DOC AIRBUS | AMM A320FDraining of the Accessory Drive Section
TASK 12-13-79-610-004-C
Draining of the Accessory Drive Section
1. Reason for the Job
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 12-13-79-941-058-A ** ON A/C NOT FOR ALL
Subtask 12-13-79-680-055-A ** ON A/C NOT FOR ALL
Subtask 12-13-79-410-060-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:10:19 UTC
Draining of the Accessory Drive Section
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 | CONTAINER 3 L(3/4 USGAL) |
| No specific | AR | CONTAINER 5 L (1.32 USGAL) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 130 and 110 lbf.in (1.47 and 1.24 m.daN )  | |
| No specific | Torque wrench: range to between 205 and 185 lbf.in (2.32 and 2.09 m.daN ) | |
| 856A2794 | 1 | TOOL SET SEAL FITTING AGB-TGB |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2442) | engine oil |
| (Material No.CP8001) | lockwire 0.032 in. (0.8 mm) dia. |
| (Material No.CP8002) | lockwire 0.032 in. (0.8 mm) dia |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 20 | O-RING | AIPC 72-62-00-05-040 |
| 30 | O-RING | AIPC 72-63-00-07-060 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-040-B | Closing of the Fan Cowl Doors |
Location of Drain Plugs on Accessory DriveSubtask 12-13-79-941-058-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 12-13-79-010-060-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 12-13-79-680-055-A ** ON A/C NOT FOR ALL
A. Drain the accessory drive:
(2) Cut and remove lockwire, remove drain plugs (50 and 60) and completely drain oil.
(3) Remove O-rings (20 and 30) from grooves and discard.
Subtask 12-13-79-420-052-A ** ON A/C NOT FOR ALL WARNING:
USE PROTECTIVE GLOVES AND BE CAREFUL WITH OIL SPLASHES WHEN YOU DISCONNECT OIL TUBES. HOT OIL CAN CAUSE DEEP BURNS.
(1) Place a CONTAINER 5 L (1.32 USGAL) below the drain port of AGB, and a CONTAINER 3 L(3/4 USGAL) below the drain port of TGB. (2) Cut and remove lockwire, remove drain plugs (50 and 60) and completely drain oil.
(3) Remove O-rings (20 and 30) from grooves and discard.
B. Install the drain plugs as follows:
(1) Install the 856A2794 TOOL SET SEAL FITTING AGB-TGB (856A2794G01) on the drain plugs (50 and 60).
(2) Apply a thin layer of engine oil (Material No.CP2442) to the outer surface of 856A2794 TOOL SET SEAL FITTING AGB-TGB (856A2794G01) to prevent damage to the O-rings.
(3) Apply a thin layer of engine oil (Material No.CP2442) to the O-rings.
(4) Install a new AIPC 72-62-00-05-040 O-RING (20) and new AIPC 72-63-00-07-060 O-RING (30) in the groove of each drain plug.
(5) Remove the 856A2794 TOOL SET SEAL FITTING AGB-TGB (856A2794G01) from the drain plugs (50 and 60).
(6) Apply a thin layer of engine oil (Material No.CP2442) to the threads of the drain plugs.
(7) Install the AGB drain plug (60). TORQUE to between 205 and 185 lbf.in (2.32 and 2.09 m.daN ) and wirelock the drain plug with CP8001 lockwire 0.032 in. (0.8 mm) dia.
(8) Install the Transfer Gearbox (TGB) drain plug (50). TORQUE to between 130 and 110 lbf.in (1.47 and 1.24 m.daN ) and wirelock the drain plug with CP8001 lockwire 0.032 in. (0.8 mm) dia. CP8002 lockwire 0.032 in. (0.8 mm) dia
5. Close-up(1) Install the 856A2794 TOOL SET SEAL FITTING AGB-TGB (856A2794G01) on the drain plugs (50 and 60).
(2) Apply a thin layer of engine oil (Material No.CP2442) to the outer surface of 856A2794 TOOL SET SEAL FITTING AGB-TGB (856A2794G01) to prevent damage to the O-rings.
(3) Apply a thin layer of engine oil (Material No.CP2442) to the O-rings.
(4) Install a new AIPC 72-62-00-05-040 O-RING (20) and new AIPC 72-63-00-07-060 O-RING (30) in the groove of each drain plug.
(5) Remove the 856A2794 TOOL SET SEAL FITTING AGB-TGB (856A2794G01) from the drain plugs (50 and 60).
(6) Apply a thin layer of engine oil (Material No.CP2442) to the threads of the drain plugs.
(7) Install the AGB drain plug (60). TORQUE to between 205 and 185 lbf.in (2.32 and 2.09 m.daN )
and wirelock the drain plug with (8) Install the Transfer Gearbox (TGB) drain plug (50). TORQUE to between 130 and 110 lbf.in (1.47 and 1.24 m.daN )
and wirelock the drain plug with Subtask 12-13-79-410-060-A ** ON A/C NOT FOR ALL