DOC AIRBUS | AMM A320FRemoval of the Scavenge Screen Plugs from the Lubrication Unit [CFMB]
TASK 79-21-10-000-007-A
Removal of the Scavenge Screen Plugs from the Lubrication Unit
1. Reason for the Job
To permit the check of the scavenge screen plugs for debris, the removal/installation of an optional magnetic bar and the dry-out and relubrication procedure.
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 79-21-10-941-058-A ** ON A/C NOT FOR ALL
Subtask 79-21-10-020-061-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:14:05 UTC
Removal of the Scavenge Screen Plugs from the Lubrication Unit
1. Reason for the Job
To permit the check of the scavenge screen plugs for debris, the removal/installation of an optional magnetic bar and the dry-out and relubrication procedure.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | CONTAINER 5 L (1.32 USGAL) |
| 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 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
Scavenge Screen Plug (Typical)Subtask 79-21-10-941-058-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 79-21-10-010-063-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 79-21-10-020-061-A ** ON A/C NOT FOR ALL
A. Removal of the Scavenge Screen Plugs
(2) Cut and remove the lockwires from the scavenge screen plugs (30).
(3) Remove the scavenge screen plugs from the lubrication unit.
(4) Remove and discard the O-ring (10).
WARNING:
USE PROTECTIVE GLOVES AND BE CAREFUL WITH OIL SPLASHES WHEN YOU DISCONNECT OIL TUBES. HOT OIL CAN CAUSE DEEP BURNS.
CAUTION:
DO NOT REMOVE THE BACK-UP SEAL. THE BACK-UP SEAL IS NOT AN EXPENDABLE PART.
(1) Put a CONTAINER 5 L (1.32 USGAL) below the lubrication unit. (2) Cut and remove the lockwires from the scavenge screen plugs (30).
(3) Remove the scavenge screen plugs from the lubrication unit.
(4) Remove and discard the O-ring (10).