CHECK OF THE ENG FADEC MAINTENANCE MESSAGES DISPLAYED ON ECAM STATUS PAGE [CFMB]

TASK 73-29-00-040-001-A
CHECK OF THE ENG FADEC MAINTENANCE MESSAGES DISPLAYED ON ECAM STATUS PAGE

1. Reason for the Job
MMEL 70-00-01C
ENG FADEC MAINTENANCE MESSAGE
This taks is only applicable for CFM 56-5B /3 engines.
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 73-29-00-710-040-B	Operational Test of the FADEC on the Ground (with Engine Motoring)

3. Job Set-up
Subtask 73-29-00-869-057-A ** ON A/C NOT FOR ALL

A. Not applicable

Subtask 73-29-00-861-058-A ** ON A/C NOT FOR ALL

B. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

4. Procedure
Subtask 73-29-00-040-050-A ** ON A/C NOT FOR ALL

A. Do an operational test of the FADEC 1 Channels A/B and FADEC 2 Channels A/B with printing of each TEST RESUSLT page (Ref. AMM TASK 73-29-00-710-040).
(1) Make sure that the TEST RESULT PAGE do not show these maintenance messages:

ATA	MESSAGE	CLASS FAULT
73-21-40	T12 SNSR, J10, ECU	1
73-21-40	T12 SNSR, J9, ECU	1
73-21-40	T12 SNSR, J10, ECU ENG1B	2
73-21-40	T12 SNSR, J9, ECU ENG1A	2
73-21-40	T12 SNSR, J10, ECU ENG2B	2
73-21-40	T12 SNSR, J9, ECU ENG2A	2

5. Close-up
Subtask 73-29-00-862-058-A ** ON A/C NOT FOR ALL

A. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 73-29-00-869-058-A ** ON A/C NOT FOR ALL

B. Make an entry in the log book to record the operational test of the FADEC.

[Rev.10 from 2021] 2026.04.01 02:59:45 UTC