General Visual Inspection of the Fan Cowl Door Keepers and Keeper Housings [PW11]

TASK 71-13-21-200-802-A
General Visual Inspection of the Fan Cowl Door Keepers and Keeper Housings

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

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.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR

B. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 71-13-00-820-802-A	Adjustment of the Fan Cowl Doors
TASK 71-13-21-000-801-A	Removal of the Fan Cowl Latch Keepers
TASK 71-13-21-400-801-A	Installation of the Fan Cowl Latch Keepers
Fan Cowl Door Keepers and Keeper Housings

3. Job Set-up
Subtask 71-13-21-941-053-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 71-13-21-010-053-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR

4. Procedure

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

Subtask 71-13-21-210-050-A ** ON A/C NOT FOR ALL

A. Visually examine the fan cowl door keeper housing and surrounding areas.
(1) Do not discard a part until you are sure there are no repairs available. If you reject a part and no repair is available, contact United Technologies Aerospace Systems (UTAS) for disposition.
(2) Examine the keeper housing and the surrounding areas on the right fan cowl door for cracks, gouges, corrosion, loose hardware and broken parts.
(a) If you find damage, refer to the Structural Repair Manual (SRM) for allowable damage limits and repair procedures or contact United Technologies Aerospace Systems (UTAS) for disposition.
(3) Examine the latch keeper housing alignment pin, striker bolt and washer on the latch housing for cracks, gouges, corrosion and loose hardware.
(a) If you find damage, replace the damaged part.
(b) If you find loose hardware, tighten it (Ref. AMM TASK 71-13-00-820-802).

Subtask 71-13-21-210-051-A ** ON A/C NOT FOR ALL

B. Visually examine the fan cowl door keepers.
(1) Examine the bolts, washers and nuts that are on the keepers for loose, missing or damaged parts.
(a) If you find damage, replace the damaged part.
(b) If you find loose hardware, tighten it (Ref. AMM TASK 71-13-21-000-801) and (Ref. AMM TASK 71-13-21-400-801).

5. Close-up
Subtask 71-13-21-410-052-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:32:49 UTC