Removal of the Fan Cowl Door Latches and Keepers [CFMI]

TASK 71-13-13-000-040-A
Removal of the Fan Cowl Door Latches and Keepers

ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job

NOTE: SB RA32071-163 (equivalent to Airbus service bulletin SB 71-1068) introduces a lockable latch in the forward position (Latch No.1) that must be opened and closed and locked with a key and flag assembly. The key and flag assembly are stowed in the cockpit and must not be used if there is damage to the key or flag.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
Fan Cowl Door and Clevis

3. Job Set-up
Subtask 71-13-13-941-052-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 71-13-13-010-052-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 71-13-13-020-055-A ** ON A/C NOT FOR ALL

A. Removal of the Fan Cowl Door latches and Keeper Assemblies

PRE SB RA32071-117

(1) Remove the bolt (20), the bushings (25), the washer (30), the nut (35), the cotter pin (40) and the latch (45). Discard the cotter pin (40).
(2) Remove the clevis (50) from the housing (55).

CAUTION: DO NOT TURN THE CLEVIS OF THE ADJUSTA-KEEPER. IF YOU TURN THE CLEVIS, YOU CAN CAUSE DAMAGE TO THE GUIDE OF THE HOUSING. IF THE GUIDE IS BROKEN, THE CLEVIS CAN TURN AND IT CANNOT ENGAGE CORRECTLY WITH THE LATCH AND KEEP THE LATCH FROM CLOSING CORRECTLY. IF THE LATCHES ARE NOT CLOSED CORRECTLY, THE FAN COWLS CAN OPEN IN FLIGHT.

(a) Turn the nut (75) of the adjusta-keeper until you can remove the clevis (50) from the housing (55). Do not turn the clevis (50).
(3) Remove the bolts (60), the washers (65), the nuts (70) and the housing (55).

END OF PRE SB RA32071-117

Subtask 71-13-13-020-056-A ** ON A/C NOT FOR ALL

B. Removal of the Fan Cowl Door Latches and Keeper Assemblies

POST SB RA32071-117

(1) Remove the bolt (20), the bushings (25), the washer (30), the nut (35), the cotter pin (40) and the latch (45). Discard the cotter pin (40).
(2) Remove the clevis (50) from the housing (55).

CAUTION: DO NOT TURN THE CLEVIS OF THE ADJUSTA-KEEPER. IF YOU TURN THE CLEVIS, YOU CAN CAUSE DAMAGE TO THE GUIDE OF THE HOUSING AND THE RESTRAINER. IF THE GUIDE IS BROKEN, THE CLEVIS CAN TURN AND IT CAN NOT ENGAGE CORRECTLY WITH THE LATCH AND KEEP THE LATCH FROM CLOSING CORRECTLY. IF THE LATCHES ARE NOT CLOSED CORRECTLY, THE FAN COWLS CAN OPEN IN FLIGHT.

Subtask 71-13-13-020-070-A ** ON A/C NOT FOR ALL

C. Removal of Fan Cowl Door Keyed Latch (position 1 (FWD) only) and Keeper Assembly

PRE SB RA32071-117

(1) Remove the cotter pin (40), nut (35), washer (30), bushings (25) and bolt (20) that attaches the keyed latch (90).

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(a) Remove the keyed latch (90).
(b) Discard the cotter pin (40).
(2) Removal of the clevis

CAUTION: DO NOT TURN THE CLEVISES. IF YOU TURN THE CLEVISES, YOU CAN CAUSE DAMAGE TO THE HOUSING GUIDE. IF THE GUIDE IS DAMAGED, THE CLEVIS CAN TURN. IF THE CLEVIS CAN TURN, THE CLEVIS CAN NOT ENGAGE CORRECTLY WITH THE LATCH AND CAN KEEP THE LATCH FROM CLOSING CORRECTLY. IF THE LATCHES ARE NOT CLOSED CORRECTLY, THE FAN COWLS CAN OPEN IN FLIGHT.

(a) Remove the clevis (95) from the adjustable-keeper housing (85)
(b) Turn the nut (75) of the adjustable keeper housing (85) until you can remove the clevis (95) from the adjustable-keeper housing (85). Do not turn the clevis (95).
(3) Remove the nuts (70), washers (65) and nuts (60) from that attach the adjustable-keeper housing to the bracket.
(4) Remove the adjustable-keepper housing (85).

END PRE SB RA32071-117

Subtask 71-13-13-020-071-A ** ON A/C NOT FOR ALL

D. Removal of the Fan Cowl Door Keyed Latch (position 1 (FWD) only) and Keeper Assembly

POST SB RA32071-117

(1) Remove the cotter pin (40), nut (35), washer (30), bushings (25) and bolt (20) that attaches the keyed latch (90).

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(a) Remove the keyed latch (90).
(b) Discard the cotter pin (40).
(2) Removal of the clevis

(a) Remove the clevis (95) from the adjustable-keeper housing (85)
(b) Turn the nut (75) of the adjustable keeper housing (85) until you can remove the clevis (95) from the adjustable-keeper housing (85). Do not turn the clevis (95).
(3) Remove the nuts (70), washers (65) and nuts (60) from that attach the retainer (80) and the adjustable-keeper housing (85) to the bracket.
(4) Remove the retainer (80) and adjustable-keepper housing (85).

END POST SB RA32071-117

[Rev.10 from 2021] 2026.04.01 02:22:31 UTC