ATR-42 List of MFC codes

ATR 42 / ATR 72

MFC Avionics and Simulation Products

- TOULOUSE -

For Training Purpose Only

LINE MAINTENANCE 5-15MFC - 01B / September 2004

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5.5 LIST OF MAINTENANCE DATA (BITE CODES)

SYS: WOW & L/G CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F RIGHT MAIN GEAR PRIM. DNLK PROX SWITCH FAIL: 8 GA

UNLK (red)

2 F NOSE GEAR PRIM. DNLK PROX SWITCH FAIL: 9 GA UNLK (red) 3 F F LEFT MAIN GEAR PRIM. DNLK PROX SWITCH FAIL:

7 GA UNLK (red)

4 F RIGHT MAIN GEAR SEC. DNLK PROX SWITCH FAIL: 10 GB

UNLK (red)

5 F F NOSE GEAR SEC. DNLK PROX SWITCH FAIL: 12 GB UNLK (red) 6 F F LEFT MAIN GEAR SEC. DNLK PROX SWITCH FAIL: 11 GB UNLK (red) 7 F F F LEFT MAIN GEAR WOW 1 PROX SWITCH FAIL : 50 GB 8 F MAIN GEAR WOW 1 PROX SWITCH FAIL : 53 GB 9 F F RIGHT MAIN GEAR WOW 1 PROX SWITCH FAIL : 54 GB A F F LEFT MAIN GEAR WOW 2 PROX SWITCH FAIL : 51 GB B F F F MAIN GEAR WOW 2 PROX SWITCH FAIL : 52 GB C F F RIGHT MAIN GEAR WOW 2 PROX SWITCH FAIL : 55 GB D F F F E F F F

SYS: DOORS CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F LEFT FWD DOOR UNLOCK PROX SWITCH 1 FAIL: 41 WS

DOOR SC UNLK

2 F LEFT FWD DOOR UNLOCK PROX SWITCH 2 FAIL: 43 WS

DOOR SC UNLK

3 F F LEFT AFT DOOR UNLOCK PROX SWITCH 1 FAIL: 55 WS

DOOR SC UNLK

4 F LEFT AFT DOOR UNLOCK PROX SWITCH 2 FAIL: 57 WS

DOOR SC UNLK

5 F F RIGHT FWD DOOR UNLOCK PROX SWITCH 1 FAIL: 54 WS

DOOR SC UNLK

6 F F RIGHT FWD DOOR UNLOCK PROX SWITCH 2 FAIL: 56 WS

DOOR SC UNLK

7 F F F RIGHT AFT DOOR UNLOCK PROX SWITCH 1 FAIL: 58 WS

DOOR SC UNLK

8 F RIGHT AFT DOOR UNLOCK PROX SWITCH 2 FAIL: 60 WS

DOOR SC UNLK

9 F F ST3 EMERGENCY HATCH PROX SWITCH FAIL: 38 WS DOOR SC UNLK A F F ST3 CARGO DOOR HOOKS ENGAGED MAING IND: 18,

19, 20 MP DOOR SC UNLK

B F F F ST3 CARGO DOOR LATLK LOCKED MAINT IND: 22 MP DOOR SC UNLK C F F ST3 CARGO DOOR HOOKS DISENGAGED MAING IND:

15, 16, 17 MP

D F F F EMERGENCY HATCH PROX SWITCH FAIL: 38 WS DOOR SC UNLK E F F F

SYS: BOOTS CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F LEFT ENGINE BOOT A FAULT ANTI-ICE SC FAULT 2 F RIGHT ENGINE BOOT A FAULT ANTI-ICE SC FAULT 3 F F LEFT ENGINE BOOT B FAULT ANTI-ICE SC FAULT 4 F RIGHT ENGINE BOOT B FAULT ANTI-ICE SC FAULT 5 F F LEFT WING BOOT A FAULT ANTI-ICE SC FAULT 6 F F RIGHT WING BOOT A FAULT ANTI-ICE SC FAULT 7 F F F LEFT WING BOOT B FAULT ANTI-ICE SC FAULT 8 F RIGHT WING BOOT B FAULT ANTI-ICE SC FAULT 9 F F LEFT MEDIAN WING BOOT A FAULT ANTI-ICE SC FAULT A F F RIGHT MEDIAN WING BOOT A FAULT ANTI-ICE SC FAULT B F F F LEFT MEDIAN WING BOOT B FAULT ANTI-ICE SC FAULT C F F RIGHT MEDIAN WING BOOT B FAULT D F F F EMPENNAGE BOOT A FAULT (Lx)/LEFT EMPENNAGE

BOOT A FAULT (Sx) ANTI-ICE SC FAULT

E F F F EMPENNAGE BOOT B FAULT (Lx)/LEFT EMPENNAGE BOOT B FAULT (Sx)

ANTI-ICE SC FAULT

ATR 42 / ATR 72


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SYS: NAVIGATION CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F AHRS 1 OVERHEAT: 1 FP 1 2 F AHRS 2 OVERHEAT: 1 FP 2 3 F F AHRS 3 OVERHEAT: 1 FP 3 4 F EADI 1 OVERHEAT: 101 FN 1 5 F F EADI 2 OVERHEAT: 101 FN 2 6 F F EHSI 1 OVERHEAT: 100 FN 1 7 F F F EHSI 2 OVERHEAT: 100 FN 2 8 F FMS OVERHEAT 9 F F SGU 1 OVERHEAT: 105 FN 1 A F F SGU 2 OVERHEAT: 105 FN 2 B F F F AFCS ANOMALY: 1 CA C F F D F F F E F F F

SYS: BRAKE CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F LEFT INBOARD BRAKE OVERHEAT: 41 GG WHEELS SC HOT 2 F LEFT OUTBOARD BRAKE OVERHEAT: 39 GG WHEELS SC HOT 3 F F RIGHT INBOARD BRAKE OVERHEAT: 40 GG WHEELS SC HOT 4 F RIGHT OUTBOARD BRAKE OVERHEAT: 38 GG WHEELS SC HOT 5 F F LEFT INBOARD TRANSMITTER POWER LOSS/OUTPUT

