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Global Training Center

2018

Maintenance ProgramsTLMC MPD Familiarization

PRIVATE AND CONFIDENTIAL. © Bombardier Inc. or its subsidiaries. All rights reserved.

Agenda

1. Scheduled Maintenance Manual Overview

2. MRB Process – Sustaining

3. TLMC Format

4. Available Internal Extension’s

5. Flexible Maintenance vs Task Tolerance

6. Customized Maintenance Programs

3 PRIVATE AND CONFIDENTIAL. © Bombardier Inc. or its subsidiaries. All rights reserved.3

TLMC Overview


Approvals of TLMC/MPD/STLMC Manuals

1. Time Limits / Maintenance Checks (TLMC)• Approved by Transport Canada (TC), FAA and EASA

2. Maintenance Planning Document (MPD)• Not Approved, therefore it is not a requirements document

3. Completion Maintenance Program (STL/MC)• Approved by Local Authority of STC Holder• Each STC may have a separate STLMC

TLMC is the only approved manual, the MPD contains all tasks from the TLMC

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Time Limits/Maintenance Checks - Overview

All maintenance tasks are approved

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Part 1General

Part 2Airworthiness

Limitations

Part 3Maintenance

ReviewBoard Report

(MRBR)

• Scope/Description/Definitions/Acronyms

Approved by TC - Aircraft Certification Office (ACO)• Life Limits - Systems and Structures (excluding Engines)• Airworthiness Limitation Items (ALI)• Certification Maintenance Requirements (CMR)• Tasks by Aircraft Effectively - Custom Installations/Repairs• RVSM

Approved by TC/FAA/EASA - Maintenance ReviewBoard (MRB)• Avionics, Systems, Propulsion, Structures, Zonal and

Lightning/High Intensity Radiated Fields (L/HIRF)


Maintenance Not Found in TLMC / MPD

Not all maintenance required to be complied with byindividual operators is found in the TLMC:Examples of Maintenance not found in TLMC / MPD:

National requirements• Requirements from country to country vary, and would be impossible to ensure the

latest requirements are listed in the TLMC

Vendor/OEM Recommended Maintenance• Vendor manuals are reviewed during MSG-3 process and only tasks accepted by

ISC are recommended to MRB for inclusion in the TLMC• Maintenance from a OEM manual may be required by the OEM if an operators is

following an OEM warranty program

Service Bulletin Maintenance Recommendations• Required maintenance until a specific condition is met

Unscheduled Maintenance ie: Inspections after Hard Landing, Lightning Strike etc• Refer to: AMM Chapter 5

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1. ISC: Industry Steering Committee: Group of operators that review changes to the Maintenance Review Board Report (MRBR) (TLMC Part 3)2. MRB: Maintenance Review Board: Representatives of Transport Canada, FAA & EASA3. OEM: Original Equipment Manufacturer


CDCCL Defined

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CRITICAL DESIGN CONFIGURATION CONTROL LIMITATIONS

Critical design features that must be maintained in exactly the samemanner throughout the life of the aircraft in order to comply with thetype certificate and maintain airworthiness

CDCCL instructions ensure critical features are present throughoutthe life of the aircraft and are Inspected and verified whenalterations, repairs or maintenance actions occur in the area

CDCCL Design features defined and controlled by Special FederalAviation Regulation 88 (SFAR) preserves critical features neededfor Flammability Reduction Means


CDCCL and EWIS Maintenance

Maintenance related to CDCCL (SFAR 88) andElectrical Wiring Interconnect System (EWIS)

Applies to transport category, turbine-powered aircraft where thetype certificate (TC) was issued after January 1, 1958 and has:

• A maximum type-certificated passenger capacity of 30 or moreAnd / Or

• A maximum type-certificated payload capacity of 7500 pounds ormore

Global Express / XRS / G6000 / G5000 / GV5000are not required to be CDCCL or EWIS Compliant

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Maintenance Planning Document (MPD)

MPD packages tasks by interval, provides various maintenance approaches

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Section 1Introduction

• Introduction• Program Rules• Master Task List

Section 2Task Planning

Section 3Optional

MaintenanceSection 4Flexible

MaintenanceSection 5Equalized

Maint Program

• List of tasks by Interval Type (Hour, Month, Landing)• List of tasks by each Interval (500 H, 15 M, 7500 L)

• Walk-Around• Servicing

• Program Rules

• Program Rules


TLMC – MPD- AMM/NDI Relationship

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EngineeringReports

Life Limits(Systems)

Life Limits(Structures)

