TASK 73-25-00-810-864
Failure of the N2 Higher than the Minimum TO Discrete Output on the EIU 2
1. Possible Causes
_______________
- CONTROLLER-PACK 2 TEMP (27HH)
- EIU-2 (1KS2)
- CONT-AIR COND SYSTEM 2 (57HH)
- wiring from the EIU-2 (1KS2) to the pack 2 temperature controller (27HH)
- wiring from the EIU-2 (1KS2) to the pack 2 temperature controller (57HH)
2. Job Set-up Information
______________________
A. Referenced Information
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REFERENCE DESIGNATION
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AMM 21-61-34-000-001 Removal of the Pack Controller (7HH, 27HH)
AMM 21-61-34-000-002 Removal of the Air-Conditioning System Controller
(47HH, 57HH)
AMM 21-61-34-400-001 Installation of the Pack Controller (7HH, 27HH)
AMM 21-61-34-400-002 Installation of the Air-Conditioning System
Controller (47HH, 57HH)
AMM 73-25-34-000-040 Removal of the Engine Interface Unit (EIU)
(1KS1,1KS2)
AMM 73-25-34-400-040 Installation of the Engine Interface Unit (EIU)
(1KS1,1KS2)
AMM 73-25-34-710-043 Operational Test of the Engine Interface Unit
ASM 73-25/09
3. Fault Confirmation
__________________
A. Do the operational test of the engine interface unit through the CFDS (Ref. AMM TASK 73-25-34-710-043).
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
A. If the test gives the maintenance message CHECK PACK CONT 7HH EIU 2 CIRCUIT:
- replace the CONTROLLER-PACK 2 TEMP (27HH) (Ref. AMM TASK 21-61-34-000-001) and (Ref. AMM TASK 21-61-34-400-001).
(1) If the fault continues:
- replace the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
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(2) If the fault continues:
- do a check and repair the wiring from the EIU-2 (1KS2) to the pack2 temperature controller (27HH) pin AB/1G to pin AA/10B (Ref. ASM 73-25/09).
R **ON A/C 106-149, 303-399, 401-499,
A. If the test gives the maintenance message CHECK PACK CONT 7HH EIU 2 CIRCUIT:
NOTE : CONT-PACK (7HH) has been replaced by AIR COND SYS 2 (57HH) due to
____
a modification of the Air Conditioning System.
- replace the CONT-AIR COND SYSTEM 2 (57HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).
(1) If the fault continues:
- replace the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
(2) If the fault continues:
- do a check and repair the wiring from the EIU-2 (1KS2) to the pack2 temperature controller (57HH) pin AB/1G to pin AB/3C (Ref. ASM 73-25/09).
**ON A/C ALL
B. Do the test given in Para. 3.A.
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TASK 73-25-00-810-865
Failure of the Pack Valve Output for Engine 1
1. Possible Causes
_______________
- EIU-1 (1KS1)
- RELAY-ENGINE START (17HB)
- wiring from the EIU-1 (1KS1) to the engine start relay (17HB)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 73-25-34-000-040 Removal of the Engine Interface Unit (EIU)
(1KS1,1KS2)
AMM 73-25-34-400-040 Installation of the Engine Interface Unit (EIU)
(1KS1,1KS2)
AMM 73-25-34-710-043 Operational Test of the Engine Interface Unit
ASM 73-25/09
3. Fault Confirmation
__________________
A. Do the operational test of the engine interface unit through the CFDS (Ref. AMM TASK 73-25-34-710-043).
4. Fault Isolation
_______________
A. If the test gives the maintenance message CHECK 17HB RELAY CIRCUIT OR EIU
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本文链接地址：A320 Trouble Shooting Manual 排故手册 发动机燃油和控制 2(45)