OPEN: 37 GG

6 F F LEFT OUTBOARD TRANSMITTER POWER LOSS/OUTPUT OPEN: 35 GG

7 F F F RIGHT INBOARD TRANSMITTER POWER LOSS/OUTPUT OPEN: 36 GG

8 F RIGHT OUTBOARD TRANSMITTER POWER LOSS/OUTPUT OPEN: 34 GG

9 F F LEFT INBOARD SENSOR/TRANSMITTER TEST FAIL: 41 GG

A F F LEFT OUTBOARD SENSOR/TRANSMITTER TEST FAIL: 39 GG

B F F F RIGHT INBOARD SENSOR/TRANSMITTER TEST FAIL: 40 GG

C F F RIGHT OUTBOARD SENSOR/TRANSMITTER TEST FAIL: 38 GG

D F F F E F F F

SYS: FLT CONTROL CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F TORQUE 1 FAULT (L5X ONLY): 3 EP 2 F TORQUE 2 FAULT (L5X ONLY): 4 EP 3 F F RAD ALT < 500 ft AND IAS 1 > 185 KTS: 1 SA, 1 FC 1 FLT CTL SC FAULT SP 4 F RAD ALT < 500 ft AND IAS 2 > 185 KTS: 1 SA, 1 FC 2 FLT CTL SC FAULT SP 5 F F RAD ALT > 500 ft AND AIRCRAFT ON GROUND IN 1B: 1

SA WOW 1/2

6 F F RAD ALT > 500 ft AND AIRCRAFT ON GROUND IN 2B: 1 SA WOW 1/2

7 F F F 8 F TRIM DIRECTION FAULT: 6 CG 9 F F FLAPS POSITION SWITCH FAULT: 8 CU A F F B F F F C F F STICK PUSHER: LEFT ALPHA PROBE DISAGREE: 19 FU D F F F STICK PUSHER: RIGHT ALPHA PROBE DISAGREE: 20

FU

E F F F

ATR 42 / ATR 72


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SYS: MISC 1 CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F AIR BLEED: LEFT HP VALVE MAINT INDICATION 2 F AIR BLEED: RIGHT HP VALVE MAINT INDICATION 3 F F ELEC. LEFT OPEN WIRE MAINT IND ON 23 PU ELEC (on gnd) SC FAULT (gnd) 4 F ELEC. RIGHT OPEN WIRE MAINT IND ON 23 PU ELEC (on gnd) SC FAULT (gnd) 5 F F ELEC: SVCE/UTIL CNTOR FAULT MAINT IND: 29 PU,

30 PU OR 10 PX

6 F F AIR COND: LEFT PACK MAINT OVERHEAT IND: 17 HB AIR SC FAULT 7 F F F AIR COND: RIGHT PACK MAINT OVERHEAT IND: 18

HB AIR SC FAULT

8 F ANTI-ICE: LEFT MAIN WINDSHIELD CTL OPEN FAIL SIGNAL

9 F F ANTI-ICE: RIGHT MAIN WINDSHIELD CTL OPEN FAIL SIGNAL

A F F FWD EXTINGUISHER SQUIB: 12 WM B F F F AFT EXTINGUISHER SQUIB: 24 WM C F F D F F F E F F F


1 F ELEC: STBY CONTACTOR DEFAULT: 4 PD 2 F 3 F F COM: FDAU MEMORY FULL: 1 TU 4 F QUICK ACCESS RECORDER FULL: 167 TU 5 F F ENGINE 1 FEEDER JET PUMP FAULT: 15 QA 6 F F ENGINE 2 FEEDER JET PUMP FAULT: 16 QA 7 F F F EEC 1 FAULT LATCH ENG SC FAULT 8 F EEC 2 FAULT LATCH ENG SC FAULT 9 F F 'AY' OPTIONAL BOOTS A FAULT ANTI-ICE SC FAULT A F F 'AY' OPTIONAL BOOTS B FAULT ANTI-ICE SC FAULT B F F F C F F PROP BRAKE: SWITCHES DISAGREE: 1 KY D F F F ANTI-ICE: LEFT PROPELLER HEATHER FAULT ANTI-ICE SC FAULT E F F F ANTI-ICE: RIGHT PROPELLER HEATHER FAULT ANTI-ICE SC FAULT


1 F 2 F 3 F F 4 F 5 F F 6 F F 7 F F F 8 F 9 F F A F F B F F F C F F D F F F E F F F

ATR 42 / ATR 72


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SYS: MFC CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F 2 F 3 F F BITE MFC: MODULE 1A SYNCHRO FAIL 4 F BITE MFC: MODULE 1B SYNCHRO FAIL 5 F F BITE MFC: MODULE 2A SYNCHRO FAIL 6 F F BITE MFC: MODULE 2B SYNCHRO FAIL 7 F F F BITE MFC: MODULE 1A RESISTOR INPUT FAIL 8 F BITE MFC: MODULE 1B RESISTOR INPUT FAIL 9 F F BITE MFC: MODULE 2A RESISTOR INPUT FAIL A F F BITE MFC: MODULE 2B RESISTOR INPUT FAIL B F F F BITE MFC: MODULE 1A OUTPUT FAIL C F F BITE MFC: MODULE 1B OUTPUT FAIL D F F F BITE MFC: MODULE 2A OUTPUT FAIL E F F F BITE MFC: MODULE 2B OUTPUT FAIL

SYS: FLT CONTROL CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F TORQUE 1 FAULT: 3 EP 2 F TORQUE 2 FAULT: 4 EP 3 F F RAD ALT < 500 ft AND IAS 1 > 185 KTS: 1 SA, 1 FC 1 FLT CTL SC FAULT SP 4 F RAD ALT < 500 ft AND IAS 2 > 185 KTS: 1 SA, 1 FC 2 FLT CTL SC FAULT SP 5 F F RAD ALT > 500 ft AND AIRCRAFT ON GROUND IN 1B

(WOW 1)

6 F F RAD ALT > 500 ft AND AIRCRAFT ON GROUND IN 2B (WOW 2)

7 F F F SPRING TAB PIN PROG NOT GROUNDED (1B) (S4) FLT CTL SC ALL LOCK 8 F TRIM DIRECTION FAULT: 6 CG 9 F F FLAPS POSITION SWITCH FAULT: 8 CU A F F SPRING TAB PIN PROG NOT GROUNDED (2B) (S4) FLT CTL SC ALL LOCK B F F F C F F STICK PUSHER: LEFT ALPHA PROBE DISAGREE: 19 FU D F F F STICK PUSHER: RIGHT ALPHA PROBE DISAGREE: 20

FU

E F F F SYS: MISC 1 CODE 8 4 2 1 DEFINITION CAP IND. SOUND LOCAL IND.

