data BaseSBEW Standard Basic Empty WeightSBI Service Bulletin IndexSBL SymbolSBS Service Bulletin Effectivity ScheduleSC Single ChimeSC ScaleSC Source CodeSCAV ScavengeSCCS Sub-Contract Control SheetSCE SourceSCE Showing Compliance EngineerSCFM Standard Cubic Feet Minute of Gaseous

AirflowSCG System Configuration GuideSCH SchematicSCI Secure Communication InterfaceSCL Software Configuration LibrarySCL Software Control LibrarySCM SDU Configuration ModuleSCN Specification Change NoticeSCO Section ControlSCO Section ControllerSCR ScrewSCR Specification Change RequestSCS Supplemental Cooling SystemSCS Single Channel SimplexSCS Steering Control SystemSCS Supportability Candidate SheetSCS Steering Control SystemSCS Supplier Controlled SoftwareSCU Supplemental Control UnitSCU System Control UnitSCUP ScupperSD System DisplaySD System DrainSDAC System Data Acquisition ConcentratorSDAC System Data Analog ConverterSDAU Special Data Acquisition UnitSDB Signals Data BaseSDCF Smoke Detection Control FunctionSDCU Smoke Detection Control UnitSDD System Description DocumentSDDF Source Data Discrepancy FormSDF Smoke Detection FunctionSDG Spares Data GuideSDGP Source Data Gathering process

SDI Source Data IdentifierSDI Source/Destination IdentifierSDM Smart Diode ModuleSDN System Description NoteSDOF Single Degree of FreedomSDP Steering Disconnect PanelSDS Smoke Detection SystemSDS Software Definition SummarySDTM Structure Description Training ManualSDU Satellite Data UnitSDU Seat Display UnitSDW Specific Design WorkSE Simplified EnglishSE SectionSEAL SealingSEB Seat Electronic BoxSEB Service Evaluation BulletinSEC SecondarySEC SECondary ComputerSEC Securities and Exchange CommissionSEC Spoiler Elevator ComputerSECT SectionSEG SegmentSEL SelectSEL SelectedSEL SelectionSEL SelectorSELCAL Selective CallingSELV Selector ValveSENS SensitivitySEP SeparatorSEPDC Secondary Electrical Power Distribution Center

SEQ SequenceSEQ SequentialSER SerialSER Serial NumberSER/PRL Serial to ParallelSERNO Serial NumberSES Support Equipment SummarySES Supplier Equipment SpecificationSET SettingSF Spot FaceSFAR Special Federal Aviation RegulationSFC Specific Fuel ConsumptionSFCC Slat Flap Control ComputerSFCC Sideways Facing Crew CockpitSFCC Sideways Facing Crew ConfigurationSFE Seller Furnished EquipmentSFI Synthetic Flight InstructorSFPI Slats/Flaps Position IndicatorSG Stroke GeneratorSG Starter GeneratorSGCU Smart Galley Control UnitSGCU Starter Generator Control UnitSGHTNG RD Sighting Rods / Sighting Rod

SGML Standard Generalized Markup LanguageSGP Stroke Generator ProcessorSGR Software Ground RepositorySGSC Sheddable Ground Servicing ContactorSGU Symbol Generator UnitSH SheetSH ABS Shock AbsorberSHADE Schedules Airbus Data ExchangeSHCM System Heating Control ModuleSHDBL SheddableSHED SheddableSHED SheddingSHF Super High FrequencySHKR ShakerSHLD ShieldSHLD ShieldingSHM Structural Health MonitoringSHN Scratch Hardness NumberSHPNG ShippingSHRD ShroudSHR PN Shear PinSHT ShortSI Slip IndicatorSI Systeme InternationalSI Special InstructionSIAP Structural Inspection Adjustment ProgramSIB Security Information BaseSIB Seat Interface BoxSIC System Isolation ContactorSID Standard Instrument DepartureSID System Interface DefinitionSIDP System Installation Design PrinciplesSIE Surface Industrielle EtendueSIF Selective Identification FeatureSIF Spares Information FileSIG SignalSIH Section Installed HarnessSIL Speech Interference LevelSIL Service Information LetterSIL Software Information LibrarySIM SimulationSIN SineSIR Service Identification RequestSIRD System Installation Requirement DossierSIRU Secure Interface Router UnitSIS Standalone Identification SystemSIS Spares Investment StudySIU Server Interface UnitSIV Standard Item VariationsSJC Standard Job CardSKT SocketSL Sea LevelSL Service LetterSLA Small Light AdapterSLA Service Level AgreementSLC Starter Line Contactor

