DOC AIRBUS | AMM A320FInstallation of the APU Substitution Kit (APS 3200)
TASK 49-11-00-400-003-A
Installation of the APU Substitution Kit (APS 3200)
Installation of the APU Substitution Kit
Do this task only after you did the deactivation procedure of the APU by the APU substitution kit (Ref. AMM TASK 49-10-00-040-007-A01).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 49-11-00-860-050-A ** ON A/C NOT FOR ALL
Subtask 49-11-00-420-056-A ** ON A/C NOT FOR ALL
Subtask 49-11-00-410-056-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:26:37 UTC
Installation of the APU Substitution Kit (APS 3200)
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
MAKE SURE THAT AN APU SUBSTITUTION KIT IS INSTALLED WHEN THE AIRCRAFT IS TO FLY WITHOUT AN APU INSTALLED.
THIS IS A TEMPORARY PROCEDURE TO:
1. Reason for the Job- ATTACH THE MOUNTING STRAPS AND ELECTRICAL CABLES
- INSTALL BLANKING CAPS
Installation of the APU Substitution Kit
Do this task only after you did the deactivation procedure of the APU by the APU substitution kit (Ref. AMM TASK 49-10-00-040-007-A01).
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 | CAP - BLANKING |
| No specific | AR | PLUG - BLANKING |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03QBA1) | Dry lubricant-General Assembly - - |
| No specific | lockwire-corrosion resistant steel 0.8 mm (0.032 in.) dia. |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 315AL, 316AR |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 10 | CABLE MOUNT ASSEMBLY | AIPC 49-11-04-05-010 |
| 0 | APU SUBSTITUTION KIT WITHOUT GENERATOR | AIPC 49-11-04-05-220 |
| 3 | TRANSVERSE SUPPORT | AIPC 49-11-04-10-010 |
| 0 | APU SUBSTITUTION KIT | AIPC 49-11-04-10-330 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| 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 52-41-18-000-001-A | Removal of the APU Exhaust Access-Fairing |
| TASK 52-41-18-400-001-A | Installation of the APU Exhaust Access-Fairing |
Suspension and electrical ConnectionsSubtask 49-11-00-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) On the panel 25VU make sure that the APU MASTER SW pushbutton switch is off.
(3) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
(4) Make sure that the APU air intake is closed.
(5) Make sure that the APU LP fuel valve is closed.
Subtask 49-11-00-010-056-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) On the panel 25VU make sure that the APU MASTER SW pushbutton switch is off.
(3) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
(4) Make sure that the APU air intake is closed.
(5) Make sure that the APU LP fuel valve is closed.
B. Get Access
(1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below APU access doors 315AL and 316AR.
(2) Open APU access doors 315AL and 316AR (Ref. AMM TASK 52-41-00-010-001).
(3) Remove the APU exhaust access-fairing (Ref. AMM TASK 52-41-18-000-001).
(4) Set LIGHT control switch 11LJ to the ON position.
Subtask 49-11-00-865-057-A ** ON A/C NOT FOR ALL (1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below APU access doors 315AL and 316AR.
(2) Open APU access doors 315AL and 316AR (Ref. AMM TASK 52-41-00-010-001).
(3) Remove the APU exhaust access-fairing (Ref. AMM TASK 52-41-18-000-001).
(4) Set LIGHT control switch 11LJ to the ON position.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | APU/FUEL/BLOW OFF/PUMP | 2QC | B14 |
| 121VU | APU/FUEL/BLOW OFF/CTL | 1QC | K39 |
| 121VU | APU/FIRE AND OVHT/DET/LOOP B | 2WG | L44 |
| 121VU | APU/FIRE AND OVHT/DET/LOOP A | 1WG | L43 |
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
| 121VU | APU/FIRE/EXTIG/SQUIB/B | 2WF | L39 |
| 121VU | APU/FIRE/EXTIG/SQUIB/A | 1WF | L38 |
| 121VU | APU/FIRE/LP VALVE/NORM | 4WF | M42 |
| 121VU | APU/FIRE/LP VALVE/STBY | 3WF | M41 |
| 121VU | APU/FUEL/LP VALVE/CTL | 1QF | M40 |
| 121VU | APU/FUEL/LP VALVE/SPLY | 2QF | M39 |
| 121VU | APU/FUEL/PUMP/CTL | 3QC | M38 |
Subtask 49-11-00-420-056-A ** ON A/C NOT FOR ALL
A. Installation of the APU Substitution Kit
(1) Install the AIPC 49-11-04-10-010 TRANSVERSE SUPPORT (3) from the AIPC 49-11-04-10-330 APU SUBSTITUTION KIT (0) to the left and right APU mount assemblies with washers (2) and nuts (1).
(2) Install the AIPC 49-11-04-05-010 CABLE MOUNT ASSEMBLY (10) of the AIPC 49-11-04-05-220 APU SUBSTITUTION KIT WITHOUT GENERATOR (0) on the transverse support (3) with the bolts (6), the washers (5) and the nuts (4).
(3) Connect the starter cables (20) to the transverse support (3) with the nuts (21)and the washers (22).