1 F AIR BLEED: LEFT HP VALVE MAINT INDICATION 2 F AIR BLEED: RIGHT HP VALVE MAINT INDICATION 3 F F ELEC. LEFT OPEN WIRE MAINT IND ON 23 PU ELEC (on gnd) SC FAULT (gnd) 4 F ELEC. RIGHT OPEN WIRE MAINT IND ON 23 PU ELEC (on gnd) SC FAULT (gnd) 5 F F ELEC: SVCE/UTIL CNTOR FAULT MAINT IND: 29 PU, 30

PU OR 10 PX

6 F F AIR COND: LEFT PACK MAINT OVERHEAT IND: 11 DG AIR SC FAULT 7 F F F AIR COND: RIGHT PACK MAINT OVERHEAT IND: 12 DG AIR SC FAULT 8 F ANTI-ICE: LEFT MAIN WINDSHIELD CTL OPEN FAIL

SIGNAL ANTI-ICE FAULT

9 F F ANTI-ICE: RIGHT MAIN WINDSHIELD CTL OPEN FAIL SIGNAL

ANTI-ICE FAULT

A F F FWD EXTINGUISHER SQUIB: 12 WM B F F F AFT EXTINGUISHER SQUIB: 24 WM C F F AUX AFT CARGO EXTINGUISHER 2 FAILED D F F F ADC 1 OR ADC 1 AND 2 SWITCHES DISAGREE: 1 FL 1 ANTI-ICE SC FAULT E F F F ADC 2 OR ADC 2 AND 1 SWITCHES DISAGREE: 1 FL 2 ANTI-ICE SC FAULT

ATR 42 / ATR 72


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1 F ELEC: STBY CONTACTOR DEFAULT: 4 PD 2 F ANTI-ICE: AUTO MODE SWITCHES DISAGREE ANTI-ICE SC FAULT 3 F F COM: FDAU MEMORY FULL: 1 TU 4 F QUICK ACCESS RECORDER FULL: 167 TU 5 F F ENGINE 1 FEEDER JET PUMP FAULT: 15 QA 6 F F ENGINE 2 FEEDER JET PUMP FAULT: 16 QA 7 F F F EEC 1 FAULT LATCH ENG SC FAULT 8 F EEC 2 FAULT LATCH ENG SC FAULT 9 F F OPTIONAL BOOTS A FAULT (FIN) ANTI-ICE SC FAULT A F F OPTIONAL BOOTS B FAULT (FIN) ANTI-ICE SC FAULT B F F F C F F PROP BRAKE: SWITCHES DISAGREE: 14 KY D F F F ANTI-ICE: LEFT PROPELLER HEATHER FAULT ANTI-ICE SC FAULT E F F F ANTI-ICE: RIGHT PROPELLER HEATHER FAULT ANTI-ICE SC FAULT


1 F MODULE 1A PINPROG DISAGREE MFC SC FAULT 2 F MODULE 1B PINPROG DISAGREE MFC SC FAULT 3 F F MODULE 2A PINPROG DISAGREE MFC SC FAULT 4 F MODULE 2B PINPROG DISAGREE MFC SC FAULT 5 F F MODULE 1A PINPROG ACQUISITION FAULT MFC SC FAULT 6 F F MODULE 1B PINPROG ACQUISITION FAULT MFC SC FAULT 7 F F F MODULE 2A PINPROG ACQUISITION FAULT MFC SC FAULT 8 F MODULE 2B PINPROG ACQUISITION FAULT MFC SC FAULT 9 F F ACTIVE NOISE CONTROL SYSTEM OPERATIVE

FAULT (S3) / AIRCRAFT VERSION FLT (S4) MFC (S4) SC (S4) FAULT (S4)

A F F ACTIVE NOISE CONTROL SYSTEM INOPERATIVE FAULT (S3) / MFC COMPATIBILITY FLT (S4)

MFC (S4) SC (S4) FAULT (S4)

B F F F RIGHT EMPENNAGE BOOT A FAULT (S3) / MFC MIXABILITY FLT (S4)

ANTI-ICE / MFC

SC FAULT

C F F RIGHT EMPENNAGE BOOT B FAULT (S3) ANTI-ICE (S3) SC (S3) FAULT (S3) D F F F PROPELLER TYPE DISAGREE ANTI-ICING SC FAULT E F F F UNKNOW PROPELLER TYPE ANTI-ICING SC FAULT


1 F PROPELLER ELECTRONIC CONTROL 1 FAILURE: 50 KH 2 F PROPELLER INTERFACE UNIT 1 FAILURE: 95 KH 3 F F PROPELLER ELECTRONIC CONTROL 2 FAILURE: 50 KH 4 F PROPELLER INTERFACE UNIT 2 FAILURE: 96 KH 5 F F ACTIVE NOISE CONTROL SYSTEM OPERATIVE FAULT

(S4)

6 F F ACTIVE NOISE CONTROL SYSTEM INOPERATIVE FAULT (S4)

7 F F F RIGHT EMPENNAGE BOOT A FAULT (S4) ANTI-ICE SC FAULT 8 F RIGHT EMPENNAGE BOOT B FAULT (S4) ANTI-ICE SC FAULT 9 F F A F F B F F F C F F D F F F E F F F

ATR 42 / ATR 72


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WOW & L/G

WOW & L/G CODE 1 Wording: MFC1B: RIGHT GEAR PRI DOWN-LOCL PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED

WIRING Details: Disconnect prox. sw. connection 8GAA and connect it to another prox. sw. in target near condition:

- if fault disappears (after MFC BITE memory reset), replace prox. sw. 8GA; - if fault persists, switch off MFC1B:

then if UNLK persists check wiring between prox. sw. 8GA and ground point and relay 9GB (energized); if UNLK disappears and DNLK appears instead, switch MFC1B back on and verify wiring integrity between MFC1B and relay 9GB (de-energized).

Alerts: UNLK (red) on 4 VU. WOW & L/G CODE 2 Wording: MFC1B: NOSE GEAR PRI DOWN-LOCK PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED




Alerts: UNLK (red) on 4 VU. WOW & L/G CODE 3 Wording: MFC1B: LEFT GEAR PRI DOWN-LOCK PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED




Alerts: UNLK (red) on 4 VU. WOW & L/G CODE 4 Wording: MFC2B: RIGHT GEAR SEC DOWN-LOCK PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED

WIRING Details: Disconnect prox. sw. connection 10GBA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 10GBA; - if fault persists, verify wiring integrity between prox. switch & MFC2B.

Alerts: UNLK (red) on 25 VU. WOW & L/G CODE 5 Wording: MFC2B: NOSE GEAR SEC DOWN-LOCK PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED



Alerts: UNLK (red) on 25 VU.

ATR 42 / ATR 72


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WOW & L/G CODE 6 Wording: MFC2B: LEFT GEAR SEC DOWN-LOCK PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED



Alerts: UNLK (red) on 25 VU. WOW & L/G CODE 7 Wording: MFC1B: LEFT GEAR WOW1 PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED WIRING Details: Disconnect prox. sw. connector 50GBA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 50GB; - if fault persists, verify wiring integrity between prox. switch & MFC1B.