SLD SlideSLD SlidingSLI System Level IntegrationSLL Shelf Life LimitationSLM Service Level ManagementSLMC Service Life Limits and Maintenance ChecksSLP Space Limited PayloadSLR Service Level RequirementSLS Side Lobe SuppressionSLS Shop Loadable SoftwareSLS Slide Lever SwitchSLT SlatSLV SleeveSLV Stipulated loss valueSM Standards ManualSM3 Standard Manual Part 3SMA Single Motor ActuatorSMART Standard Modular Avionics Repair and TestSMC System Manager ControllerSME Subject Matter ExpertSMEL Seat-Mounted Emergency LightSMIB Security Management Information BaseSMK SmokeSML SB Modification Crossreference ListSMM System Management ModuleSMO Stabilized Master OscillatorSMR Sealed Manufacturing RouteSN Serial NumberSNGL SingleSNIF Sensitivity for Normal InterfaceSNMP Simple Network Management ProtocolSNSG SensingSNSR SensorSO ShutoffSO2 Sulphur DioxideSoC Statement of ConformitySOC Standard Operating ClearanceSOL SolenoidSOP Standard Operating ProcedureSOR Statement Of RequirementsSOS Sell or ScrapSOTM System Operation Training ManualSOV Shut-Off ValveSOW Statement of WorkSP SamplingSP SpaceSPAD ScratchpadSPAN Supplier and Partners Airbus NetworkSPASE Single Point Audio System EarthSPATIAL System for Acquisition and Processing of

ARINC and LogicSPB Seat Power BoxSPC Spare Parts ClassificationSPC Special Purpose CompanySPD SpeedSPD/M Speed-Mach

SPDB Secondary Power Distribution BoxSPE Seller Purchased EquipmentSPE Supplier Purchased EquipmentSPEC SpecificationSPF Specific Pathogen FreeSPF SuperPlastic FormingSPFK SpecificSPKR SpeakerSPL Sound Pressure LevelSPLC SpliceSPLR SpoilerSPLY SupplySPM Signal Processing ModuleSPM Standard Practices ManualSPMC Service Process Material ControlSPMG Shorted Permanent Magnet GeneratorSPOP Service Process Operation ProcedureSPP Software Pin ProgrammingSPPF Software Pin Programming FunctionSPPU Station Position Pick-Off UnitSPR Service and Performance ReportSPRDR SpreaderSPRINT Systema de Production IntegradoSPRT SupportSPS Service Process SolutionSPS Seat Power SupplySPS/B Superseded bySPSA Supplier Product Support AgreementSPST Single Pole Single ThrowSPU Starter Power UnitSQ SquelchSQW Square WaveSR SeniorSRD Shorted Rotating DiodeSRD System Requirement DocumentSRE Surveillance Radar Element of GCASRF Servicing and aircraft condition parameters

Reporting FunctionSRI aircraft Structural Repair IdentificationSRKL Structural Repair Kit ListSRKM Structural Repair Kit ManualSRM Structural Repair ManualSRM Supplier Relationship ManagersSRP Safety / Reliability PlanSRPS Safe Redundant Power SupplySRPSU Slide Release Power Supply UnitSRPU Safe Redundant Power UnitSRS Speed Reference SystemSRT SATCOM Receiver TransmitterSRU Shop Replaceable UnitSS Sky/ShadingSSA Side Slip AngleSSA System Safety AssessmentSSA System Safety AnalysisSSALS Simplified Short Approach Light System

SSALSR Simplified Short Approach Light System Runway Alignment

SSB Single Side BandSSC Single Stroke ChimeSSC Supplier Support ConditionsSSCVR Solid State Cockpit Voice RecorderSSEC Static Source Error CorrectionSSFDR Solid State Flight Data RecorderSSG Single Stroke GongSSH Secure SHellSSI Structural Significant ItemSSI System and Structure InstallationSSID Supplemental Structural Inspection Document

