W DOC AIRBUS | AMM A320F

Installation of the Lower Fairing Firewall Seals

TASK 54-57-22-400-004-A
Installation of the Lower Fairing Firewall 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: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 410
ZONE: 420
1. Reason for the Job
Self explanatory
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.06AAB1)
Polysulfide Sealant-General Purpose Fillet -
(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
420
ENG 2 PYLON BOX AND FORWARD FAIRING
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 71-00-20-400-040-A
Installation of the Power Plant
TASK 71-00-20-400-040-A-01
Installation of the Power Plant with the Engine Positioner TWW 75E (MIAG)
TASK 71-13-11-400-010-A
Installation of the Left Fan Cowl
TASK 71-13-16-400-010-B
Installation of the Right Fan Cowl (438AR, 448AR)
TASK 78-11-11-400-010-A
Installation of the Common Nozzle Assembly (CNA)
TASK 78-32-01-400-010-A
Installation of the Left Thrust Reverser Half - Eng No. 1
TASK 78-32-02-400-010-A
Installation of the Left Thrust Reverser Half - Eng No. 2
TASK 78-32-03-400-010-A
Installation of the Right Thrust Reverser Half - Eng No. 1
TASK 78-32-04-400-010-A
Installation of the Right Reverser Half - Eng. No. 2
F Lower Fairing - Firewall Seal
3. Job Set-up
Subtask 54-57-22-941-064-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) On the center pedestal, on the ENG panel 115VU:
     (a) Make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
   (2) On the ENG section of the maintenance panel 50VU:
     (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
   (3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position:
     (a) For the left pylon, in zone 410
     (b) For the right pylon, in zone 420.
4. Procedure
Subtask 54-57-22-020-058-A ** ON A/C NOT FOR ALL
A. Installation of the Firewall Seals seal(s) (1) and/or (3).
   (1) Compress and install the firewall seal(s) (1) and/or (3) on its(their) retainer(s) (2) and/or (4).
NOTE: The firewall seal(s) must be new if it(they) was(were) damaged.
   (2) Apply Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) in the gap between the firewall seal(s) (1) and/or (3) and the lower fairing.
   (3) Remove the unwanted sealant with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
Subtask 54-57-22-420-056-A ** ON A/C NOT FOR ALL
B. Installation of the Components
   (1) Install the applicable engine (Ref. AMM TASK 71-00-20-400-040).
   (2) Install the common nozzle assembly (Ref. AMM TASK 78-11-11-400-010).
   (3) Install the left and right thrust-reverser halves (Ref. AMM TASK 78-32-01-400-010) (Ref. AMM TASK 78-32-02-400-010) (Ref. AMM TASK 78-32-03-400-010) (Ref. AMM TASK 78-32-04-400-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL, 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL, 462AR
   (4) Install the fan cowls (Ref. AMM TASK 71-13-11-400-010), (Ref. AMM TASK 71-13-16-400-010):
     (a) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL, 448AR
5. Close-up
Subtask 54-57-22-410-057-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Remove all the fixtures, tools, test and support equipment used during this procedure.
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 12:51:11 UTC
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