WOW & L/G CODE 8 Wording: MFC1B: NOSE GEAR WOW1 PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED WIRING Details: Disconnect prox. sw. connector 53GBA and connect it to another prox. sw. in target near


WOW & L/G CODE 9 Wording: MFC1B: RIGHT GEAR WOW1 PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED WIRING Details: Disconnect prox. sw. connector 54GBA and connect it to another prox. sw. in target near


WOW & L/G CODE A Wording: MFC2B: LEFT GEAR WOW2 PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED WIRING Details: Disconnect prox. sw. connector 51GBA and connect it to another prox. sw. in target near


WOW & L/G CODE B Wording: MFC2B: NOSE GEAR WOW2 PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED WIRING Details: Disconnect prox. sw. connector 52GBA and connect it to another prox. sw. in target near


WOW & L/G CODE C Wording: MFC2B: RIGHT GEAR WOW2 PROX. SW.: PR SWITCH FAIL, OR OPEN/SHORTED WIRING Details: Disconnect prox. sw. connector 55GBA and connect it to another prox. sw. in target near


ATR 42 / ATR 72


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DOORS

DOORS CODE 1 Wording: MFC1A: LEFT FWD DOOR PROX. SW. 1 FAILED, OR WIRING OPEN/SHORTED BETWEEN IT

AND MFC Details: Disconnect another prox. sw. connector 41WSA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 41WS; - if fault persists, switch off MFC1 A:

if UNLK persists on panel 25 VU, check wiring between prox. sw. 41 WS and ground point of relay 61 WS (energized) if then UNLK disappears, switch on MFC1A and verify wiring integrity between MFC1A and relay 61 WS (de-energized).

Alerts: UNLK on panel 25 VU CAP : DOOR Sound : SC

DOORS CODE 2 Wording: MFC1A: LEFT FWD DOOR PROX. SW. 2 FAILED, OR WIRING OPEN/SHORTED BETWEEN IT


condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 43WS; - if fault persists, switch off MFC1A:

if UNLK persists on panel 25 VU, check wiring between prox. sw. 43WS and ground point of relay 61WS (energized) if then UNLK disappears, switch on MFC1A and verify wiring integrity between MFC1A and relay 61 WS (de-energized).


DOORS CODE 3 Wording: MFC1A: LEFT AFT DOOR PROX. SW. 1 FAILED, OR WIRING OPEN/SHORTED BETWEEN IT



if UNLK persists on panel 25 VU, check wiring between prox. sw. 55WS and ground point of relay 61 WS (energized) if then UNLK disappears, switch on MFC1A and verify wiring integrity between MFC1A and relay 61WS (de-energized).


DOORS CODE 4 Wording: MFC1 A: LEFT AFT DOOR PROX. SW. 2 FAILED, OR WIRING OPEN/SHORTED BETWEEN IT



if UNLK persists on panel 25 VU, check wiring between prox. sw. 57WS and ground point of relay 61 WS (energized) if then UNLK disappears, switch on MFC1A and verify wiring integrity between MFC1A and relay 61 WS (de-energized).


ATR 42 / ATR 72


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DOORS CODE 5 Wording: MFC2A: RIGHT FWD DOOR PROX. SW. 1 FAILED, OR WIRING OPEN/SHORTED BETWEEN

IT AND MFC Details: Disconnect another prox. sw. connector 54WSA and connect it to another prox. sw. in target near

condition: - it fault disappears (after MFC BITE memory reset), replace prox. sw. 54WS; - if fault persists, switch off MFC1A:

if UNLK persists on panel 25 VU, check wiring between prox. sw. 54WS and ground point of relay 62WS (energized) if then UNLK disappears, switch on MFC1A and verify wiring integrity between MFC2A and relay 62WS (de-energized).


DOORS CODE 6 Wording: MFC2A: RIGHT FWD DOOR PROX. SW. 2 FAILED, OR WIRING OPEN/SHORTED BETWEEN

IT AND MFC Details: Disconnect another prox. sw. connector 56WSA and connect it to another prox. sw. in target near




DOORS CODE 7 Wording: MFC2A: RIGHT AFT DOOR PROX. SW. 1 FAILED, OR WIRING OPEN/SHORTED BETWEEN IT





DOORS CODE 8 Wording: MFC2A: RIGHT AFT DOOR PROX. SW. 2 FAILED, OR WIRING OPEN/SHORTED BETWEEN IT





ATR 42 / ATR 72


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DOORS CODE 9 Wording: MFC2A: (ST3 ONLY) EMERG. HATCH PROX. SW. FAILED, OR WIRING OPEN/SHORTED

THIS SIGNAL IS OPERATIVE ON DOB AND ST3 AIRCRAFT ONLY. Details: Disconnect another prox. sw. connector 38WSA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 38WS; - if fault persists, check wiring integrity between prox. switch and MFC.


DOORS CODE A Wording: MFC2A: (ST3 ONLY) CARGO DOOR HOOKS ENGD PROX. SW. FAILED, OR WIRING

OPEN/SHORTED THIS SIGNAL IS OPERATIVE ON DOB AND ST3 AIRCRAFT ONLY. Details: 1) Disconnect prox. sw. connector 18MPA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 18MP, - if fault persists, check wiring integrity between prox. switch and MFC.

2) If fault persists, repeat point 1) above with prox. sw. 19MP. 3) If fault persists, repeat point 1) above with prox. sw. 20MP.


DOORS CODE B Wording: MFC2A: (ST3 ONLY) CARGO DOOR LOCK PROX. SW. FAILED, OR WIRING OPEN/SHORTED

THIS SIGNAL IS OPERATIVE ON DOB AND ST3 AIRCRAFT ONLY. Details: Disconnect another prox. sw. connector 22MPA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 22MP; - if fault persists, check wiring integrity between prox. switch and MFC.


DOORS CODE C Wording: MFC1A: (ST3 ONLY) CARGO DOOR HOOKS DISENG PROX. SW. FAILED, OR WIRING

OPEN/SHORTED THIS SIGNAL IS OPERATIVE ON DOB AND ST3 AIRCRAFT ONLY. Details: 1) Disconnect prox. sw. connector 15MPA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 15MP, - if fault persists, check wiring integrity between prox. switch and MFC.

2) If wiring is OK, repeat step 1) above for prox. sw. 16MP. 3) If wiring is OK, repeat step 1) above for prox. sw. 17MP.

DOORS CODE D Wording: MFC1A: (ST2 ONLY) EMERG. HATCH PROX. SW. FAILED, OR WIRING OPEN/SHORTED THIS

SIGNAL IS OPERATIVE ON ST2 AIRCRAFT ONLY. Details: Disconnect prox. sw. connector 38WSA and connect it to another prox. sw. in target near

condition: - if fault disappears (after MFC BITE memory reset), replace prox. sw. 38WS; - if fault persists, check wiring integrity between prox. switch and MFC.