SSID Service Set IdentifierSSIP Supplemental Structure Inspection ProgramSSM Sign Status MatrixSSM Solid State MemorySSM Strategic Supplier ManagerSSMM Solid State Mass MemorySSO Single Sign-OnSSP Significant In-Service ProblemsSSP System SpecificationSSP System Signal ProcessorSSPC Solid State Power ControllerSSR Secondary Surveillance RadarSSSV Solid State Stored VoiceSSTDU Side Stick Transducer and Damper UnitSSTU Side Stick Transducer UnitSSU Side Stick UnitSTA StationSTA Straight-in-ApproachSTAB StabilizerSTAR Standard Terminal Arrival RouteSTARTG StartingSTAT StaticSTBY StandbySTC Supplemental Type CertificateSTCS STC holder Controlled SoftwareSTD StandardSTD Standard Data SheetSTDY SteadySTE Secure Terminal EquipmentSTELLA STair Electrical Light Load AdapterSTEP Standard for the Exchange of Product model

dataSTG StageSTGR StringerSTIF StiffenerSTIVC Static Inverter ContactorSTL SteelSTL WARN Stall WarningSTOM System Operation Training ManualSTR SATURNSTRG SteeringSTRK Stroke

STRL StructuralSTRM Secure open and Trip Resident MemorySTRM Short Term Review MeetingSTRUCT StructureSTS StatusSTS Alignment StatusSTS Spares Technical SpecificationSTU Secure Telephone UnitSTWG StowageSTWG Short-Term Working GroupSTYPPLE Sensitive Typical Phone Power LevelSU Safety UnitSUBMUX SubmultiplexerSUCNL ACTN Successional ActionSUCT SuctionSUM SummingSUPPL SupplementarySUPPR SuppressorSUPSD BY Superseded bySURF SurfaceSURV SurveillanceSV ServovalveSVA Stator Vane ActuatorSVCE ServiceSVMTR ServomotorSVO ServoSW SwitchSWLP SideWall Lock PanelSWRD System Wiring Requirement DossierSWRD-A System Wiring Requirements Dossier maturity

ASWRD-B System Wiring Requirements Dossier maturity

BSWRD-C System Wiring Requirements Dossier maturity

CSWTG SwitchingSWY StopwaySyA Systems ArchitectSyCDR System Critical Design ReviewSyCID System Configuration Index DocumentSyCMP System Configuration Management PlanSyCP System Certification PlanSyCR System Certification ReviewSyD System DesignerSyDAL System Development Assurance LevelSyDAS System Development Accomplishment

SummarySYM SymmetrySYNC SynchroSYNC SynchronizeSYN REF Synchro ReferenceSYNTHR SynthetizerSYNTHR SynthesizerSYS SystemT TrimT Turn

T TrueT ThicknessT/C Top of ClimbT/C Type CertificateT/D Top of DescentT/F Track of a Fixed WaypointT/R Thrust ReverserT/TISS Traffic and Terrain Integrated Surveillance

SystemT.O TakeOffT&AD Transport & Aerial DeliveryT2C HP Compressor Inlet TemperatureT2CAS Traffic and Terrain Collision Avoidance System

T54 Low Pressure Turbine Inlet TemperatureTA Traffic AdvisoryTA Twin AisleTA Technical AdaptationTAB Tabulation and Interpolation ProgramTAB Test and Bite PanelTAC Taxiing Aid CameraTAC Technical Acceptance CompletionTAC TACANTACAN Tactical Air NavigationTACH TachometerTACKV Trim Air Check ValveTACS Taxiing Aid Camera SystemTACT TacticalTADB Terrain/Airport DataBaseTADD Trim Air Drive DeviceTAKSY Technisch Administratives Konstruktionssytem

TaMED Tank Modelling on Every DeskTAP Transient Acoustic PropagationTAPRV Trim Air Pressure Regulating ValveTAPS Trim Air Pressure SensorTAR Terminal Area Surveillance RadarTAS True AirspeedTASOV Trim Air Shut Off ValveTAT Total Air TemperatureTAV Trim Air ValveTAWS Terrain Awareness and Warning SystemTB Terminal BlockTBC To Be ConfirmedTBD To be DeterminedTBH Tail Bearing HousingTBO Time Between OverhaulsTBSV Time Between Scheduled VisitsTBU Time Base UnitTBV Transient Bleed ValveTC HP Turbine Case PressureTC Theoretical ContourTC ThermocoupleTC Takeoff ChartsTCA Throttle Control AssyTCAS Traffic Alert and Collision Avoidance System

