DOC AIRBUS | AMM A320FInstallation of the Rear Pylon Fairing (RPF) - Aft Pylon Fairing (APF) Closing Assembly
TASK 54-54-00-400-807-A
Installation of the Rear Pylon Fairing (RPF) - Aft Pylon Fairing (APF) Closing Assembly
Self explanatory
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 54-54-00-941-070-A
Subtask 54-54-00-420-079-A
Subtask 54-54-00-440-065-A
[Rev.10 from 2021]
2026.04.01 12:50:58 UTC
Installation of the Rear Pylon Fairing (RPF) - Aft Pylon Fairing (APF) Closing Assembly
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.
1. Reason for the JobSelf 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 | SCRAPER - NON METALLIC |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06ABB2) | Polysulfide Sealant-Fuel Tank Fillet 120 degre Celsius |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 470 | ENGINE 1 AFT PYLON |
| 480 | ENGINE 2 AFT PYLON |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 78-30-00-040-807-A | Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU) |
| TASK 78-30-00-440-807-A | Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU) |
RPF-APF Closing AssemblySubtask 54-54-00-941-070-A
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) Make sure that the WARNING NOTICE(S) is(are) 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) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to energize FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position:
(a) For the left pylon, at zones 410 and 470
(b) For the right pylon, at zones 420 and 480.
Subtask 54-54-00-040-070-A (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) Make sure that the WARNING NOTICE(S) is(are) 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) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to energize FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position:
(a) For the left pylon, at zones 410 and 470
(b) For the right pylon, at zones 420 and 480.
B. Deactivation of the Thrust Reverser
Subtask 54-54-00-110-058-A 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 sure that the thrust reverser is unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-807). C. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) If the parts are dirty, clean them with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Do an inspection of the component interfaces and the adjacent area.
4. Procedure(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) If the parts are dirty, clean them with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Do an inspection of the component interfaces and the adjacent area.
Subtask 54-54-00-420-079-A
A. Installation of the RPF-APF Closing Assembly
(1) Make sure that the sealant is in the correct condition at the applicable location.
(2) If the sealant is not in the correct condition:
(a) Remove the sealant from the applicable location with the SCRAPER - NON METALLIC.
(b) Clean the applicable area of the pylon structure and the internal face of the RPF-APF closing assemblies (1) and (6) with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(c) Apply a bead of Polysulfide Sealant-Fuel Tank Fillet 120 degre Celsius (Material No.06ABB2) on the pylon structure at the applicable location.
(3) Make sure that clearance A between the fastener hole of the pylon structure and the bead of sealant is 2 -1 mm or +1 mm (0.08 -0.04 in. or +0.04 in.).
(4) Make sure that width B of the sealant is 10 mm (0.39 in.).
(5) Make sure that thickness C of the sealant is 1 mm (0.04 in.).
(6) Make sure that thickness D of the sealant is 1 mm (0.04 in.).
(7) Put the RPF-APF closing assemblies (1) and (6) in position and hold them.
Subtask 54-54-00-820-053-A (1) Make sure that the sealant is in the correct condition at the applicable location.
(2) If the sealant is not in the correct condition:
(a) Remove the sealant from the applicable location with the SCRAPER - NON METALLIC.
(b) Clean the applicable area of the pylon structure and the internal face of the RPF-APF closing assemblies (1) and (6) with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(c) Apply a bead of Polysulfide Sealant-Fuel Tank Fillet 120 degre Celsius (Material No.06ABB2) on the pylon structure at the applicable location.
(3) Make sure that clearance A between the fastener hole of the pylon structure and the bead of sealant is 2 -1 mm or +1 mm (0.08 -0.04 in. or +0.04 in.).
(4) Make sure that width B of the sealant is 10 mm (0.39 in.).
(5) Make sure that thickness C of the sealant is 1 mm (0.04 in.).
(6) Make sure that thickness D of the sealant is 1 mm (0.04 in.).
(7) Put the RPF-APF closing assemblies (1) and (6) in position and hold them.
CAUTION:
MAKE SURE THAT YOU INSTALL EACH OF THE SCREWS IN ITS CORRECT POSITION. THE SCREWS HAVE DIFFERENT LENGTHS. IF YOU DO NOT INSTALL EACH OF THE SCREWS IN ITS CORRECT POSITION, YOU CAN CAUSE DAMAGE.
(8) Install the screws (2), (3), (4), (5) and tighten them.B. Check of the Clearances
(1) Make sure that peripheral clearance J1 between the APF (2) and the RPF-APF closing assembly (1) is 3.6 +2 mm or -2 mm (0.1417 +0.0787 in. or -0.0787 in.).
(2) Make sure that peripheral clearances J2 and J3 between the RPF (3) and the RPF-APF closing assembly (1) is 3.6 +2 mm or -2 mm (0.1417 +0.0787 in. or -0.0787 in.).
(3) Make sure that out-of-flush dimension A1 between the APF (2) and the RPF-APF closing assembly (1) is 0 +0.6 mm or -0.6 mm (0.0000 +0.0236 in. or -0.0236 in.).
(4) Make sure that out-of-flush dimension A2 between the RPF (3) and the RPF-APF closing assembly (1) is 0 +0.6 mm or -0.6 mm (0.0000 +0.0236 in. or -0.0236 in.).
(5) Make sure that out-of-flush dimension A3 between the RPF (3) and the RPF-APF closing assembly (1) is 0.6 +0.8 mm or -0.8 mm (0.0236 +0.0315 in. or -0.0315 in.).
5. Close-up(1) Make sure that peripheral clearance J1 between the APF (2) and the RPF-APF closing assembly (1) is 3.6 +2 mm or -2 mm (0.1417 +0.0787 in. or -0.0787 in.).
(2) Make sure that peripheral clearances J2 and J3 between the RPF (3) and the RPF-APF closing assembly (1) is 3.6 +2 mm or -2 mm (0.1417 +0.0787 in. or -0.0787 in.).
(3) Make sure that out-of-flush dimension A1 between the APF (2) and the RPF-APF closing assembly (1) is 0 +0.6 mm or -0.6 mm (0.0000 +0.0236 in. or -0.0236 in.).
(4) Make sure that out-of-flush dimension A2 between the RPF (3) and the RPF-APF closing assembly (1) is 0 +0.6 mm or -0.6 mm (0.0000 +0.0236 in. or -0.0236 in.).
(5) Make sure that out-of-flush dimension A3 between the RPF (3) and the RPF-APF closing assembly (1) is 0.6 +0.8 mm or -0.8 mm (0.0236 +0.0315 in. or -0.0315 in.).
Subtask 54-54-00-440-065-A
A. Reactivation of the Thrust Reverser
(1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 54-54-00-942-059-A (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-807).
B. Close Access
(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).