Reactivation of the Aerodynamic Seal
TASK 54-53-00-440-001-A
Reactivation of the Aerodynamic Seal
CDL 54-06
Aerodynamic Seal
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 54-53-00-941-053-A ** ON A/C NOT FOR ALL
Subtask 54-53-00-440-052-A ** ON A/C NOT FOR ALL
Subtask 54-53-00-440-053-A ** ON A/C NOT FOR ALL Subtask 54-53-00-440-053-B ** ON A/C NOT FOR ALL Subtask 54-53-00-860-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:02:22 UTC
Reactivation 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.
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) |
| 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 |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 3 | SEAL | AIPC 54-53-11-01-260 |
| 4 | SEAL | AIPC 54-53-11-01-260 |
| 5 | SEAL | AIPC 54-53-11-01-340 |
| 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 |
Subtask 54-53-00-941-053-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 54-53-00-040-053-A ** ON A/C NOT FOR ALL Subtask 54-53-00-040-053-B ** ON A/C NOT FOR ALL Subtask 54-53-00-010-051-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 54-53-00-440-052-A ** ON A/C NOT FOR ALL
A. Reactivation of the Aerodynamic Seal
(1) Remove the high-speed tape from the pylon structure and the wing structure.
(2) 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.
(3) Install the replacement AIPC 54-53-11-01-260 SEAL (3) on its support (2).
(4) 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.
Subtask 54-53-00-440-052-B ** ON A/C NOT FOR ALL (1) Remove the high-speed tape from the pylon structure and the wing structure.
(2) 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.
(3) Install the replacement AIPC 54-53-11-01-260 SEAL (3) on its support (2).
(4) 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.
A. Reactivation of the Aerodynamic Seal
(1) Remove the high-speed tape from the pylon structure and the wing structure.
(2) 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.
(3) Install the replacement AIPC 54-53-11-01-260 SEAL (4) on its support (3).
(4) Install the replacement AIPC 54-53-11-01-340 SEAL (5) on its support (6).
(5) 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.
5. Close-up(1) Remove the high-speed tape from the pylon structure and the wing structure.
(2) 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.
(3) Install the replacement AIPC 54-53-11-01-260 SEAL (4) on its support (3).
(4) Install the replacement AIPC 54-53-11-01-340 SEAL (5) on its support (6).
(5) 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.
Subtask 54-53-00-440-053-A ** ON A/C NOT FOR ALL Subtask 54-53-00-440-053-B ** ON A/C NOT FOR ALL Subtask 54-53-00-860-051-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).
(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).
Aerodynamic Seal Deactivation/Reactivation