TCC Thrust Control ComputerTCC Turbine Case CoolingTCC Turbine Clearance ControlTCCS Thrust Control Computer SystemTCDS Type Certificate Data SheetTCFN Two's Complement Fractional NotationTCI Time Controlled ItemTCIU Telephone Communication Interface UnitTCM Thrust Control MalfunctionTCM Technical Coordination MeetingTCP Takeoff Charts Computation ProgramTCP Transmission Control ProtocolTCPS Temperature Compensated Pressure SwitchTCQ Time, Cost and QualityTCS Temperature Control SystemTCS TC holder controlled SoftwareTCSB Transformer Coupled Serial BusTCTL TactileTCU Throttle Control UnitTCV Temperature Control ValveTD Technical DispositionTD Technical DossierTD Time DelayTDB Terrain DataBaseTDC Time Delay ClosingTDCA Technical Data Control AssessmentTDCR Type Design Change RequestTDD Technical Design DirectiveTDD Technical Data DownloadTDF Tool Definition FormTDO Time Delay OpeningTDP Touchdown PointTDS Technical Data SheetTDSC Technical Data Steering CommitteeTDU Technical Description UnitTDU Time Display UnitTDY Temporary DutyTDZL Touchdown Zone LightsTE HP Stage Air TemperatureTE Trailing EdgeTEC Turbine Exhaust CaseTED Tool and Equipment DrawingTEDB Tool and Equipment Data BankTEFO Total Engine Flame OutTEI Tool and Equipment IndexTEL TelephoneTELECOM TelecommunicationsTEM Illustrated Tool and Equipment ManualTEMP TemperatureTEMP Test and Evaluation Master PlanTEO Engine Oil TemperatureTER Trailing Edge RibTER Technical Event ReportTEST SIG Test SignalTF Task ForceTF Tuning File

TFR TransferTFR Trouble and Failure ReportTFTS Terrestrial Flight Telephone SystemTFU Technical Follow-upTGB Transfer GearboxT-GCAS Tactical Ground Collision Avoidance SystemTGCU Terminal GPRS / UMTS Client UnitTGL Touch-and-Go LandingTGT TargetTHD ThreadTHD Total Harmonic DistortionTHERAP TherapeuticTHMS ThermistorTHR ThrustTHRM ThermalTHRMST ThermostatTHROT ThrottleTHROT PUSH Throttle PusherTHS Trimmable Horizontal StabilizerTI Technical InformationTI Technical InstructionTI Track to an InterruptTIA Type Inspection AuthorizationTIC Turbine Impingement CoolingTICC Technical Information and Communication

CommitteeTID Technical Impact DifferenceTID Technical Information DocumentTIFF Tagged Information File FormatTIR Technical Incident ReportTIR Type Inspection ReportTIT Turbine Inlet TemperatureTIU Terminal Interface UnitTIV Temperature Isolation ValveTK TankTK Ground Track AngleTKE Track Angle ErrorTKE Track ErrorTL Tooling ListTL Transmittal LetterTLA Throttle Lever AngleTLAR Top Level Aircraft RequirementTLB Technical Log BookTLC Takeoff and Landing Chart Computation

ProgramTLC TR Line ContactorTLCS Trolley Lift & Conveyance System TLMC Time Limits and Maintenance ChecksTLS Transcowl Locking SystemTLS Trolley Lift SystemTLSRD Top Level System Requirement DocumentTLU Travel Limitation UnitTLV Tertiary Lock ValveTM Torque MotorTM Transportability ManualTM Terminal Module

TM Turbo MachineryTMA Terminal Control AreaTMA Twin Motor ActuatorTMC Target Must CostTMG TimingTMLB Technical and Maintenance LogBookTMLLF Terrain Masking Low Level FlightTMLLFC Terrain Masking Low Level Flight ComputerTMR TimerTN Technical NoteTNSN Tension / Tensioned / Tensioning/ To TensionTo Mean Flight TimeTO TakeoffTO/APPR Takeoff/ApproachTOC Table of ContentsTOD Takeoff DistanceTOD Time of DayTOGA Takeoff/Go AroundTOGW Takeoff Gross WeightTOIL ToiletTOL ToleranceToO Time of OccurenceTOPA TakeOff Performance ApplicationTOPOC TakeOff & landing Performance Optimization