(4) Connect the generator cables (7) to the cable mount assembly (10) with the nuts (9) and the washers (8).
(5) Connect the generator control cable (40) to the dummy plug on the cable mount assembly (10).
(6) Install the CAP - BLANKING (19) on the connector sockets 7120VC, 7118VC and 7138VC, which are on the forward bulkhead FR80.
(7) Install the rear suspension assembly (18) with the nut (13) to the aft mount assembly (11).
(8) Install and support the rear suspension assembly (18) with the bolt (14), the washers (16) and the nut (17) to the top bracket (15).
(9) Before installing the blanking plug to the fuel feed pipe (29), apply Dry lubricant-General Assembly - - (Material No.03QBA1) to the internal threads.
(10) Install the PLUG - BLANKING (28) to the APU fuel feed pipe (29).
(11) Attach the APU fuel feed pipe (29) to the bracket on the bulkhead with lockwire-corrosion resistant steel 0.8 mm (0.032 in.) dia..
(12) Install the blanking plugs (38) on the APU access door 316AR drain interfaces.
(13) Install the exhaust muffler plug (32) to the APU exhaust outlet (33).
(14) Install the blanking plug (27) to the exhaust muffler drain (30).
(15) Install the bleed-air duct plug (35) to the bleed air duct (24) with the tie-rods (23), the bolts (34), the washers (36) and the nuts (37).
(16) Install the oil-cooler outlet-duct plug (31) on door 315AL with the screws (26) and the washers (25).
Subtask 49-11-00-865-058-A ** ON A/C NOT FOR ALL (1) Install the AIPC 49-11-04-10-010 TRANSVERSE SUPPORT (3) from the AIPC 49-11-04-10-330 APU SUBSTITUTION KIT (0) to the left and right APU mount assemblies with washers (2) and nuts (1).
(2) Install the AIPC 49-11-04-05-010 CABLE MOUNT ASSEMBLY (10) of the AIPC 49-11-04-05-220 APU SUBSTITUTION KIT WITHOUT GENERATOR (0) on the transverse support (3) with the bolts (6), the washers (5) and the nuts (4).
(3) Connect the starter cables (20) to the transverse support (3) with the nuts (21)and the washers (22).
(4) Connect the generator cables (7) to the cable mount assembly (10) with the nuts (9) and the washers (8).
(5) Connect the generator control cable (40) to the dummy plug on the cable mount assembly (10).
(6) Install the CAP - BLANKING (19) on the connector sockets 7120VC, 7118VC and 7138VC, which are on the forward bulkhead FR80.
(7) Install the rear suspension assembly (18) with the nut (13) to the aft mount assembly (11).
(8) Install and support the rear suspension assembly (18) with the bolt (14), the washers (16) and the nut (17) to the top bracket (15).
(9) Before installing the blanking plug to the fuel feed pipe (29), apply Dry lubricant-General Assembly - - (Material No.03QBA1) to the internal threads.
(10) Install the PLUG - BLANKING (28) to the APU fuel feed pipe (29).
(11) Attach the APU fuel feed pipe (29) to the bracket on the bulkhead with lockwire-corrosion resistant steel 0.8 mm (0.032 in.) dia..
(12) Install the blanking plugs (38) on the APU access door 316AR drain interfaces.
(13) Install the exhaust muffler plug (32) to the APU exhaust outlet (33).
(14) Install the blanking plug (27) to the exhaust muffler drain (30).
(15) Install the bleed-air duct plug (35) to the bleed air duct (24) with the tie-rods (23), the bolts (34), the washers (36) and the nuts (37).
(16) Install the oil-cooler outlet-duct plug (31) on door 315AL with the screws (26) and the washers (25).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | APU/FIRE AND OVHT/DET/LOOP B | 2WG | L44 |
| 121VU | APU/FIRE AND OVHT/DET/LOOP A | 1WG | L43 |
| 121VU | APU/FIRE/EXTIG/SQUIB/B | 2WF | L39 |
| 121VU | APU/FIRE/EXTIG/SQUIB/A | 1WF | L38 |
Subtask 49-11-00-410-056-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) Set LIGHT control switch 11LJ to the OFF position.
(3) Close APU access doors 315AL and 316AR (Ref. AMM TASK 52-41-00-410-001).
(4) Install the APU exhaust access-fairing (Ref. AMM TASK 52-41-18-400-001).
(5) Remove the access platform(s).
Subtask 49-11-00-860-063-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Set LIGHT control switch 11LJ to the OFF position.
(3) Close APU access doors 315AL and 316AR (Ref. AMM TASK 52-41-00-410-001).
(4) Install the APU exhaust access-fairing (Ref. AMM TASK 52-41-18-400-001).
(5) Remove the access platform(s).
B. Aircraft Maintenance Configuration
(1) Put a warning notice in the cockpit to tell the persons that the APU is not installed.
(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(1) Put a warning notice in the cockpit to tell the persons that the APU is not installed.
NOTE: The circuit breakers 1KD, 2KD, 1QC, 2QC, 3QC, 1QF and 2QF must be opened and tagged and must remain so until the APU is reinstalled.
(2) Make an entry in the aircraft technical log book. (3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).