DOC AIRBUS | AMM A320FDeactivation of the TRAS Track Lock Pin Access Panel [PW11]
TASK 78-32-00-040-812-A
Deactivation of the TRAS Track Lock Pin Access Panel
CDL 78-27
Tertiary Lock Pin Cover on Latch Beam
To remove the TRAS track lock pin access panel and install high speed tape after the TRAS track lock pin access panel has become damaged or missing.
2. Job Set-up Information
A. Consumable Materials
B. Referenced Information
3. Job Set-up
Subtask 78-32-00-941-124-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-440-121-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:32:03 UTC
Deactivation of the TRAS Track Lock Pin Access Panel
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 JobCDL 78-27
Tertiary Lock Pin Cover on Latch Beam
To remove the TRAS track lock pin access panel and install high speed tape after the TRAS track lock pin access panel has become damaged or missing.
2. Job Set-up Information
A. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | lint-free cotton cloth |
| (Material No.PU1-0042) | High Speed Tape |
| (Material No.PU2-0001) | alcohol, isopropyl |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| 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 78-32-37-000-801-A | Removal of the TRAS Track Lock Pin Access Panel |
| SRM 517712 | |
TRAS Track Lock Pin Access PanelSubtask 78-32-00-941-124-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 78-32-00-040-129-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
B. Deactivation of the Thrust Reverser for Maintenance
4. ProcedureWARNING:
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) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805). WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-32-00-040-130-A ** ON A/C NOT FOR ALL A. Deactivation of the TRAS track lock pin access panel.
(2) Clean the mating surface of the TRAS track lock pin access panel on the latch beam. Use a clean, lint-free cotton cloth (Material No.PU1-0001) andPU2-0001 alcohol, isopropyl PU2-0001 alcohol, isopropyl
(3) Cut the High Speed Tape (Material No.PU1-0042) to the correct dimensions for the opening in the latch beam SRM 517712.
(4) Apply the High Speed Tape (Material No.PU1-0042) over the opening on the latch beam SRM 517712.
(5) Apply a second layer of the High Speed Tape (Material No.PU1-0042) perpendicular to the first layer SRM 517712.
(6) Make the High Speed Tape (Material No.PU1-0042) smooth on the mating surfaces of the latch beam. Remove the air pockets and push the edges of the High Speed Tape (Material No.PU1-0042) tightly against the latch beam SRM 517712.
(7) Make sure that the High Speed Tape (Material No.PU1-0042) is tightly attached to the latch beam.
5. Close-upNOTE: This procedure is for the TRAS track lock pin access panel on the left thrust reverser half. The procedure for the TRAS track lock pin access panel on the right thrust reverser half is opposite.
(1) If the damaged TRAS track lock pin access panel is there, remove the TRAS track lock pin access panel from the latch beam (Ref. AMM TASK 78-32-37-000-801). (2) Clean the mating surface of the TRAS track lock pin access panel on the latch beam. Use a clean, lint-free cotton cloth (Material No.PU1-0001) and
(3) Cut the High Speed Tape (Material No.PU1-0042) to the correct dimensions for the opening in the latch beam SRM 517712.
(4) Apply the High Speed Tape (Material No.PU1-0042) over the opening on the latch beam SRM 517712.
(5) Apply a second layer of the High Speed Tape (Material No.PU1-0042) perpendicular to the first layer SRM 517712.
(6) Make the High Speed Tape (Material No.PU1-0042) smooth on the mating surfaces of the latch beam. Remove the air pockets and push the edges of the High Speed Tape (Material No.PU1-0042) tightly against the latch beam SRM 517712.
(7) Make sure that the High Speed Tape (Material No.PU1-0042) is tightly attached to the latch beam.
Subtask 78-32-00-440-121-A ** ON A/C NOT FOR ALL
A. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-00-410-194-A ** ON A/C NOT FOR ALL B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).