ATR 42 / ATR 72


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BOOTS

BOOTS CODE 1 Wording: LEFT ENGINE BOOT A FAULT Details: Possible causes:

- De-icer leakage - Air leak in de-icer supply lines - Failure of pressure switch 11DN - Failure of dual distributor valve 3DN - MFC internal failure

Alerts: FAULT CAP : ANTI-ICE Sound : SC

BOOTS CODE 2 Wording: RIGHT ENGINE BOOT A FAULT Details: Possible causes:



BOOTS CODE 3 Wording: LEFT ENGINE BOOT B FAULT Details: Possible causes:



BOOTS CODE 4 Wording: RIGHT ENGINE BOOT B FAULT Details: Possible causes:



ATR 42 / ATR 72


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BOOTS CODE 5 Wording: LEFT WING BOOT A FAULT Details: Possible causes:

- De-icer leakage - Air leak in de-icer supply lines (channel A) - Failure of pressure switch channel A (valve 9DM) - Failure of dual distributor valve 9DM - MFC internal failure


BOOTS CODE 6 Wording: RIGHT WING BOOT A FAULT Details: Possible causes:



BOOTS CODE 7 Wording: LEFT WING BOOT B FAULT Details: Possible causes:

- De-icer leakage - Air leak in de-icer supply lines (channel B) - Failure of pressure switch channel B (valve 9DM) - Failure of dual distributor valve 9DM - MFC internal failure


BOOTS CODE 8 Wording: RIGHT WING BOOT B FAULT Details: Possible causes:



ATR 42 / ATR 72


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BOOTS CODE 9 Wording: LEFT MEDIAN WING BOOT A FAULT Details: Possible causes:



BOOTS CODE A Wording: RIGHT MEDIAN WING BOOT A FAULT Details: Possible causes:



BOOTS CODE B Wording: LEFT MEDIAN WING BOOT B FAULT Details: Possible causes:



BOOTS CODE C Wording: RIGHT MEDIAN WING BOOT B FAULT Details: Possible causes:



ATR 42 / ATR 72


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BOOTS CODE D Wording: EMPENNAGE BOOT A FAULT (Lx) / LEFT EMPENNAGE BOOT A FAULT (Sx) Details: Possible causes:



BOOTS CODE E Wording: EMPENNAGE BOOT B FAULT (Lx) / LEFT EMPENNAGE BOOT B FAULT (Sx) Details: Possible causes:



ATR 42 / ATR 72


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NAV

NAVIGATION CODE 1 Wording: AHRS 1 OVERHEAT Details: Remove the unit and return it to supplier for tests. If AHRS fan operates properly, check

aircraft air cooling system. NAVIGATION CODE 2 Wording: AHRS 2 OVERHEAT Details: Remove the unit and return it to supplier for tests. If AHRS fan operates properly, check

aircraft air cooling system. NAVIGATION CODE 3 Wording: AHRS 3 OVERHEAT Alerts: Remove the unit and return it to supplier for tests. If AHRS fan operates properly, check

aircraft air cooling system. NAVIGATION CODE 4 Wording: EADI 1 OVERHEAT Details: Remove the unit and return it to supplier for tests. Check aircraft air cooling system. NAVIGATION CODE 5 Wording: EADI 2 OVERHEAT Details: Remove the unit and return it to supplier for tests. Check aircraft air cooling system. NAVIGATION CODE 6 Wording: EHSI 1 OVERHEAT Details: Check aircraft air cooling system. If OK, remove the unit and return it to supplier for tests. NAVIGATION CODE 7 Wording: EHSI 2 OVERHEAT Details: Check aircraft air cooling system. If OK, remove the unit and return it to supplier for tests. NAVIGATION CODE 8 Wording: FMS OVERHEAT Details: Spare. NAVIGATION CODE 9 Wording: SGU 1 OVERHEAT Details: Remove the unit and return it to supplier for tests. If SGU fan operates properly, check aircraft

air cooling system.

ATR 42 / ATR 72


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NAVIGATION CODE A Wording: SGU 2 OVERHEAT Details: Remove the unit and return it to supplier for tests. If SGU fan operates properly, check aircraft

air cooling system. NAVIGATION CODE B Wording: AFCS ANOMALY Details: Run Honeywell Ground Maintenance Test. The following test steps have to be applied: FGC

test, Guidance Controller test, and Cockpit Switch Test.

ATR 42 / ATR 72


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BRAKE

BRAKE CODE 1 Wording: LEFT INBOARD BRAKE OVERHEAT CONDITION HAS OCCURRED Details: This signal appears when an overheating condition occurs (HOT Light illuminates on 404 VU) on

the Left inboard brake. Use procedure applicable in case of brake overheat (Left inboard wheel). Alerts: HOT

CAP : WHEELS Sound : SC

BRAKE CODE 2 Wording: LEFT OUTBOARD BRAKE OVERHEAT CONDITION HAS OCCURRED Details: This signal appears when an overheating condition occurs (HOT Light illuminates on 404 VU) on

the Left outboard brake. Use procedure applicable in case of brake overheat (Left outboard wheel).

Alerts: HOT CAP : WHEELS Sound : SC

BRAKE CODE 3 Wording: RIGHT INBOARD BRAKE OVERHEAT CONDITION HAS OCCURRED Details: This signal appears when an overheating condition occurs (HOT Light illuminates on 404 VU) on

the Right inboard brake. Use procedure applicable in case of brake overheat (Right inboard wheel).


BRAKE CODE 4 Wording: RIGHT OUTBOARD BRAKE OVERHEAT CONDITION HAS OCCURRED Details: This signal appears when an overheating condition occurs (HOT Light illuminates on 404 VU) on

the Right outboard brake. Use procedure applicable in case of brake overheat (Right outboard wheel).


BRAKE CODE 5 Wording: MFC1B: LEFT INBOARD POWER LOSS, OR WIRING OPEN BETWEEN MFC, XMTR AND

SENSOR Details: 1) Check that 28 VDC voltage is present on pin 5 of transmitter 37GG.

2) Check that pin 4 of same item is connected to ground. 3) Check wiring integrity between transmitter and MFC1B input. 4) Disconnect connector 41GGA and connect it to another sensor (thermocouple):

- if fault disappears (after BITE memory reset), replace sensor 41GG; - otherwise replace transmitter 37GG.

BRAKE CODE 6 Wording: MFC1B: LEFT OUTBOARD POWER LOSS, OR WIRING OPEN BETWEEN MFC, XMTR AND




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BRAKE CODE 7 Wording: MFC2B: RIGHT INBOARD POWER LOSS, OR WIRING OPEN BETWEEN MFC, XMTR AND




BRAKE CODE 8 Wording: MFC2B: RIGHT OUTBOARD POWER LOSS, OR WIRING OPEN BETWEEN MFC, XMTR AND

SENSOR Details: 1) Check that 28 VDC voltage Is present on pin 5 of transmitter 34GG.