ComputerTOR Takeoff RunTOT TotalTOT Transfer of TitleTOW Takeoff WeightTOW TowingTP Test PointTP Top PlugT-P Turn PointTPA Technical Publications AgreementTPCI Technical Publications Combined IndexTPG Technical Publications GuideTPGG Technical Publications General GuideTPIB Technical Publications Illustration BankTPIC Tire Pressure Indicating ComputerTPIS Tire Pressure Indicating SystemTPMM Technical Publications Management MeetingTPOP Technical Publications Output PlanningTPPP Technical Publications Production PlanningTPR Turbofan Power RatioTPRD Technical Publications Reference DocumentTPS Temporary Protection SystemTPSL Top Product Structure LayoutTPSP Third Party Software ProviderTPU Terminal Processor UnitTPU Transceiver Processing UnitTPWD Technical Publications Work Sharing

DocumentTQWP Total Quality of Work PackagesTR Temporary RevisionTR Thrust ReverserTR Transformer Rectifier

TR TransistorTR Regulated Temperature (Downstream of

precooler)TR Temporary RevisionTR TrussTR Turn RadiusT-R Transmitter-ReceiverTRA Throttle Resolver AngleTRA Test Report AnalysisTRACON Terminal Radar ControlTRANS TransitionTRANSF TransferTRANSLG TranslatingTRC Thrust Rating ComputerTRD Towed Radar DecoyTRDV Thrust Reverser Directional ValveTRF Turbine Rear FrameTRGT TargetTRI Type Rating InstructorTRIG TriggerTRK Track TRLC TRU Line ContactorTRLY TrolleyTRN Terrain Referenced NavigationTROPO TropopauseTRP Thrust Rating PanelTRPU Thrust Reverser Power UnitTRPV Thrust Reverser Pressurizing ValveTRQE TorqueTRQR TorquerTRS Technical Repercussion SheetTRT Turn Round TimeTRTO Type Rating Training OrganisationTRU Transformer Rectifier UnitTRU TrueTRU Transformer/Rectifier UnitTRV TravelTRW Thermal RAS/WedgeTS Trim SheetTSA Throttle Sensor AngleTSD Trouble Shooting DataTSDB Trouble Shooting Data BaseTSE Trouble Shooting ExtractTSF Trouble Shooting FunctionTSFC Thrust Specific Fuel ConsumptionTSH Trouble Shooting HandbookTSI Time Since InstallationTSLSV Time Since Last Shop VisitTSM Trouble Shooting ManualTSM Tactical Situation ManagementTSO Technical Service Order (FAA)TSO Technical Standard OrderTSO Time Since OverhaulTSP Tank Signalling ProcessorTSPA Tank Signal Processor ATSPB Tank Signal Processor B

TSSU Transmission Speed Sensor UnitTST TestTSU Torque Sensor UnitTT Trim TankTT Switching Temperature of HP ValveTT Total TimeT-TAD Tactical Terrain Awareness DisplayTTG Time to GoTTGA Time To Get an AnswerTTGF Time To Get a FixTTL Transistor Transistor LogicTTL Task Team LeaderTTOL Taxi, Takeoff and LandingTTP Time Triggered Protocol busTTR Technical Trouble ReportTTS Trim Tank SystemTU Tapping UnitTURB TurbineTURB TurbulenceTURB TurbulentTURBOT Turbine Overheat DetectorTV TelevisionTVA Tunable Vibration Absorber TVACU Tunable Vibration Absorber Control UnitTVAPS Tunable Vibration Absorber Power SupplyTVAS Tunable Vibration Absorber SystemTVBC Turbine Vane and Blade CoolingTVC Turbine Vane CoolingTVOR Short Range VORTVOR Very High Frequency Terminal Omnirange

StationTW TwistedTWDC Tank Wall Data ConcentratorTWE TAKSY Web EngineTWLU Terminal Wireless LAN UnitTWP Tank Wall ProcessorTWR TowerTWY TaxiwayTX Transmission (TCAS to Transponder)TX TransmitTXW Taxi WeightTYP TypicalTYPPLE Typical Phone Power LevelÚ Pitch AttitudeU/FLOOR UnderfloorU/S UnserviceableUAC Upper Area Control CentreUADF User Application Definition FileUART Universal Asynchronous Receiver TransmitterUCS User Certifiable SoftwareUD Upper DeckUD Document Unit ("Unité Documentaire")UD Uni-Directional TapeUDC Upper Deck CargoUDCC Upper Deck Cargo CompartmentUDCD Upper Deck Cargo Door

