DOC AIRBUS | AMM A320FInstallation of the Magnetic Drain Plug (APS 3200)
TASK 49-91-42-400-002-A
Installation of the Magnetic Drain Plug (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. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 49-91-42-860-051-A ** ON A/C NOT FOR ALL
Subtask 49-91-42-420-053-A ** ON A/C NOT FOR ALL
Subtask 49-91-42-410-054-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:41:52 UTC
Installation of the Magnetic Drain Plug (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 | Torque wrench: range to between 0.73 and 0.57 m.daN (64.60 and 50.44 lbf.in )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03ABA1) | Synthetic base Lubricating Oil-Turbine Engine - - |
| (Material No.03ABB1) | Synthetic base Lubricating Oil-Turbine Engine Low Temp. - |
| (Material No.14QFB1) | Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 315AL, 316AR |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 4 | O-RING | AIPC 49-91-04-50-140 |
| 2 | PREFORMED PACKING | AIPC 49-91-42-50-010 |
| 4 | O-RING | AIPC 49-91-84-20-180 |
| 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 49-00-00-710-008-A | Operational Test of the APU |
| TASK 49-90-00-600-004-A | Check Oil Level and Replenish (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 |
Magnetic Drain PlugSubtask 49-91-42-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (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 there is a warning notice in the cockpit to tell persons not to start the APU.
(4) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
(5) Make sure that the access platform is in position below the APU compartment.
(6) Make sure that the APU access doors are open (Ref. AMM TASK 52-41-00-010-001).
(7) Make sure that the LIGHT control switch 11LJ is set to the on position.
Subtask 49-91-42-865-060-A ** ON A/C NOT FOR ALL (1) Make sure that the aircraft electrical circuits are energized (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 there is a warning notice in the cockpit to tell persons not to start the APU.
(4) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).
(5) Make sure that the access platform is in position below the APU compartment.
(6) Make sure that the APU access doors are open (Ref. AMM TASK 52-41-00-010-001).
(7) Make sure that the LIGHT control switch 11LJ is set to the on position.
B. 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 | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
Subtask 49-91-42-420-053-A ** ON A/C NOT FOR ALL
A. Installation of the Magnetic Drain Plug
(1) Apply Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) on the new AIPC 49-91-04-50-140 O-RING (4) or AIPC 49-91-84-20-180 O-RING (4).
(2) Install the new O-ring (4) on the plug (1).
(3) Install the plug (1) into the gearbox.
(4) TORQUE the plug (1) to between 0.73 and 0.57 m.daN (64.60 and 50.44 lbf.in ).
(5) Safety the plug (1) with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(6) Apply Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) to the new AIPC 49-91-42-50-010 PREFORMED PACKING (2).
(7) Install the new preformed packing (2) on the magnetic element (3).
(8) Install the magnetic element (3) in the gearbox and tighten it with your hand.
(9) Make the area dry with a Textile-Lint free Cotton - (Material No.14SBA1) to remove the unwanted oil from the gearbox surface.
(10) Do the Servicing of the oil system (Ref. AMM TASK 49-90-00-600-004).
Subtask 49-91-42-865-061-A ** ON A/C NOT FOR ALL (1) Apply Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) on the new AIPC 49-91-04-50-140 O-RING (4) or AIPC 49-91-84-20-180 O-RING (4).
(2) Install the new O-ring (4) on the plug (1).
(3) Install the plug (1) into the gearbox.
(4) TORQUE the plug (1) to between 0.73 and 0.57 m.daN (64.60 and 50.44 lbf.in )
. (5) Safety the plug (1) with
(6) Apply Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) to the new AIPC 49-91-42-50-010 PREFORMED PACKING (2).
(7) Install the new preformed packing (2) on the magnetic element (3).
(8) Install the magnetic element (3) in the gearbox and tighten it with your hand.
(9) Make the area dry with a Textile-Lint free Cotton - (Material No.14SBA1) to remove the unwanted oil from the gearbox surface.
(10) Do the Servicing of the oil system (Ref. AMM TASK 49-90-00-600-004).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 49-91-42-790-051-A ** 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 |
C. Leak Test
(1) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
(a) Make sure that the magnetic drain plug does not leak.
5. Close-up(1) Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
(a) Make sure that the magnetic drain plug does not leak.
Subtask 49-91-42-410-054-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 the LIGHT control switch 11LJ to the off position.
(3) Close the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-410-001).
(4) Remove the access platform(s).
Subtask 49-91-42-860-052-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 the LIGHT control switch 11LJ to the off position.
(3) Close the APU access doors 315AL 316AR (Ref. AMM TASK 52-41-00-410-001).
(4) Remove the access platform(s).
B. Aircraft Maintenance Configuration
(1) Put the related hydraulic system in the pressurized configuration (Ref. AMM TASK 29-00-00-864-001).
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(3) 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 aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(3) Remove the WARNING NOTICE(S).