BRAKE CODE 9 Wording: LEFT INBOARD BRK CHANNEL TEST FAILED: HOT LIGHT NOT LIT WHEN BUTTON

DEPRESSED Details: Test pushbutton is button 33GG on panel 702 VU.

Check other BITE entries for brakes: - If code 5 (-F-F) is present, follow instructions for that code; - if code 5 is not present, check the following. Check for presence of 28 VDC on pin 2 of transmitter 37GG when pushbutton 33GG is depressed:- if no voltage is monitored, verify wiring integrity; - if 28 VDC was present, verify that there is at least 2.5 VDC between pins 1 (High) and 3 (Low)

of 37GG; if OK. Alerts: HOT not lit

CAP : WHEELS not lit BRAKE CODE A Wording: LEFT OUTBOARD BRK CHANNEL TEST FAILED: HOT LIGHT NOT LIT WHEN BUTTON


Check other BITE entries for brakes: - If code 6 (-FF-) is present, follow instructions for that code; - if code 6 is not present, check the following. Check for presence of 28 VDC on pin 2 of transmitter 35GG when pushbutton 33GG is depressed:- if no voltage is monitored, verify wiring integrity; - if 28 VDC was present, verify that there is at least 2.5 VDC between pins 1 (High) and 3 (Low)


CAP : WHEELS not lit

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BRAKE CODE B Wording: RIGHT INBOARD BRK CHANNEL TEST FAILED: HOT LIGHT NOT LIT WHEN BUTTON


Check other BITE entries for brakes: - If code 7 (-FFF) is present, follow instructions for that code; - if code 7 is not present, check the following. Check for presence of 28 VDC on pin 2 of transmitter 36GG when pushbutton 33GG is depressed:- if no voltage is monitored, verify wiring integrity; - if 28 VDC was present, verify that there is at least 2.5 VDC between pins 1 (High) and 3 (Low)


CAP : WHEELS not lit BRAKE CODE C Wording: RIGHT OUTBOARD BRK CHANNEL TEST FAILED: HOT LIGHT NOT LIT WHEN BUTTON


Check other BITE entries for brakes: - If code 8 (F- - -) is present, follow instructions for that code; - if code 8 is not present, check the following. Check for presence of 28 VDC on pin 2 of transmitter 34GG when pushbutton 33GG is depressed:- if no voltage is monitored, verify wiring integrity; - if 28 VDC was present, verify that there is at least 2.5 VDC between pins 1 (High) and 3 (Low)


CAP : WHEELS not lit

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FLT CTL

FLT CONTROL CODE 1 Wording: TORQUE 1 FAULT Details: This code appears with the following conditions:

left power lever in TO position AND torque below 25% OR left power lever not in TO position AND torque upper 50%

AND left ECU not fault AND left engine oil not in low pressure AND MFC1B or 2B valid.

Check AFU, Torque indicator, microswitch on left power lever and associated wiring. FLT CONTROL CODE 2 Wording: TORQUE 2 FAULT Details: This code appears with the following conditions:

right power lever in TO position AND torque below 25% OR right power lever not in TO position AND torque upper 50%

AND right ECU not fault AND right engine oil not in low pressure AND MFC1B or 2B valid.

Check AFU, Torque indicator, microswitch on left power lever and associated wiring. FLT CONTROL CODE 3 Wording: RA < 500 ft AND IAS1 > 185 kts Details: Check if Radio Altimeter is valid, ADC1 is valid and associated wiring. FLT CONTROL CODE 4 Wording: RA < 500 ft AND IAS2 > 185 kts Details: Check if Radio Altimeter is valid, ADC2 is valid and associated wiring. FLT CONTROL CODE 5 Wording: RA > 500 ft AND AIRCRAFT ON GROUND (COMPUTED IN MFC1B) Details: Check if Radio Altimeter is valid or its associated wiring. FLT CONTROL CODE 6 Wording: RA > 500 ft AND AIRCRAFT ON GROUND (COMPUTED IN MFC2B) Details: Check if Radio Altimeter is valid or its associated wiring. FLT CONTROL CODE 7 Wording: SPRING TAB PIN PROG NOT GROUNDED (Sx) Details: Check input AA08J. FLT CONTROL CODE 8 Wording: TRIM DIRECTION: COMMAND SWITCHES FAULT Details: Command switches active for more than 60 s: probably stuck.

Check switches and wiring. FLT CONTROL CODE 9 Wording: FLAP POSITION SWITCHES FAULT Details: Incoherent readings of flap position: check position switches and associated wiring.

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FLT CONTROL CODE A Wording: SPRING TAB PIN PROG NOT GROUNDED (Sx) (MFC2B). Details: Check wiring for spring tab pin prog and input AF05H. FLT CONTROL CODE C Wording: STICK PUSHER: LEFT ALPHA PROBE DISAGREE Details: Left Alpha-probe sensor stages disagree. Check first for misalignment of probe stages; if

problem persists, check wiring and MFC connections. Alerts: FAULT

CAP : stick pusher Sound : SC

FLT CONTROL CODE D Wording: STICK PUSHER: RIGHT ALPHA PROBE DISAGREE Details: Right Alpha-probe sensor stages disagree. Check first for misalignment of probe stages; if

problem persists, check wiring and MFC connections. Alerts: FAULT

CAP : stick pusher Sound : SC

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MISC 1

MISC 1 CODE 1 Wording: LEFT BLEED OVERHEAT OR VALVE FAULT Details: Refer to left HP Bleed system inspection procedure. MISC 1 CODE 2 Wording: RIGHT BLEED OVERHEAT OR VALVE FAULT Details: Refer to right HP Bleed system inspection procedure. MISC 1 CODE 3 Wording: LEFT DC POWER FEEDERS OPEN WIRING DETECTED Details: On ground:

With left engine running and left DC system commanded ON, check that "FAULT" light is illuminated on 23PU pushbutton (on the "DC elec power" panel). This fault confirms a failure of DC power feeders: apply appropriate inspection procedure.

Alerts: FAULT (on gnd) CAP : ELEC (on gnd) Sound : SC

MISC 1 CODE 4 Wording: RIGHT DC POWER FEEDERS OPEN WIRING DETECTED Details: On ground:

With right engine running and right DC system commanded ON, check that "FAULT" light is illuminated on 24PU pushbutton (on the "DC elec power" panel). This fault confirms a failure of DC power feeders: apply appropriate inspection procedure.

Alerts: FAULT (on gnd) CAP : ELEC (on gnd) Sound : SC

MISC 1 CODE 5 Wording: ELEC: SERVICE UTILITY CONTACTOR DISAGREE Details: With the aircraft elec power configured so that utility buses 1 and 2 and service bus should be

supplied: - verify that coils of 29 PU (util #1), 30 PU (util #2) and 10 PX (svce bus) are 28 VDC supplied;

if no: check wiring integrity between BPCU-DC and the contactor coil not supplied, and between coil and ground; if all coils are supplied, check that contactors close (main and auxiliary contacts) and replace contactors that do not close properly.