UDL Unit Detail ListingUDP User Datagram ProtocolUEB Underseat Electronic BoxUERF Uncontained Engine Rotor FailureUF UnderfrequencyUHF Ultra High FrequencyUICDL User Interface Configuration Download ListUIL Upper Integrity LimitULB Underwater Locator BeaconULD Unit Load DeviceULLI Understep LED LightULM Ultra Low MaintenanceUMBRL UmbrellaUMS User Modifiable SoftwareUMTS Universal Mobile Telecommunications System

UNBAL UnbalanceUNBAL UnbalancedUNCPLG UncouplingUNCRCTD UncorrectedUND UnderUNDERPRESS UnderpressureUNFCCC United Nation Framework Convention on

Climate ChangeUNIV UniversalUNLK UnlockUNLKD UnlockedUNSD UnusedUPLK UplockUPPR UpperUPR UpperUR Utilization RateUS Under SpeedUS United StatesUS UpstreamUSB Universal Serial BusUSB Upper SidebandUTA Upper Control AreaUTC Universal Time CoordinatedUUT Unit Under TestUV Ultra-VioletUV Under VoltageUVEROM Ultra Violet Erasable Read Only MemoryUWBS Universal Wireless Backbone SystemUWF Under Wing FittingUWY Upper AirwayV ValveV VioletV/L VOR/LOCV/L VOR/LocalizerV/S Vertical SpeedV/U Very and Ultra high frequencyV/UHF Very and Ultra High FrequencyV&V Verification & ValidationVAC Voltage Alternating CurrentVACBI Video and Computer-Based Instruction

VACS Vacuum Cleaner SystemVACU VacuumVALDN ValidationVAP Visual Approach ProcedureVAR VariableVAR VariationVAR Visual-Aural Radio RangeVAR LEV HTY Variable Lever HealthyVASIS Visual Approach Slope Indicator SystemVBV Variable Bleed ValveVC Ventilation ControllerVCC Video Control CenterVCI Video Control InsertVCM Video Camera ModuleVCO Voltage Controlled OscillatorVCP Video Control PanelVCRU Vapor Cycle Refrigeration UnitVCS Ventilation Control SystemVCTREND Airspeed TendencyVCU Video Control UnitVD Design Diving SpeedVD Heading to a DME DistanceVD Vertical DisplayVDAR Virtual DARVDC Voltage Direct CurrentVDEV Vertical DeviationVDF Very High Frequency Direction Finding Station

VDOS Vendor Documentation On-line ServiceVDR VHF Data RadioVDU Video Display UnitVDU Video Distribution UnitVEADB Video on demand Enhanced Area Distribution

BoxVEL VelocityVENT VentilationVERT VerticalVERT REV Vertical ReviseVFG Variable Frequency GeneratorVFR Visual Flight RulesVFTO Final Takeoff SpeedVG Vertical GyroVGM Versatile Graphical ModuleVHCU Versatile Heating Control UnitVHDU Versatile Heating Data UnitVHF Very High FrequencyVHV Very High VoltageVIB VibrationVIGV Variable Inlet Guide VaneVIM Vendor Information ManualViMS Video Management SystemVIMU Video Multiplexer UnitVL Virtual LinkVLF Very Low FrequencyVLLDC Very Low Level DC VoltageVLSI Very Large Scale Integrated

VLV ValveVM VoltmeterVMC Visual Meteorological ConditionsVMU Video Modulator UnitVOCs Volatile Organic CompoundsVOD Video On DemandVODDSU VOD Data Server UnitVODMU VOD Modulator UnitVODSU VOD Server UnitVOL VolumeVOR VHF Omnidirectional RangeVOT VoterVOX Voice ActivationVOZC Volatile Organic Compound and Ozone

ConverterVPN Virtual Private NetworkVPSA Vendor Product Support AgreementVPU Video Processing UnitVQAR Virtual QARVR Rotation SpeedVR Voltage RegulatorVRU Video Reproducer UnitVSB Vendor Service BulletinVSBN Vendor Service Bulletin NumberVSBT Vendor Service Bulletin TitleVSC Vacuum System ControllerVSCF Variable Speed Constant FrequencyVSCU Video System Control UnitVSD Vertical Situation DisplayVSEB Video Seat Electronic BoxVSI Vertical Speed IndicatorVS-NfD Verschlusssache - Nur für den Dienstgebrauch

(German equivalent to NATO restricted).

