W DOC AIRBUS | AMM A320F

Detailed Inspection of Pylon Fire Seals

TASK 54-50-00-220-807-A
Detailed Inspection of Pylon Fire Seals

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.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 410
ZONE: 413
ZONE: 414
ZONE: 415
ZONE: 420
ZONE: 423
ZONE: 424
ZONE: 425
ZONE: 473
ZONE: 483
1. Reason for the Job
Refer to the MPD TASK: 545000-05
DETAILED INSPECTION OF PYLON FIRE SEALS
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)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
410
ENG 1 PYLON BOX AND FORWARD FAIRING
413
UPPER FWD PYLON
414
UPPER FWD PYLON
415
LOWER PYLON
420
ENG 2 PYLON BOX AND FORWARD FAIRING
423
UPPER FWD PYLON
424
UPPER FWD PYLON
425
LOWER PYLON
473
LOWER FAIRING
483
LOWER FAIRING
 D. Referenced Information
REFERENCE
DESIGNATION
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
TASK 78-32-00-010-010-A
Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A
Closing of the Thrust Reverser Halves
TASK 78-36-00-010-040-A
Opening of the Thrust Reverser Doors
TASK 78-36-00-010-040-B
Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A
Closing of the Thrust Reverser Doors
TASK 78-36-00-410-040-B
Closing of the Thrust Reverser Doors
F Pylon Fire Seals ** ON A/C NOT FOR ALL
F Pylon Fire Seals ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 54-50-00-860-054-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Make sure that the ENG/MODE selector switch is in the NORM position.
     (b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
     (c) Put the WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Put the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 54-50-00-040-071-A ** ON A/C NOT FOR ALL
B. Deactivation of the Thrust Reverser
WARNING: MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.
   (1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).
Subtask 54-50-00-010-069-A ** ON A/C NOT FOR ALL
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.
   (2) Open the thrust-reverser cowl doors (Ref. AMM TASK 78-36-00-010-040).
Subtask 54-50-00-040-071-B ** ON A/C NOT FOR ALL
D. Deactivation of the Thrust Reverser
WARNING: MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.
   (1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-012).
Subtask 54-50-00-010-069-B ** ON A/C NOT FOR ALL
E. 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.
   (2) Open the thrust-reverser cowl doors (Ref. AMM TASK 78-32-00-010-010).
Subtask 54-50-00-110-058-A ** ON A/C NOT FOR ALL
F. Preparation of the Inspection Area
   (1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
   (2) If the inspection area is not sufficiently clean, clean it with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
4. Procedure
Subtask 54-50-00-220-059-A ** ON A/C NOT FOR ALL
A. Inspection
   (1) Do a detailed inspection of the pylon fire seals for:
  • Wear
  • Degradation
  • Side openings
  • Cracks
  • Missing sections.
   (2) If you find damage on the pylon fire seals, replace them.
5. Close-up
Subtask 54-50-00-410-071-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 thrust reverser doors (Ref. AMM TASK 78-36-00-410-040).
Subtask 54-50-00-440-067-A ** ON A/C NOT FOR ALL
B. Reactivation of the Thrust Reverser
   (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 54-50-00-410-071-B ** ON A/C NOT FOR ALL
C. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust-reverser cowl doors (Ref. AMM TASK 78-32-00-410-010).
Subtask 54-50-00-440-067-B ** ON A/C NOT FOR ALL
D. Reactivation of the Thrust Reverser
   (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-012).
Subtask 54-50-00-942-064-A ** ON A/C NOT FOR ALL
E. Aircraft Maintenance Configuration
   (1) Remove the access platform(s).
   (2) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 01:59:09 UTC
"Aviabrain" 2025