DOC AIRBUS | AMM A320FCheck ECU Air Cooling Inlet/Outlet for Blockage [CFMB]
TASK 75-24-49-210-041-B
Check ECU Air Cooling Inlet/Outlet for Blockage
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 75-24-49-941-052-A ** ON A/C NOT FOR ALL
Subtask 75-24-49-210-051-A ** ON A/C NOT FOR ALL
Subtask 75-24-49-869-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:10:17 UTC
Check ECU Air Cooling Inlet/Outlet for Blockage
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 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 75-24-49-000-040-A | Removal of the ECU Air Cooling Tube |
| TASK 75-24-49-400-040-A | Installation of the ECU Air Cooling Tube |
ECU Air Cooling TubeSubtask 75-24-49-941-052-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).
4. Procedure(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 75-24-49-210-051-A ** ON A/C NOT FOR ALL
A. Visual inspection of the ECU air Cooling Inlet Duct.
(1) Examine the ECU air cooling inlet duct for blockage. Remove unwanted material from the duct.
(2) A total blockage may require removal of the ECU air cooling tube to clear the blockage (Ref. AMM TASK 75-24-49-000-040) and (Ref. AMM TASK 75-24-49-400-040).
5. Close-up(1) Examine the ECU air cooling inlet duct for blockage. Remove unwanted material from the duct.
(2) A total blockage may require removal of the ECU air cooling tube to clear the blockage (Ref. AMM TASK 75-24-49-000-040) and (Ref. AMM TASK 75-24-49-400-040).
Subtask 75-24-49-869-050-A ** ON A/C NOT FOR ALL
A. Make sure that the work area is clean and clear of tools and other items.
Subtask 75-24-49-942-050-A ** ON A/C NOT FOR ALL B. Remove the WARNING NOTICE(S).