- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
(2) If there is no 115VAC:
- do a check for 115VAC at the EIU-2 (1KS2) pin AC/1.
(a) If there is 115VAC:
- replace the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
1 If the fault continues:
_
- replace the J2 harness between the EIU-2 (1KS2) and the ECU (4000KS).
(b) If there is no 115VAC:
- do a check of the wiring between the EIU-2 (1KS2) pin AC/1 and the circuit breaker (3JH2).
1 If there is no continuity:
_ - repair the above wiring.
2 If there is continuity:
_
- replace the C/B-ENGINE/ING/ENG2/SYS B (3JH2).
(3) If the fault continues:
- make sure that there is no ground signal at the EIU-2 (1KS2) pin AA/5B.
B. If the circuit breaker (3JH2) is open:
- close it.
(1) If the circuit breaker trips:
- remove the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and
- remove the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040).
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- do a check and repair the wiring for short to ground between the EIU-2 (1KS2) pin AC/1 and the circuit breaker (3JH2).
(a) If the fault continues:
- replace the C/B-ENGINE/ING/ENG2/SYS B (3JH2).
(3) If the circuit breaker stays closed:
- install the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-400-040).
(a) If the circuit breaker trips:
- replace the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
(b) If the circuit breaker stays closed:
- install the ECU (4000KS) (Ref. AMM TASK 73-21-60-400-001).
1 If the circuit breaker trips:
_
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
2 If the circuit breaker trips again:
_
- do a check and repair the wiring between the ECU (4000KS) pins J2/7, 8 and the EIU-2 (1KS2) pin AC/4.
(4) If the fault continues:
- make sure that there is no ground signal at the EIU-2 (1KS2) pin AA/5B.
C. Do the test given in Para. 3.
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TASK 71-50-00-810-828
Loss of the ADIRU1 Signal to the ECU on Engine 1
1. Possible Causes
_______________
- harness J3
- ADIRU-1 (1FP1)
- ECU (4000KS)
- aircraft wiring between the ADIRU1 (1FP1) and the connector 402VC1 on the pylon junction box
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 34-12-34-000-001 Removal of the ADIRU (1FP1, 1FP2, 1FP3) AMM 34-12-34-400-001 Installation of the ADIRU (1FP1, 1FP2, 1FP3) R AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU)(4000KS) AMM 73-21-60-400-001 Installation of the Electronic Control Unit R (ECU)(4000KS) AMM 73-29-00-710-040 Operational Test of the FADEC on the Ground (with
Engine non Motoring)
ASM 73-25/10
AWM 71-51-04
AWM 73-25-25
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 1B on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
4. Fault Isolation
_______________
A. If the test gives the maintenance message J3, ADC1 or J3, ADC1*:
- do a check for open or short to ground of the harness J3 between the ECU (4000KS) and the connector 402VC1 on the pylon junction box, pins J3/9, 2 to pins 402VC1/28, 14 (Ref. AWM 71-51-04).
(1) If the fault continues:
- replace the harness J3.
(2) If the fault continues:
- replace the ADIRU-1 (1FP1) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 动力装置 POWER PLANT(27)
