DOC AIRBUS | AMM A320FRemoval of the Gearbox Breather Outlet Duct (GBOD) [IAE]
TASK 72-61-49-000-010-B
Removal of the Gearbox Breather Outlet Duct (GBOD)
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 72-61-49-941-051-A ** ON A/C NOT FOR ALL
Subtask 72-61-49-020-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:01:31 UTC
Removal of the Gearbox Breather Outlet Duct (GBOD)
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | COVER - BLANKING |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
Gearbox Breather Outlet DuctSubtask 72-61-49-941-051-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 72-61-49-010-051-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 cowls (Ref. AMM TASK 71-13-00-010-010):
(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 72-61-49-020-051-A ** ON A/C NOT FOR ALL
A. Remove the Gearbox Breather Outlet Duct (GBOD)
(1) Remove the three bolts (2) that attach the GBOD (3) to the mounting pad (1) on the gearbox casing. Make a note of the position of the GBOD, it must be put in the same position on installation.
(2) Remove the GBOD (3) from the engine.
(3) Remove and discard the packing (4) from the GBOD.
(4) Put a COVER - BLANKING on the mounting pad (1) on the gearbox casing.
(1) Remove the three bolts (2) that attach the GBOD (3) to the mounting pad (1) on the gearbox casing. Make a note of the position of the GBOD, it must be put in the same position on installation.
(2) Remove the GBOD (3) from the engine.
(3) Remove and discard the packing (4) from the GBOD.
(4) Put a COVER - BLANKING on the mounting pad (1) on the gearbox casing.