DOC AIRBUS | AMM A320FInstallation of the fixed APU Diverter (APS 3200)
TASK 49-16-41-400-004-A
Installation of the fixed APU Diverter (APS 3200)
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 49-16-41-860-060-B ** ON A/C NOT FOR ALL
Subtask 49-16-41-140-051-B ** ON A/C NOT FOR ALL
Subtask 49-16-41-865-072-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:27:46 UTC
Installation of the fixed APU Diverter (APS 3200)
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 | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | SCRAPER - NON METALLIC |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06AAB1) | Polysulfide Sealant-General Purpose Fillet - |
| (Material No.06AEB2) | Polysulfide Sealant-Low Adhesion Fillet Structure |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14DBB1) | Release Agent-- Liquid Wax - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 314AR, 315AL, 316AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-720-005-A | Check of the Electrical Bonding of the Different Components (but not the Fluid Systems and Components Installed on Composite materials) |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| TASK 49-16-43-000-002-A | Removal of the Air Intake Flap (APS 3200) |
| TASK 49-16-43-400-002-A | Installation of the Air Intake Flap (APS 3200) |
| TASK 52-41-00-010-001-A | Open the APU Doors for Access |
| TASK 52-41-00-410-001-A | Close the APU Doors after Access |
| TASK 52-41-23-010-801-A | Opening of Access Door 314AR |
| TASK 52-41-23-410-801-A | Closing of Access Door 314AR |
Fixed DiverterSubtask 49-16-41-860-060-B ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the warning notice is in position on panel 25VU to tell persons not to start the APU.
(2) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001) .
(3) Make sure that the hydraulic systems are depressurized (Ref. AMM TASK 29-14-00-614-001).
(5) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the APU access doors 315AL, 316AR and the maintenance door 314AR.
(6) Make sure that access door 314AR is open and safetied in the open position.
(Ref. AMM TASK 52-41-23-010-801).
(7) Make sure that the LIGHT control switch 3LJ is set to the ON position.
(8) Make sure that the APU access doors 315AL 316AR are open (Ref. AMM TASK 52-41-00-010-001) .
(9) Make sure that the LIGHT control switch 11LJ is set to the ON position.
(10) Make sure that the air intake flap is removed (Ref. AMM TASK 49-16-43-000-002).
Subtask 49-16-41-865-070-A ** ON A/C NOT FOR ALL (1) Make sure that the warning notice is in position on panel 25VU to tell persons not to start the APU.
(2) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001) .
(3) Make sure that the hydraulic systems are depressurized (Ref. AMM TASK 29-14-00-614-001).
WARNING:
BEFORE YOU START WORK, YOU MUST PUT ON A SAFETY HARNESS AND ATTACH IT TO THE ACCESS PLATFORM. WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.
(4) Put on and attach a safety harness before you start work in the work area(5) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the APU access doors 315AL, 316AR and the maintenance door 314AR.
(6) Make sure that access door 314AR is open and safetied in the open position.
(Ref. AMM TASK 52-41-23-010-801).
(7) Make sure that the LIGHT control switch 3LJ is set to the ON position.
(8) Make sure that the APU access doors 315AL 316AR are open (Ref. AMM TASK 52-41-00-010-001) .
(9) Make sure that the LIGHT control switch 11LJ is set to the ON position.
(10) Make sure that the air intake flap is removed (Ref. AMM TASK 49-16-43-000-002).
B. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
Subtask 49-16-41-140-051-B ** ON A/C NOT FOR ALL
A. Preparation for installation.
(2) Clean the component interface of the aircraft structure with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Make sure that the component interface of the fixed diverter (12) is clean of sealant.
Subtask 49-16-41-420-054-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 all used sealant from component interface and/or adjacent area of the aircraft structure with a SCRAPER - NON METALLIC. (2) Clean the component interface of the aircraft structure with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Make sure that the component interface of the fixed diverter (12) is clean of sealant.
B. Installation of the fixed Diverter.
(2) Apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) with a non-metallic scraper to the surfaces of the fixed diverter (12) and the component interface of the aircraft structure.
(4) Install the screws (7) and the washers (8).
(5) Apply Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the SEALANT AREA.
(6) Install the screws (4) and clean them from the sealant with a lint-free cloth.
(7) Install the washers (6) and the nuts (5).
(8) Put the shim (3) between the FR77 and the fixed diverter (12).
(10) Make sure that the electrical bonding of the screws (1) is not higher than 2 milliohms (Ref. AMM TASK 20-28-00-720-005).
(11) Bond the head of the screws (1) with washers (2) (Ref. AMM TASK 20-28-00-912-802).
(12) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) between the fixed diverter and the aircraft structure and make it smooth.
5. Close-upWARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Apply Release Agent-- Liquid Wax - (Material No.14DBB1) with a non-metallic scraper to the surfaces of the fixed diverter (12) and the component interface of the aircraft structure. (2) Apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) with a non-metallic scraper to the surfaces of the fixed diverter (12) and the component interface of the aircraft structure.
NOTE: Make sure that the screw holes do not show any signs of sealant.
(3) Put the fixed diverter (12) in position and install the screws (9) and the washers (10), (11) and tighten them. (4) Install the screws (7) and the washers (8).
(5) Apply Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the SEALANT AREA.
(6) Install the screws (4) and clean them from the sealant with a lint-free cloth.
(7) Install the washers (6) and the nuts (5).
(8) Put the shim (3) between the FR77 and the fixed diverter (12).
NOTE: If necessary use one or two shims.
(9) Install the screws (1) and the washers (2). (10) Make sure that the electrical bonding of the screws (1) is not higher than 2 milliohms (Ref. AMM TASK 20-28-00-720-005).
(11) Bond the head of the screws (1) with washers (2) (Ref. AMM TASK 20-28-00-912-802).
(12) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) between the fixed diverter and the aircraft structure and make it smooth.
Subtask 49-16-41-865-072-A ** ON A/C NOT FOR ALL
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 49-16-41-410-054-B ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
B. Close Access
(1) Install the air intake flap (Ref. AMM TASK 49-16-43-400-002).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Set the LIGHT control switch 11LJ to the OFF position.
(4) Close the APU access doors 315AL, 316AR (Ref. AMM TASK 52-41-00-410-001).
(5) Set the LIGHT control switch 3LJ to the OFF position.
(6) Close access door 314AR (Ref. AMM TASK 52-41-23-410-801).
(7) Remove the access platform(s).
Subtask 49-16-41-860-061-B ** ON A/C NOT FOR ALL (1) Install the air intake flap (Ref. AMM TASK 49-16-43-400-002).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Set the LIGHT control switch 11LJ to the OFF position.
(4) Close the APU access doors 315AL, 316AR (Ref. AMM TASK 52-41-00-410-001).
(5) Set the LIGHT control switch 3LJ to the OFF position.
(6) Close access door 314AR (Ref. AMM TASK 52-41-23-410-801).
(7) Remove the access platform(s).
C. Put the aircraft back to its initial configuration.
(1) Put the related hydraulic system in the pressurized configuration (Ref. AMM TASK 29-00-00-864-001).
(2) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001)
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(4) Remove the WARNING NOTICE(S).
(1) Put the related hydraulic system in the pressurized configuration (Ref. AMM TASK 29-00-00-864-001).
(2) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001)
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(4) Remove the WARNING NOTICE(S).