MISC 1 CODE 6 Wording: LEFT AIR CONDITIONING SYSTEM OVERHEAT CONDITION HAS OCCURRED Details: Refer to left air conditioning system inspection procedure. Alerts: FAULT

CAP : AIR Sound : SC

MISC 1 CODE 7 Wording: RIGHT AIR CONDITIONING SYSTEM OVERHEAT CONDITION HAS OCCURRED Details: Refer to right air conditioning system inspection procedure. Alerts: FAULT

CAP : AIR Sound : SC

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MISC 1 CODE 8 Wording: LEFT MAIN WINDSHIELD DE-ICING CONTROLLER (11DG) OR TEMPERATURE SENSOR

FAILURE Details: Install in place of controller 11DG (LH channel) controller 12DG (from RH channel); after MFC

BITE reset check if fault appears again. If no, replace LH controller. If yes: 1) verify that pin M of 11DG is not ground connected; 2) disconnect 11DGA connector and verify wiring integrity between pins G and E (this check

includes heater resistor integrity verification). Alerts: (FAULT)

CAP : (ANTI-ICE) MISC 1 CODE 9 Wording: RIGHT MAIN WINDSHIELD DE-ICING CONTROLLER (12DG) OR TEMPERATURE SENSOR

FAILURE Details: Install in place of controller 12DG (RH channel) controller 11DG (from LH channel); after MFC

BITE reset, check if fault appears again. If no, replace RH controller. If yes: 1) verify that pin M of 12DG is not ground connected; 2) disconnect 12DGA connector and verify wiring integrity between pins G and E (this check

includes heater resistor integrity verification). Alerts: (FAULT)

CAP : (ANTI-ICE) MISC 1 CODE A Wording: FWD EXTINGUISHER SQUIB Details: Possible causes:

- Failure of a resistance of the fire extinguisher squib - MFC internal failure

MISC 1 CODE B Wording: AFT EXTINGUISHER SQUIB Details: Possible causes:

- Failure of a resistance of the fire extinguisher squib - MFC internal failure

MISC 1 CODE C Wording: AUX AFT CARGO EXTINGUISHER 2 FAILED Details: Possible causes:

- Failure of a resistance of the fire extinguisher - MFC internal failure

MISC 1 CODE D (Sx) only Wording: ADC 1 OR ADC 1 & 2 SWITCHES DISAGREE Details: Check ADC 1 validity MFC pin AC-06D and its associated wiring from ADC 1 to

MFC pins AF-02G, AF-02H and AF-03G. MISC 1 CODE E Wording: ADC 2 OR ADC 2 & 1 SWITCHES DISAGREE Details: Check ADC 2 validity MFC pin AC-06D and its associated wiring from ADC 2 to

MFC pins AF-02G, AF-02H and AF-03G.

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MISC 2

MISC 2 CODE 1 Wording: ELEC: STAND-BY BUS CONTACTOR FAILED Details: DC stand-by bus contactor 4PD did not react to command.

Probably stuck: inspect and change it. MISC 2 CODE 2 Wording: AUTO MODE SWITCHES DISAGREE (ANTI-ICE) (Sx) only Details: Check wiring through MFC pin AF-02E.

This code allows to detect a discrepancy between the auto mode selection from MFC1B and MFC2B.

MISC 2 CODE 3 Wording: FDAU MEMORY FULL Details: Clear high capacity memory with DMT set.

If indication persists, change FDAU. MISC 2 CODE 4 Wording: QUICK ACCESS RECORDER MEMORY FULL Details: Observe indicator light on QAR front face; depending on indication:

- change tape - or remove QAR.

MISC 2 CODE 5 Wording: ENGINE 1 FEEDER JET PUMP CLOGGED Details: Left engine fuel feeder jet pump is probably clogged.

Repeat incident on ground (Ref. corresponding Job Instruction Card) before inspecting jet pump (or detection circuit).

MISC 2 CODE 6 Wording: ENGINE 2 FEEDER JET PUMP CLOGGED Details: Right engine fuel feeder jet pump is probably clogged.

Repeat incident on ground (Ref. corresponding Job Instruction Card) before inspecting jet pump (or detection circuit).

MISC 2 CODE 7 Wording: EEC 1 FAULT LATCH Details: Use FDEP to identify default.

Apply procedure from note PWC MM (part 3037332). Alerts: FAULT

CAP : ENG Sound : SC

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MISC 2 CODE 8 Wording: EEC 2 FAULT LATCH Details: Use FDEP to identify default.

Apply procedure from note PWC MM (part 3037332). Alerts: FAULT

CAP : ENG Sound : SC

MISC 2 CODE 9 Wording: ANTI-ICE: OPTIONAL BOOT A (FIN) FAULT Details: Possible causes:

- De-icer leakage - De-icer supply line leakage (channel A) - Channel A pressure switch failure (valve 31 DM) - Failure of dual distributor valve 31 DM


MISC 2 CODE A Wording: ANTI-ICE: OPTIONAL BOOT B (FIN) FAULT Details: Possible causes:

- De-icer leakage - De-icer supply line leakage (channel B) - Channel B pressure switch failure (valve 31 DM) - Failure of dual distributor valve 31 DM


MISC 2 CODE C Wording: PROP. BRAKE: POSITION SWITCHES DISAGREE Details: Brake "lock" and "full unlock" position switches give incoherent readings: check switches and their

wiring. Alerts: FAULT

CAP : ANTI-ICE Sound : SC

MISC 2 CODE D Wording: ANTI-ICE: LEFT PROPELLER HEATER FAULT Details: No current detected in propeller heating resistors when a command was issued. Check wiring

continuity between MFC1 (modules A and B) and heater, and appropriate electrical bus bar. Alerts: FAULT


MISC 2 CODE E Wording: ANTI-ICE: RIGHT PROPELLER HEATER FAULT Details: No current detected in propeller heating resistors when a command was issued. Check wiring

continuity between MFC2 (modules A and B) and heater, and appropriate electrical bus bar. Alerts: FAULT


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MISC 3

(Sx only)

MISC 3 CODE 1 Wording: MODULE 1A PIN PROG DISAGREE Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins

AE09A, AF01A, AF01B, AF02A, AF02B. Alerts: FAULT

CAP : MFC Sound : SC

MISC 3 CODE 2 Wording: MODULE 1B PIN PROG DISAGREE Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins

AB10D, AB10E, AB11D, AB11E. Alerts: FAULT


MISC 3 CODE 3 Wording: MODULE 2A PIN PROG DISAGREE Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins



MISC 3 CODE 4 Wording: MODULE 2B PIN PROG DISAGREE Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins



MISC 3 CODE 5 Wording: MODULE 1A PIN PROG ACQUISITION FAULT Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins



MISC 3 CODE 6 Wording: MODULE 1B PIN PROG ACQUISITION FAULT Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins



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MISC 3 CODE 7 Wording: MODULE 2A PIN PROG ACQUISITION FAULT Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins



MISC 3 CODE 8 Wording: MODULE 2B PIN PROG ACQUISITION FAULT Details: This code allows to confirm the MFC validity with the aircraft configuration. Check connector pins



MISC 3 CODE 9 Wording: ANC SYSTEM OPERATIVE FAULT (S3) Details: Check ANC system or wiring from ANC to MFC1B pin AF-04A. Alerts: FAULT


Wording: AIRCRAFT VERSION FAULT (S4)

Check resistors AF05C/D, AF05C/D, AE09E/F. Alerts: FAULT


MISC 3 CODE A Wording: ANC SYSTEM INOPERATIVE FAULT (S3) Details: Check ANC system or wiring from ANC to MFC1B pin AF-04B. Alerts: FAULT


Wording: MFC COMPATIBILITY FAULT Details: Check MFC1 & MFC2 P/N Alerts: FAULT


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MISC 3 CODE B Wording: RIGHT EMPENNAGE BOOT A FAULT (S3) Details: Idem "BOOTS Code D". Alerts: FAULT

CAP : ANTI-ICING Sound : SC

Wording: MFC MIXABILITY FAULT (S4) Alerts: FAULT


MISC 3 CODE C Wording: RIGHT EMPENNAGE BOOT B FAULT (S3) Details: Idem 'BOOTS Code E". Alerts: FAULT


MISC 3 CODE D Wording: PROPELLER TYPE DISAGREE Details: Check wiring between: grd and AF08K, AF-08A. Alerts: FAULT on P/B (10DH/11DH)


MISC 3 CODE E Wording: UNKNOWN PROPELLER TYPE Details: Idem MISC 3 Code D Alerts: FAULT


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MFC

(Lxx only)

MFC CODE 3 Wording: MFC1A: INVALID SYNCHRO. INPUT Details: Input data from a synchro, angular acquisition did not satisfy consistency test (cos.cos + sin.sin =

1). Check synchro. detectors and acquisition/processing hardware. Synchro. inputs to MFC1A are: Left and Right Flap Position Actuators.

MFC CODE 4 Wording: MFC1B: INVALID SYNCHRO. INPUT Details: Input data from a synchro, angular acquisition did not satisfy consistency test (cos.cos + sin.sin =

1). Check synchro. detectors and acquisition/processing hardware. Synchro. inputs to MFC1B are: Left and Right Flap Position Actuators Left and Right Pitch Trim Position Actuators.

MFC CODE 5 Wording: MFC2A: INVALID SYNCHRO. INPUT Details: Input data from a synchro. angular acquisition did not satisfy consistency test (cos.cos + sin.sin =

1). Check synchro. detectors and acquisition/processing hardware. Synchro. inputs to MFC2A are: Left and Right Flap Position Actuators.

MFC CODE 6 Wording: MFC2B: INVALID SYNCHRO. INPUT Details: Input data from a synchro. angular acquisition did not satisfy consistency test (cos.cos + sin.sin =

1). Check synchro. detectors and acquisition/processing hardware. Synchro. inputs to MFC2B are: Left and Right Flap Position Actuators Left and Right Pitch Trim Position Actuators.

MFC CODE 7 Wording: MFC1A: RESISTOR INPUT OUT OF RANGE Details: Temperature computed from a resistive sensor appeared out of range.

Check resistor inputs and connections. Resistor inputs to MFC1A are: Power Feeder Thermal Sensors #1 and #2 Engine 1 HP area temperature Left Side Window Temperature.

MFC CODE 8 Wording: MFC1B: RESISTOR INPUT OUT OF RANGE Details: Temperature computed from a resistive sensor appeared out of range.

Check resistor inputs and connections. Resistor inputs to MFC1B are: Left Side Window Temperature.

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MFC CODE 9 Wording: MFC2A: RESISTOR INPUT OUT OF RANGE Details: Temperature computed from a resistive sensor appeared out of range.

Check resistor inputs and connections. Resistor inputs to MFC2A are: Power Feeder Thermal Sensors #1 and #2 Engine 1 HP area temperature.

MFC CODE A Wording: MFC2B: RESISTOR INPUT OUT OF RANGE Details: Temperature computed from a resistive sensor appeared out of range.

Check resistor inputs and connections. Resistor inputs to MFC2B are: Left Side Window Temperature.

MFC CODE B Wording: MFC1A: DISCRETE OUTPUT FAULT Details: Check Module discrete output wirings. MFC CODE C Wording: MFC1 B: DISCRETE OUTPUT FAULT Details: Check Module discrete output wirings. MFC CODE D Wording: MFC2A: DISCRETE OUTPUT FAULT Details: Check Module discrete output wirings. MFC CODE E Wording: MFC2B: DISCRETE OUTPUT FAULT Details: Check Module discrete output wirings.

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MISC 4

(Sx only)

MISC 4 CODE 1 Wording: PEC 1 FAILURE Details: Verify PEC 1 system to MFC1B pin AF-04E. MISC 4 CODE 2 Wording: PIU 1 FAILURE Details: Verify PIU 1 system to MFC1B pin AF-04F. MISC 4 CODE 3 Wording: PEC 2 FAILURE Details: Verify PEC 2 system to MFC2B pin AF-04E. MISC 4 CODE 4 Wording: PIU 2 FAILURE Details: Verify PIU 2 system to MFC2B pin AF-04F. MISC 4 CODE 5 Wording: ACTIVE NOISE CONTROL SYSTEM INOPERATIVE FAULT (S4) Details: Check ANC and wiring between ANC and MFC1B AF04A. MISC 4 CODE 6 Wording: ACTIVE NOISE CONTROL SYSTEM INOPERATIVE FAULT (S4) Details: Check ANC and wiring between ANC and MFC1B AF04B. MISC 4 CODE 7 Wording: RIGHT EMPENNAGE BOOT A FAULT (S4) Details: Possible causes:

- De-icer leakage - Air leak in de-icer supply lines (channel A) - Failure of pressure switch channel A (valve 11 DM) - Failure of dual distributor valve 11 DM - MFC internal failure


MISC 4 CODE 8 Wording: RIGHT EMPENNAGE BOOT B FAULT (S4) Details: Possible causes:

- De-icer leakage - Air leak in de-icer supply lines (channel B) - Failure of pressure switch channel B (valve 11 DM) - Failure of dual distributor valve 11 DM - MFC internal failure


ATR-42 List of MFC codes

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Transcript of ATR-42 List of MFC codes