Removal of the Fan Cowl Jumper Cables [PW11]

TASK 71-13-02-000-801-A
Removal of the Fan Cowl Jumper Cables

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 AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

ZONE: 400

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	1	SCRAPER - PLASTIC

B. Work Zones and Access Panels

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

C. 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
Fan Cowl Jumper Cable

3. Job Set-up
Subtask 71-13-02-941-050-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 71-13-02-010-050-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
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

4. Procedure
Subtask 71-13-02-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Fan Cowl Jumper Cable on the Left Fan Cowl Door

NOTE: The jumper cable removal procedure is the same for the right fan cowl door.

(1) With a SCRAPER - PLASTIC, carefully remove the unwanted sealant from where the jumper cable (7) attaches to the pylon bracket.

NOTE: The jumper cable (7) is on the forward hinge of the fan cowl.

(2) Remove the sealant from the screw (5) and washer (6) with a SCRAPER - PLASTIC. Do not scratch the pylon bracket.
(3) Remove the screw (5) and washer (6) that attach the jumper cable (7) to the pylon.
(4) Remove the jumper cable (7).
(5) Carefully remove unwanted sealant from where the jumper cable (7) attaches to the forward hinge with a SCRAPER - PLASTIC.
(6) Remove the sealant from the screw (1), washers (3) and (2) and nut (4) with a SCRAPER - PLASTIC. Do not scratch the forward hinge.
(7) If necessary, remove the screw (1), washers (3) and (2) and nut (4) that attach the jumper cable (7) to the door hinge.
(8) Remove the jumper cable (7).

[Rev.10 from 2021] 2026.04.01 12:57:27 UTC