DOC AIRBUS | AMM A320FDeactivation of the Aerodynamic Seal
TASK 54-53-00-040-001-A
Deactivation of the Aerodynamic Seal
CDL 54-06
Aerodynamic Seal
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 54-53-00-941-052-A ** ON A/C NOT FOR ALL
Subtask 54-53-00-040-052-A ** ON A/C NOT FOR ALL
Subtask 54-53-00-440-051-A ** ON A/C NOT FOR ALL Subtask 54-53-00-440-051-B ** ON A/C NOT FOR ALL Subtask 54-53-00-860-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:02:20 UTC
Deactivation of the Aerodynamic Seal
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:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 410
ZONE: 420
ZONE: 470
ZONE: 480
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
1. Reason for the JobZONE: 420
ZONE: 470
ZONE: 480
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
CDL 54-06
Aerodynamic Seal
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05RAC1) | Adhesive Film Tape-- Aluminium Foil - Sound damping - |
| (Material No.08BPA1) | Non Aqueous Cleaner-Non structural use - - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 410 | ENG 1 PYLON BOX AND FORWARD FAIRING |
| 420 | ENG 2 PYLON BOX AND FORWARD FAIRING |
| 470 | ENGINE 1 AFT PYLON |
| 480 | ENGINE 2 AFT PYLON |
| 471AL, 471AR, 481AL, 481AR | |
| 414FR, 423FL |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 54-53-11-000-002-A | Removal of the Pylon-to-Wing Access Panels |
| TASK 54-53-11-000-002-B | Removal of the Pylon-to-Wing Access Panels |
| TASK 54-53-11-400-002-A | Installation of the Pylon-to-Wing Access Panels |
| TASK 54-53-11-400-002-B | Installation of the Pylon-to-Wing Access Panels |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-30-00-081-041-A | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-081-041-B | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-440-012-A | Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance |
| TASK 78-30-00-481-041-A | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-30-00-481-041-B | Make the Thrust Reverser Unserviceable for Maintenance |
Aerodynamic Seal Deactivation/ReactivationSubtask 54-53-00-941-052-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On overhead maintenance panel 50VU:
(a) Make sure that the ON legend of ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC.
Subtask 54-53-00-040-051-A ** ON A/C NOT FOR ALL Subtask 54-53-00-040-051-B ** ON A/C NOT FOR ALL Subtask 54-53-00-010-050-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On overhead maintenance panel 50VU:
(a) Make sure that the ON legend of ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC.
C. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, in zone 410
(b) For the right pylon, in zone 420.
4. Procedure(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, in zone 410
(b) For the right pylon, in zone 420.
Subtask 54-53-00-040-052-A ** ON A/C NOT FOR ALL
A. Deactivation of the Aerodynamic Seal
(a) For the left pylon: 414FR
(b) For the right pylon: 423FL.
(2) Remove the damaged seal (3) from its support (2).
(3) Install the access panels (1) (Ref. AMM TASK 54-53-11-400-002):
(a) For the left pylon: 414FR
(b) For the right pylon: 423FL.
(4) Make sure that the work area is clean and clear of tool(s) and other items.
(5) Clean the pylon structure and the wing structure around the space where the seal was installed, with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) .
(6) Put three layers of Adhesive Film Tape-- Aluminium Foil - Sound damping - (Material No.05RAC1) (adhesive film tape) on the space where the seal was installed.
(7) You must attach the first layer longitudinally on the space and the second and third layers diagonally to get an overlap of the layers.
Subtask 54-53-00-040-052-B ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Remove the access panels (1) (Ref. AMM TASK 54-53-11-000-002): (a) For the left pylon: 414FR
(b) For the right pylon: 423FL.
(2) Remove the damaged seal (3) from its support (2).
(3) Install the access panels (1) (Ref. AMM TASK 54-53-11-400-002):
(a) For the left pylon: 414FR
(b) For the right pylon: 423FL.
(4) Make sure that the work area is clean and clear of tool(s) and other items.
(5) Clean the pylon structure and the wing structure around the space where the seal was installed, with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) .
(6) Put three layers of Adhesive Film Tape-- Aluminium Foil - Sound damping - (Material No.05RAC1) (adhesive film tape) on the space where the seal was installed.
(7) You must attach the first layer longitudinally on the space and the second and third layers diagonally to get an overlap of the layers.
A. Deactivation of the Aerodynamic Seal
(a) For the left pylon: 471AL, 471AR
(b) For the right pylon: 481AL, 481AR.
(2) Remove the damaged seals (4) and (5) from their supports (3) and (6).
(3) Install the access panels (1) and (2) (Ref. AMM TASK 54-53-11-400-002):
(a) For the left pylon: 471AL, 471AR
(b) For the right pylon: 481AL, 481AR.
(4) Make sure that the work area is clean and clear of tool(s) and other items.
(5) Clean the pylon structure and the wing structure, around the space where the seal was installed, with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) .
(6) Put three layers of Adhesive Film Tape-- Aluminium Foil - Sound damping - (Material No.05RAC1) (adhesive film tape) on the space where the seal was installed.
(7) You must attach the first layer longitudinally on the space and the second and third layers diagonally to get an overlap of the layers.
5. Close-upWARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Remove the access panels (1) and (2) (Ref. AMM TASK 54-53-11-000-002): (a) For the left pylon: 471AL, 471AR
(b) For the right pylon: 481AL, 481AR.
(2) Remove the damaged seals (4) and (5) from their supports (3) and (6).
(3) Install the access panels (1) and (2) (Ref. AMM TASK 54-53-11-400-002):
(a) For the left pylon: 471AL, 471AR
(b) For the right pylon: 481AL, 481AR.
(4) Make sure that the work area is clean and clear of tool(s) and other items.
(5) Clean the pylon structure and the wing structure, around the space where the seal was installed, with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) .
(6) Put three layers of Adhesive Film Tape-- Aluminium Foil - Sound damping - (Material No.05RAC1) (adhesive film tape) on the space where the seal was installed.
(7) You must attach the first layer longitudinally on the space and the second and third layers diagonally to get an overlap of the layers.
Subtask 54-53-00-440-051-A ** ON A/C NOT FOR ALL Subtask 54-53-00-440-051-B ** ON A/C NOT FOR ALL Subtask 54-53-00-860-050-A ** ON A/C NOT FOR ALL
B. Put the aircraft back to the serviceable condition.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Make an entry in the aircraft technical log to show that the aerodynamic seal of the pylon is removed and temporarily closed with high-speed tape.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Make an entry in the aircraft technical log to show that the aerodynamic seal of the pylon is removed and temporarily closed with high-speed tape.