DOC AIRBUS | TSM A320FBroad Band Vibration Higher than the Limit on Engine 1
1. Possible Causes
· TRANSDUCER-VIBRATION ( 4004EV1 )
· CABLE ASSY-VIBRATION TRANSDUCER 1 ( 4004EV2 )
· CABLE ASSY-VIBRATION TRANSDUCER 2 ( 4004EV3 )
2 Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
Ref. AMM 77-32-00-200-010 General Check of the Engine Vibration Indicating System
Ref. AMM 77-32-15-000-010 Removal of the Vibration Transducer
Ref. AMM 77-32-15-400-010 Installation of the Vibration Transducer
Ref. AMM 77-32-43-000-010 Removal of the Vibration Harness
Ref. AMM 77-32-43-400-010 Installation of the Vibration Harness
Ref. AMM 79-00-00-200-011 Inspection of the Magnetic Chip Detectors for Debris
3. Fault Confirmation
Subtask 77-30-00-710-101-A
A. Test
Not applicable.
4. Fault Isolation
Subtask 77-30-00-810-082-A
A. If the fault symptom is identified by the CFDS message CHECK ENG1 BB VIB EXCEED and the ECAM
warning ENG EVMU:
· do an inspection of the vibration indication system Ref. AMM 77-32-00-200-010 .
(1) If you find no fault:
· do an inspection of the magnetic chip detectors Ref. AMM 79-00-00-200-011 .
(2) If you find no fault:
· replace the TRANSDUCER-VIBRATION ( 4004EV1 ) Ref. AMM 77-32-15-000-010 and Ref.
AMM 77-32-15-400-010 .
(3) If the fault continues:
· replace the CABLE ASSY-VIBRATION TRANSDUCER 1 ( 4004EV2 ) and the CABLE
ASSY-VIBRATION TRANSDUCER 2 ( 4004EV3 ) Ref. AMM 77-32-43-000-010 and Ref.
AMM 77-32-43-400-010 . [Rev.6 from Feb 2017] 2026.04.04 04:37:53 UTC