3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 1A 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 J4, ADC2 or J4, ADC2*:
- do a check for open or short to ground of the harness J4 between the ECU (4000KS) and the connector 403VC1 on the pylon junction box, pins J4/9, 2 to pins 403VC1/28, 14 (Ref. AWM 71-51-04).
(1) If the fault continues:
- replace the harness J4.
(2) If the fault continues:
- replace the ADIRU-2 (1FP2) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
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E F 『 E C F M E E E E 56 E E E (3) If the fault continues:
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
(4) If the fault continues:
- do a check and repair the aircraft wiring between the ADIRU2 (1FP2) and the connector 403VC1 on the pylon junction box, pins AA/12B, 12D to pins 403VC1/14, 28 (Ref. AWM 73-25-33) and (Ref. ASM 73-25/10).
B. Do the test given in Para. 3.
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TASK 71-50-00-810-816
Loss of the ADIRU 2 Signal to the ECU on Engine 2
1. Possible Causes
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- harness J4
- ADIRU-2 (1FP2)
- ECU (4000KS)
- aircraft wiring between the ADIRU2 (1FP2) and the connector 403VC2 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 73-25-34
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 2A 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 J4, ADC2 or J4, ADC2*:
- do a check for open or short to ground of the harness J4 between the ECU (4000KS) and the connector 403VC2 on the pylon junction box, pins J4/9, 2 to pins 403VC2/28, 14 (Ref. AWM 71-51-04).
(1) If the fault continues:
- replace the harness J4.
(2) If the fault continues:
- replace the ADIRU-2 (1FP2) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
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E E Aug 01/99 E E ECES
E F 『 E C F M E E E E 56 E E E (3) If the fault continues:
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
(4) If the fault continues:
- do a check and repair the aircraft wiring between the ADIRU2 (1FP2) and the connector 403VC2 on the pylon junction box: pins AA/14B, 14D to pins 403VC2/14, 28 (Ref. AWM 73-25-34) and (Ref. ASM 73-25/10).
B. Do the test given in Para. 3.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 动力装置 POWER PLANT(21)
