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Failure of the No. 1 Bearing Vibration Sensor on Engine 1
1. Possible Causes
_______________
- EVMU (2EV)
- wiring from the EVMU (2EV) to the vibration sensor (4002EV)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 77-32-34-000-042 Removal of the Engine Vibration Monitoring Unit (EVMU) AMM 77-32-34-400-042 Installation of the Engine Vibration Monitoring Unit (EVMU)
R AMM 77-32-34-710-040 Operational Check of EVMU through CFDS AMM 77-32-34-860-041 Change the configuration of the Accelerometer ASM 77-32/02
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the Engine Vibration Monitoring Unit (EVMU) through the Centralized Fault Display System (CFDS) (Ref. AMM TASK 77-32-34-710-040).
4. Fault Isolation
_______________
A. If the test gives the maintenance message ENG1 BRG1 ACCEL:
- do a check of the wiring from the EVMU (2EV) to the vibration sensor (4002EV) pins AA/1A, 2B to pins AA/2, 3 (Ref. ASM 77-32/02).
(1) If there is no continuity:
- repair the above wiring.
(2) If there is continuity:
- reconfigure the accelerometer to get the data from the TRF vibration sensor (Ref. AMM TASK 77-32-34-860-041).
NOTE : The N1 bearing vibration sensor is not a LRU, replace it at
____
the first shop visit.
(3) If the fault continues:
- replace the EVMU (2EV), (Ref. AMM TASK 77-32-34-000-042) and (Ref. AMM TASK 77-32-34-400-042).
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B. Do the test given in Para. 3.A.
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TASK 77-30-00-810-810
Failure of the No. 1 Bearing Vibration Sensor on Engine 2
1. Possible Causes
_______________
- EVMU (2EV)
- wiring from the EVMU (2EV) to the vibration sensor (4002EV)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 77-32-34-000-042 Removal of the Engine Vibration Monitoring Unit (EVMU) AMM 77-32-34-400-042 Installation of the Engine Vibration Monitoring Unit (EVMU)
R AMM 77-32-34-710-040 Operational Check of EVMU through CFDS AMM 77-32-34-860-041 Change the configuration of the Accelerometer ASM 77-32/02
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the Engine Vibration Monitoring Unit (EVMU) through the Centralized Fault Display System (CFDS) (Ref. AMM TASK 77-32-34-710-040).
4. Fault Isolation
_______________
A. If the test gives the maintenance message ENG2 BRG1 ACCEL:
- do a check of the wiring from the EVMU (2EV) to the vibration sensor (4002EV) pins AA/1A, 2B to pins AA/2, 3 (Ref. ASM 77-32/02).
(1) If there is no continuity:
- repair the above wiring.
(2) If there is continuity:
- reconfigure the accelerometer to get the data from the TRF vibration sensor (Ref. AMM TASK 77-32-34-860-041).
NOTE : The No. 1 bearing vibration sensor is not a LRU, replace it at
____
the first shop visit.
(3) If the fault continues:
- replace the EVMU (2EV), (Ref. AMM TASK 77-32-34-000-042) and (Ref. AMM TASK 77-32-34-400-042).
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B. Do the test given in Para. 3.A.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 发动机指示(189)