AirworthinessLimitations

CertificationMaintenanceRequirements

MSG-3Analyses

MaintenanceReview Board

Report

TLMCSource MPD AMM / NDI

Tasks byInterval

AMTOSS / NDIX-Ref

OptionalMaintenance

FlexibleMaintenance

EqualizedMaintenance

Procedures


Industry Steering Committee


MRB Sustaining Process

Process typically takes 9-12 months

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1. Process typically takes 9-12 months

ReceivesChangeRequest

ReviewChange

DetermineAnalyses

to beChanged

CompleteAnalyses

PresentChange

ISC AcceptChange

AuthorMRBR

ChangeMRB

ApprovesChange

Industry Steering Committee (ISC) Format

Industry Steering Committee (ISC) participants:• Operators• Regulatory Authorities (TC, FAA, EASA)• Vendors• Bombardier

Operator Participation in ISC Meetings

• Operator participation is required• Ideally 6 to 8 operators

• One or Two face-to-face meetings per year• Typically in April and/or October

• Guests are welcome

• Contact Bombardier for meeting information

[email protected]


TLMC Format


Chapter 5 Task Numbering Formats

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Task format XX−XX−XX−YZZ where :• XX−XX−XX is the ATA number• ZZ is the task sequential number identifier 01 to 99• Y is as follows:

1ZZ* (one star) or 1ZZ**: (two star)Mandatory ALI or CMR Task

2ZZ:MRB Task from MSG3 Analysis

3ZZ:Optional Task

4ZZ:Repair or Modification

6ZZNon-Production Equipment and Furnishings (Completion STC Tasks)

Task format XX−ZL−00−2ZZ where:

ZL indicates a Zonal task


1ZZ* Star & 2ZZ** Star TasksDifferences between a 1 star (*) and 2 star (**) task:• 1 star (*) - ALI &/or CMR

• Tasks and/or Intervals:• Are Mandatory• Cannot be changed, escalated or deleted without approval of :

• Transport Canada - Aircraft Certification Office (ACO)• Foreign Airworthiness Authority ACO

• 2 star (**) - CMR• Tasks

• Are Mandatory• Cannot be changed or deleted with out the prior approval of:

• Local Airworthiness Authority’s ACO

• Intervals• May be adjusted in accordance with:

• Operators approved escalation practice or• Approved reliability program

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Dual Intervals

TLMC Part 3, 5-21-00

4. Tasks and Intervals Table FormatF. Column 6 Column number 6 shows the intervals for the task.

If two intervals are shown, for example “1000 H or 60 M”, the task must bedone at whichever interval occurs first. The task is repeated from whicheverinterval occurs first, from the last time the task was done.

Dual Interval tasks must be complied with at the interval that occurs first

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CCMR Limitations

Candidate Certification Maintenance Requirements (CCMR)Limitations

Some MRB tasks also cover a CCMR• These tasks are included in the MRBR (TLMC Part 3)• They are not separately identified, all are 200 series tasks• The maximum CCMR interval governs the maximum MRB task interval

New Section 5-10-41 to be introduced in 2019• Lists all the MRB tasks that is a CCMR and the maximum interval

Operators to familiarize themselves with the MRB tasks that covera CCMR and the maximum interval of these tasks

CCMR tasks have a maximum interval that should not be exceeded

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CCMR Limitations

Regulatory Agencies now require that OEM’s provide visibility on theinterval limitation of Candidate Certification Maintenance Requirements(CCMR) covered in the MRBR.

TLMC Section 5-10-41, CCMR Limitations table excerpt:

To be introduced in 2019

NEW CCMR SECTION 5-10-41

Table 1CCMR Limitation

SourceDocument Ref .No. CCMR Interval

LimitationChapter 5 Task

NumberRBR-G700-013 7.1.1.7, 7.1.1.12 3100 H 21-21-17-201

RBR-K700-131 7.1.1.14 30000 H 26-12-00-201

RBR-K700-131 7.1.1.8, 7.1.1.17 5750 H 26-21-00-201

RBR-C700-107 7.1.1.1 1000 H / 12 M 30-41-00-202

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PRIVATE AND CONFIDENTIAL. © Bombardier Inc. or its subsidiaries. All rights reserved.21

Extension’s


ALI & CMR Extension

ALI & CMR Tasks, TLMC § 5-10-30/5-10-40

Plan ahead, extensions are costly, take time to process and obtain approval

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100 Series Tasks 1 Star (*) 2 Star (**)Extension Published Yes - Not for all Task Yes - Short term

Extension Available Yes -ACO Approval Yes

How Raise SRPSA Raise SRPSA

Lead time ALI (including ALI from BA STC)• 5 working days

CMR ¤• 15 working days

ALI• 5 working days

CMR ¤• 15 working days

“Bad planning on your part does not constitute an emergency on my part.”

