Vibration Indications Fault

TASK 77-00-00-810-867-A
Vibration Indications Fault

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 773202
AMM 77-32-34-000-040	Removal of the Monitoring Unit Engine Vibration (EVMU)
AMM 77-32-34-000-042	Removal of the Engine Vibration Monitoring Unit (EVMU)
AMM 77-32-34-400-040	Installation of the Vibration Monitoring Unit (EVMU)
AMM 77-32-34-400-042	Installation of the Engine Vibration Monitoring Unit (EVMU)
AMM 77-32-34-710-040	Operational Check of EVMU through CFDS for Advisory Indication on ECAM

3. Fault Confirmation
Subtask 77-00-00-710-173-A ** ON A/C NOT FOR ALL

A. Do the operational test of the Engine Vibration Monitoring Unit (EVMU) through the Centralized Fault Display System (CFDS) AMM 77-32-34-710-040.

4. Fault Isolation
Subtask 77-00-00-865-056-A ** ON A/C NOT FOR ALL

A. Table of the circuit breakers used in this procedure:

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

Subtask 77-00-00-810-136-A ** ON A/C NOT FOR ALL

B. If the fault symptom is identified by ENG VIB SYS FAULT message on the upper ECAM warning display unit:

(1) If the circuit breaker is open:

(2) If the circuit breaker is closed:

(a) If there is 115VAC:

(b) If there is no 115VAC:

do a check and repair the aircraft wiring between the breaker 1EV to the EVMU (2EV) ASM 773202.

1 If the fault continues:

Subtask 77-00-00-810-136-B ** ON A/C NOT FOR ALL

B. If the fault symptom is identified by ENG VIB SYS FAULT message on the upper ECAM warning display unit:

(1) If the circuit breaker is open:

(2) If the circuit breaker is closed:

(a) If there is 115VAC:

(b) If there is no 115VAC:

do a check and repair the aircraft wiring between the breaker 1EV to the EVMU (2EV) ASM 773202.

1 If the fault continues:

Subtask 77-00-00-710-174-A ** ON A/C NOT FOR ALL

C. Do the check given in Para. 3.A.

[Rev.8 from Aug 2018] 2026.04.04 04:37:34 UTC