VSV Variable Stator VaneVSVA Variable Stator Vane ActuatorVSWR Voltage Standing Wave RatioVT Vertical TailVTP Vertical Tail PlaneVTR Video Tape ReproducerVTS Vacuum Toilet SystemVV Velocity VectorVWM Vendor Warranty ManualW WestW WhiteW WeightW WireW/O Work OrderW/V Wind Direction and SpeedW3C World Wide Web ConsortiumWA Wind AngleWABSIC Wheel And Brake System Integrated

ComponentWACC Weighted Average Cost of CapitalWACS Wireless Airport Communication SystemWAI Wing Anti-Ice

WAP Wireless Access PointWARN WarningWASG World Airlines and Suppliers GuideWATOG World Airlines Technical Operations Glossary

WB Wide BodyWBA Weight and Balance ApplicationWBBC Weight and Balance Backup ComputationWBC Weight & Balance ComputerWBM Weight and Balance ManualWBS Weight and Balance SystemWBS Work Breakdown StructureWC Wording ChangeWCR Weight and Balance Compliance ReportWD Warning DisplayWD Wing DatumWD Wiring DiagramWDB Wall Disconnect BoxWDI Wind Direction IndicatorWDM Wiring Diagram ManualWDO WindowWEL Wall Emergency LightWFOV Wide Field of ViewWG WingWG Wave GuideWG Working GroupWGD Windshield Guidance DisplayWGDC Windshield Guidance Display ComputerWGDS Windshield Guidance Display SystemWGL Wireless Ground LinkWHC Window Heat ComputerWHL WheelWINDML WindmillingWIP Wing Ice ProtectionWIPCU Water Ice Protection Control UnitWIPDU Water Ice Protection Data UnitWIPS Wing Ice Protection SystemWIRC Warning - Inhibition - Recall - ClearWIS Wireless Intercommunication SystemWLAN Wireless Local Area NetworkWLC Wing Lower CoverWLDP Warning Light Display PanelWLG Wing Landing GearWLM Wireless LAN ManagerWLP Weight Limited PayloadWLU Wireless LAN UnitWM WattmeterWM Wiring ManualWMEL Wall Mounted Emergency LightWO Wash-outWOD Word Of the DayWOJ Weight on JacksWOR Wear Out RateWOW Weight On WheelsWP Work PackageWPS Workpackage Specification

WPT WaypointWPU Wireless Portable UnitWPV Water Pulse ValveWR Weather RadarWR Weighing ReportWRDC Wheel Remote Data ConcentratorWRG WiringWRK WorkWRK WorkingWS Wind SpeedWSC Window Shade ControllerWSCP Warning and System Control PanelWSCS Wheel Steering Control SystemWSDP Warning and System DisplayWSHLD WindshieldWSR Weekly Service ReportWSSG Warning System Symbol GeneratorWT WeightWTB Wing tip brakeWTR WaterWUC Work Unit CostWUC Wing Upper CoverWWS Water/Waste SystemWX Weather Mode (ND)WXR Weather RadarX CrossX TransXARM Cross ArmXBAR CrossbarX BLEED CrossbleedXCHECK CrosscheckXCVR TransceiverXDCR TransducerX FEED CrossfeedXFMR TransformerXFR TransferXING CrossingX LINE CrosslineXLOAD CrossloadXLTR TranslatorXML Extensible Mark-up LanguageXMSN TransmissionXMTR TransmitterXPDR TransponderXPNDR TransponderXREF CrossreferenceXSEC Extra SectionXT Reception (Transponder to TCAS)XTAL CrystalX-TALK Cross-talkXTK Cross Track DeviationXTK Cross Track DistanceXTK Cross Track ErrorX VALVE Cross ValveXWIND CrosswindY Yellow

Y/C Economy ClassYC Tourist ClassYCF Economy Class-FrontYCL Economy Class FrontYCR Economy Class-RearYE YearYES Yankee Escape SystemYTPPP Yearly Technical Publications Processing

PlanningZ Greenwich Mean TimeZ ZoneZAPDI Zonal Access Panel and Door IdentificationZC Zone ControllerZFCG Zero Fuel Center of GravityZFW Zero Fuel WeightZSA Zonal Safety Analysis