Operational Check of EVMU through CFDS [IAE]

TASK 77-32-34-710-041-A
Operational Check of EVMU through CFDS

1. Reason for the Job
Self explanatory
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
EVMU Menu
EVMU Test

3. Job Set-up
Subtask 77-32-34-861-057-A ** ON A/C NOT FOR ALL

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

Subtask 77-32-34-865-059-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1 AND 2/EVMU	1EV	R44

Subtask 77-32-34-869-071-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) On the 1(2) MCDU, get the SYSTEM REPORT/TEST ENG page (Ref. AMM TASK 31-32-00-860-012)
(2) Push the line key adjacent to the EVMU indication: the first EVMU page comes into view.

EVMU Menu ** ON A/C NOT FOR ALL

4. Procedure
Subtask 77-32-34-710-052-A ** ON A/C NOT FOR ALL

A. Test of the EVMU with the CFDS

ACTION	RESULT
1.Push the line key adjacent to the TEST indication to get the TEST program.	The TEST IN PROGRESS indication comes into view. EVMU Test ON A/C NOT FOR ALL detail A. After not many seconds: the SELF-TEST OK indication comes into view. EVMU Test ON A/C NOT FOR ALL detail B.
2.On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.	The CFDS menu comes into view.
3.Press the MCDU menu Key.	The MCDU menu comes into view. NOTE: When a fault is found, the reference of the ATA chapter and the faulty element come into view. EVMU Test ** ON A/C NOT FOR ALL detail C.

5. Close-up
Subtask 77-32-34-862-057-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 04:13:40 UTC