¤ Authorities are strict on providing extensions on CMR tasks.Per operators approved escalation practices or an approved reliability program


Tasks with a “Component” Interval

COMPONENT Interval• Interval may be calculated from:

• Installed Date• Date noted in the component’s certification documentation• As specified on component (Stamped / Inked)• Or as otherwise stated

Take Away: Component Intervals differ from Airframe Intervals

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MRB & Engine Task Extensions• MRB & Engine Tasks

• MPD: refer to TLMC 5-21-10• Engine: Refer to Engine Service Manual

• Engine Life Limit Components• Contact Engine OEM or FSR

• MRB & Engine Extension Requests• Raise SRPSA• Reviewed on a case-by-case basis• May require local regulatory authority approval

• Lead Time:• MRB: 5 working days• Engine: Per Engine OEM

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Flexible Maintenance vs Task Tolerance


Flexible Maintenance Program

Requirements to use the Flexible Maintenance ProgramFAR 91 Operators

• Update logbook to note that Flex Maintenance rules are being followed

For all other operators• Apply to your local authority• May be subject to national / local regulatory approval

Also: Notify your Computerized Maintenance Management Systemanalyst

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Allowable Tolerance vs Flexible Maintenance

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ALI CMRMRB (Inc. Engine/APU)

Completion< 500 H or15 M

> 500 H or15 M

AllowableTolerance No

YesNoted per

task

Yes10% of

publishedinterval

± 50 H± 3 M± 50 L

Same asMRB

FlexibleMaintenance No

YesNoted per

task

Yes10% of

publishedinterval

± 50 H± 3 M± 50 L

Same asMRB

Flexible Maintenance:• Program by which maintenance is spread out over 100 H (± 50 H) 6 M, or 100 L, as

applicable

Allowable Tolerance:• Provides a one-off opportunity to schedule one or more tasks or inspections without

requesting an extension and maintain the alignment of interval multiples


Flex and Task Tolerance: Early compliance

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For any task(s) done before the scheduled maintenance ‘window’ opens, anew ‘window’ will need to be established for the next due of the task(s)

Example: A 1000 H task due at 2000 H is completed at 1800 H or 150 H beforethe window opened at 1950 H

The next time this task is due will be at 2850 H ± 50 H

1000 H

Inspection doneat 1800 H

150 H

Inspection Dueat 2000 H

+/- 50 H

1950 H 2050 H

1000 H

Next InspectionDue at 2850

2800 H 2900 H

+/- 50 H

3000 H

+/- 50 H


Flexible Maintenance Program

Provided for operators who have in-house maintenance teams

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Provides Window to complete maintenance• Keep maintenance packages ‘in-phase’

Maint Due

+2 M-2 M

Task 1 Task 3Task 2

Last task - signoff packagehere

+3 M-3 M


Customized Maintenance Programs


Customized Maintenance Programs

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Converts all MRB Tasks to Monthly IntervalSome tasks will be done fewer times in a calendar year

Available Customized Maintenance Programs• Very High Utilization Maintenance Program (VHUMP)• High Utilization Maintenance Program (HUMP)• Low Utilization Maintenance Program (LUMP)• Equalized Maintenance Program (EMP)

Raise an SRPSA for Customized ProgramKey word: HUMP or LUMP as applicable


Equalized Maintenance Program

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EMP provides the following benefits:• Distributes scheduled maintenance tasks in smaller allocations

thereby improving aircraft availability

• Includes hourly and monthly Maintenance Review Board (MRB)Report tasks (Section 5−20), up to 3000 H and 30 M

• Tasks can be accomplished one at a time or in groups

• Designed to preserve aircraft reliability and ensure continuedairworthiness and safe aircraft operation

Rules:• May require Phase-In for in-service aircraft• May be subject to national and/or local regulatory approval


Equalized Maintenance Program (cont)

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Exclusions:

Airworthiness Limitations• ALI, CMR, Life Limits and RVSM• Completion Maintenance in STLMC

MRB Tasks• ≥ 3000 Hr or ≥ 30 M• Out-of-phase• Special Requirements such as National Regulations• Interval is in Engine or APU Time (Hours/Landings)

Maintenance from Airworthiness Directives (AD)

National Requirements


Maintenance Programs Contact Info

For any questions or clarifications please send anemail to :

[email protected]

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