Read Engine Scheduled Maintenance Report (SMR) for unlimited (asterisked) Faults [CFMI]

TASK 73-21-60-740-029-A
Read Engine Scheduled Maintenance Report (SMR) for unlimited (asterisked) Faults

1. Reason for the Job
Refer to the MPD TASK: 730000-C3
READ ENGINE SCHEDULED MAINTENANCE REPORT (SMR) FOR UNLIMITED (ASTERISKED) FAULTS.
This task is only applicable for CFM56-5A FADEC STD 5.A.D TO 5.A.H+.
To get access to the list of class 3 and single channel ALPHA and BETA faults detected, with unlimited dispatch class 3 faults identified by an asterisk (*).
You can get access to Class 3 and single channel ALPHA and BETA faults detected during normal mode operation and stored in NVM through the SCHEDULED MAINTENANCE report from the ENGINE 1(2) MAIN MENU. Data for the last 12 faults isolated during the last 64 flight legs is shown on the MCDU in reverse chronological order (the last ones first).

NOTE: Class 3 and single channel ALPHA and BETA faults detected during menu mode tests are shown on the TEST REPORT screen of the test you did.

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 31-32-00-860-012-A	Procedure to Get Access to the SYSTEM REPORT/TEST/ENG Page
Scheduled Maintenance Report

3. Job Set-up
Subtask 73-21-60-861-069-D ** ON A/C NOT FOR ALL

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

Subtask 73-21-60-869-071-D ** ON A/C NOT FOR ALL

B. Preparation for test
(1) On the overhead maintenance panel 50VU, push then release the ENG/FADEC GND PWR/1(2). The ON legend comes on.
(2) On the left or right MCDU get the SYSTEM REPORT/TEST ENG page (Ref. AMM TASK 31-32-00-860-012).

4. Procedure
Subtask 73-21-60-740-068-D ** ON A/C NOT FOR ALL

A. Do this procedure for the ECU 1(2) channel A.

NOTE: This test is for the system 1. For the other system(s), use the indications between the parentheses.

ACTION	RESULT
1.On the MCDU:
Push the line key adjacent to the FADEC 1A (2A) indication.	The ENGINE 1(2) MAIN MENU page comes into view.
2.Push the line key adjacent to the SCHEDULED MAINT REPORT indication.	The SCEDULED MAINT REPORT ENGINE 1(2) CHANNEL A menu comes into view. If no faults are present, NO FAULTS RECORDED indication comes into view. If faults are present, they will be displayed. If a ">" symbol appears at the top right hand corner of the MCDU screen, use the PAGE DOWN key to get more pages of fault data. To investigate the fault messages, refer to the Trouble Shooting Manual. If there is a NVM failure, the NVM FAULT: DATA NOT RETRIEVABLE indication comes into view.

(1) Do this procedure for the ECU 1(2) channel B.
(2) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
(3) Stop the MCDU.

5. Close-up
Subtask 73-21-60-860-074-D ** ON A/C NOT FOR ALL

A. On the overhead maintenance panel 50VU:

Push the ENG/FADEC GND PWR 1(2) pushbutton switch. The ON legend goes off.

Subtask 73-21-60-862-068-D ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 02:56:51 UTC