Installation of the High Speed Tape (Track Lock Cover Damaged or Missing) [PW11]

TASK 78-32-00-040-809-A
Installation of the High Speed Tape (Track Lock Cover Damaged or Missing)

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
CDL 78-28
Tertiary Lock Cover Plate
To remove the track lock cover and install high speed tape after the track lock become damaged or missing.
2. Job Set-up Information
A. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05RAB9)	Adhesive Film Tape-- Aluminium Foil -

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 451AL
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 461AL

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
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-32-38-000-801-A	Removal of the Track Lock Cover
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
SRM 517712
Track Lock Cover

3. Job Set-up
Subtask 78-32-00-941-109-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 78-32-00-010-157-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (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

Subtask 78-32-00-040-108-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser System for Ground Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Make sure that you did the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 78-32-00-010-158-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Make sure that the left thrust reverser cowl-door is open (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL

4. Procedure
Subtask 78-32-00-420-074-A ** ON A/C NOT FOR ALL

A. Installation of the High Speed Tape (Track Lock Cover Damaged or Missing)
(1) If the damaged track lock cover is there, remove the track lock cover from the latch beam (Ref. AMM TASK 78-32-38-000-801).
(2) Cut the Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) to the correct dimensions for the opening in the latch beam SRM 517712.
(3) Apply the Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) over the opening on the latch beam SRM 517712.
(4) Apply a second layer of the Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) perpendicular to the first layer SRM 517712.
(5) Make the high speed tape smooth on the mating surfaces of the latch beam.
(a) Remove the air pockets and push the edges of the high speed tape tightly SRM 517712.
(6) Make sure that the high speed tape is tightly attached to the latch beam.

5. Close-up
Subtask 78-32-00-410-168-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 left thrust reverser cowl-door (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL

Subtask 78-32-00-440-111-A ** ON A/C NOT FOR ALL

B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 78-32-00-410-169-A ** ON A/C NOT FOR ALL

C. Close Access
(1) 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
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:32:00 UTC