DOC AIRBUS | AMM A320FVisual Inspection of the Core Drain Mast [CFML]
TASK 71-71-42-200-801-A
Visual Inspection of the Core Drain Mast
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 71-71-42-941-057-A
Subtask 71-71-42-210-056-A
Subtask 71-71-42-942-054-A
[Rev.10 from 2021]
2026.04.02 06:33:33 UTC
Visual Inspection of the Core Drain Mast
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 | 1 | INSPECTION CREEPER |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-71-42-000-802-A | Removal of the Core Drain Mast |
| TASK 71-71-42-400-802-A | Installation of the Core Drain Mast |
Core Drain MastSubtask 71-71-42-941-057-A
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 71-71-42-010-064-A (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate:
- The ENG/MODE selector switch, and
- The ENG/MASTER 1(2) control switch.
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Put an INSPECTION CREEPER in position under the engine.
4. Procedure(1) Put an INSPECTION CREEPER in position under the engine.
Subtask 71-71-42-210-056-A
A. Visual Inspection of the Core Drain Mast
(1) Examine the openings in the core drain mast for unwanted material that could cause blockage of fluids. No blockage is permitted.
(a) If there is a blockage, remove the unwanted material from the core drain mast. Clean the openings in the core drain mast as necessary.
5. Close-up(1) Examine the openings in the core drain mast for unwanted material that could cause blockage of fluids. No blockage is permitted.
(a) If there is a blockage, remove the unwanted material from the core drain mast. Clean the openings in the core drain mast as necessary.
NOTE: Nicks, cracks and dents are permitted if they do not cause a blockage.
(b) If you cannot remove the blockage, replace the core drain mast (Ref. AMM TASK 71-71-42-000-802) and (Ref. AMM TASK 71-71-42-400-802). Subtask 71-71-42-942-054-A
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the INSPECTION CREEPER.
(3) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the INSPECTION CREEPER.
(3) Remove the WARNING NOTICE(S).