Check ECU Air Cooling Pipe Inlet/Outlet for Blockage [CFMI]

TASK 75-24-49-210-041-A
Check ECU Air Cooling Pipe Inlet/Outlet for Blockage

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

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)

B. Referenced Information

REFERENCE	DESIGNATION
ECU Air Cooling Tubes

3. Job Set-up
Subtask 75-24-49-941-058-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).

4. Procedure
Subtask 75-24-49-210-056-B ** ON A/C NOT FOR ALL

A. Do a visual inspection of the openings on the ECU cooling inlet.
(1) Check that the opening of the ECU inlet duct is not blocked.

5. Close-up
Subtask 75-24-49-869-051-A ** ON A/C NOT FOR ALL

A. Make sure that the work area is clean and clear of tools and other items.

Subtask 75-24-49-942-051-A ** ON A/C NOT FOR ALL

B. Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:36:54 UTC