DOC AIRBUS | AMM A320FCleaning of the Fan Blades [CFML]
TASK 72-21-20-100-801-A
Cleaning of the Fan Blades
This procedure gives instructions to clean the fan blades.
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
3. Job Set-up
Subtask 72-21-20-941-052-A
Subtask 72-21-20-110-050-A
Subtask 72-21-20-942-051-A
[Rev.10 from 2021]
2026.04.01 02:51:38 UTC
Cleaning of the Fan Blades
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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobThis procedure gives instructions to clean the fan blades.
NOTE: You can use equivalent alternatives for standard tools, equipment and consumable materials.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | MAT - PROTECTIVE |
| No specific | 1 | SPONGE |
| No specific | AR | WARNING NOTICE(S) |
| No specific | AR | WATER - DISTILLED |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP1041) | isopropyl alcohol |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
Subtask 72-21-20-941-052-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 72-21-20-941-055-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) Install the MAT - PROTECTIVE in position at the air intake cowl.
4. Procedure(1) Install the MAT - PROTECTIVE in position at the air intake cowl.
Subtask 72-21-20-110-050-A
A. Removal of Oil and Grease
(1) Clean manually with a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with only isopropyl alcohol (Material No.CP1041) to permit handling and inspection.
(2) If the fan blades are not clean, do as follows:
(a) Use a SPONGE in a nylon stocking, made moist with WATER - DISTILLED to remove residues stuck on the two sides (insects).
(b) Wipe the blade with a blank Textile-Lint free Cotton - (Material No.14SBA1) to make sure that the surface is clean.
5. Close-up(1) Clean manually with a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with only isopropyl alcohol (Material No.CP1041) to permit handling and inspection.
(2) If the fan blades are not clean, do as follows:
(a) Use a SPONGE in a nylon stocking, made moist with WATER - DISTILLED to remove residues stuck on the two sides (insects).
(b) Wipe the blade with a blank Textile-Lint free Cotton - (Material No.14SBA1) to make sure that the surface is clean.
Subtask 72-21-20-942-051-A
A. Put the aircraft back to its initial configuration.
(1) Remove the MAT - PROTECTIVE at the air intake cowl.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).
(1) Remove the MAT - PROTECTIVE at the air intake cowl.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).