Closing of the Fan Cowl Doors with a Baulk Bracket Wearstrips Missing [PW11]

TASK 71-13-00-440-822-A
Closing of the Fan Cowl Doors with a Baulk Bracket Wearstrips Missing

WARNING: WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: DO NOT KEEP OPEN A FAN COWL DOOR WHEN THE WIND SPEED IS 60 MPH (96 KM/H) OR MORE. IF THE WIND MOVES THE FAN COWL DOOR, INJURY TO PERSONS AND/OR DAMAGE TO THE ENGINE AND ADJACENT COMPONENTS CAN OCCUR.

WARNING: BE CAREFUL IF YOU OPEN OR CLOSE A FAN COWL DOOR WHEN THE WIND SPEED IS 25 MPH (40 KM/H) OR MORE. IF THE WIND MOVES THE FAN COWL DOOR, INJURY TO PERSONS AND/OR DAMAGE TO THE ENGINE AND ADJACENT COMPONENTS CAN OCCUR.

WARNING: DO NOT LET THE FAN COWL DOOR FALL. IF THE DOOR FALLS, IT CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO THE EQUIPMENT.

CAUTION: MAKE SURE THAT THE THRUST REVERSER DOORS ARE CLOSED BEFORE YOU CLOSE THE FAN COWL DOORS. DAMAGE TO THE EQUIPMENT CAN OCCUR.

CAUTION: DO NOT LIFT THE FAN COWL DOOR MORE THAN 52 DEGREES FROM THE VERTICAL. DAMAGE TO THE FAN COWL DOOR OR PYLON CAN OCCUR.

CAUTION: WHEN YOU OPEN OR CLOSE THE FAN COWL DOOR, BE CAREFUL NOT TO PUSH THE DOOR FORWARD OR AFT. IF YOU DO THIS, THE DOOR CAN HIT COMPONENTS AND CAUSE DAMAGE TO THEM OR PREVENT CORRECT ENGAGEMENT OF THE AXIAL LOCATORS.

1. Reason for the Job
CDL 71-29
FC Latch 3 Baulking Bracket Wearstrip
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 71-13-00-410-805-A	Closing of the Fan Cowl Doors - Sling Method
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
Fan Cowl Doors
Fan Cowl Door Aft Latch (L3)

3. Job Set-up
Subtask 71-13-00-941-104-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
(2) Close the thrust reverser doors.

CAUTION: MAKE SURE THAT THE THRUST REVERSER DOORS ARE CLOSED BEFORE YOU CLOSE THE FAN COWL DOORS. DAMAGE TO THE EQUIPMENT CAN OCCUR.

(a) Make sure that the thrust reverser doors are closed (Ref. AMM TASK 78-36-00-410-802).
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position.

4. Procedure

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

CAUTION: IF THE BAULK BRACKET ABOVE THE AFT LATCH (L3) IS NOT THERE OR IF ITS WEARSTRIP IS MISSING, DO NOT OPEN THE LATCH HOOK MORE THAN NECESSARY TO DISENGAGE OR ENGAGE THE KEEPER. DO NOT MOVE THE LATCH HOOK TOO MUCH IN THE DIRECTION OF THE LATCH HANDLE OR PUT THE LATCH HOOK AGAINST THE LATCH HANDLE. MAKE SURE THAT THE ANGULAR POSITION OF THE LATCH HOOK IS NOT LESS THAN 90 DEGREES FROM THE LATCH HANDLE. IF YOU DO NOT OBEY THESE PRECAUTIONS, THE LATCH CAN HIT THE ENGINE OIL TUBE OR THE BAULK BRACKET AND CAUSE DAMAGE.

Subtask 71-13-00-410-121-A ** ON A/C NOT FOR ALL

A. Closing of the Fan Cowl Doors with Baulk Bracket Wearstrip Missing
(1) Lower the left and right fan cowl doors. Do not engage the fan cowl latches with the keepers at this time (Ref. AMM TASK 71-13-00-410-802) or (Ref. AMM TASK 71-13-00-410-805).
(2) Make sure that the push open device correctly aligns with the push open device wearplate (Ref. AMM TASK 71-13-00-410-802) or (Ref. AMM TASK 71-13-00-410-805).
(3) Make sure that axial locators on the left and right fan cowl doors correctly engage with the locator clips on the inlet cowl (Ref. AMM TASK 71-13-00-410-802) or (Ref. AMM TASK 71-13-00-410-805).
(4) Make sure that the alignment pins on the right fan cowl door go into the alignment holes on the left fan cowl door (Ref. AMM TASK 71-13-00-410-802) or (Ref. AMM TASK 71-13-00-410-805).

CAUTION: CLOSE THE LATCHES IN THE SEQUENCE THAT FOLLOWS. DAMAGE TO THE EQUIPMENT CAN OCCUR IF YOU DO NOT OBEY THESE INSTRUCTIONS.

(5) Engage the forward latch (L1), center latch (L2) and aft latch (L3) with the related latch keeper. Make sure that you keep the L3 latch hook in the correct position until the L3 latch is clear of the baulk bracket (Ref. AMM TASK 71-13-00-410-802) or (Ref. AMM TASK 71-13-00-410-805).
(6) Close the latches until they are flush with the door surface and locked into position (Ref. AMM TASK 71-13-00-410-802) or (Ref. AMM TASK 71-13-00-410-805).

5. Close-up
Subtask 71-13-00-942-066-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
(3) Make an entry in the logbook to tell that the fan cowl doors are closed and latched.
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 02:32:04 UTC