- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
(2) If the igniters does not operate:
- do a check for open or short to ground of the J1 wiring between the ECU (4000KS) and the lower exciter box and J2 wiring between the ECU (4000KS) and the upper exciter box.
(a) If the wirings are not correct:
- repair the defective above wirings.
(3) If the wirings are correct:
- replace the defective left or right igniter (Ref. AMM TASK 74-21-30-000-002) and (Ref. AMM TASK 74-21-30-400-002).
(4) If the fault continues:
- replace the defective left or right ignition lead (Ref. AMM TASK 74-21-20-000-002), (Ref. AMM TASK 74-21-20-400-002) or (Ref. AMM TASK 74-21-10-000-002), (Ref. AMM TASK 74-21-10-400-002).
(5) If the fault continues:
- replace the defective lower or upper exciter box (Ref. AMM TASK 74-11-10-000-002) and (Ref. AMM TASK 74-11-10-400-002).
(6) If the fault continues:
- Make sure that there is no ground signal at the EIU-2 (1KS2) pin AA/5B (Ref. ASM 74-31/01).
(7) 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).
(8) 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).
B. Do the test given in Para. 3.A.
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E TASK 74-00-00-810-817 No Light Off with Correct Fuel Flow on Engine 1 or 2
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1. Possible Causes
_______________
- fuel nozzles
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 71-00-00-710-006 Minimum Idle Check AMM 73-11-40-000-002 Removal of the Fuel Nozzle AMM 73-11-40-400-002 Installation of the Fuel Nozzle AMM 74-00-00-710-043 Operational Test of the Ignition System
3. Fault Confirmation
__________________
A. Test
Not applicable, the fault is evident.
4. Fault Isolation
_______________
A. If the fault symptom is identified by the crew observation: No light off with correct fuel flow:
(1) Do an operational test of the ignition system (Ref. AMM TASK 74-00-00-710-043).
(2) Replace the fuel nozzles in the igniters area (Ref. AMM TASK 73-11-40-000-002) (Ref. AMM TASK 73-11-40-400-002).
B. Do a minimum idle check (Ref. AMM TASK 71-00-00-710-006).
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TASK 74-00-00-810-820
Uncommanded Continuous Ignition on Engine 1 After Engine Start
1. Possible Causes
_______________
- P/BSW-ANTI ICE/ENG 1 (2DN1)
- wiring from the ANTI ICE/ENG 1 pushbutton switch (2DN1) to the EIU-1 (1KS1)
- wiring from the ENG/MODE/CRANK/AUTO IGN/IGN selector switch (6KS) to the EIU-1 (1KS1)
- EIU-1 (1KS1)
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)
ASM 73-25/08
3. Fault Confirmation
__________________
A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation
_______________
A. If the fault symptom is identified by the crew observation ENG 1 -Uncommanded continuous IGNITION after engine start:
- check if the ground is applied at the pin AA/B2 of the ANTI ICE/ENG1 pushbutton switch (2DN1) when the switch is OFF. If not replace the P/BSW-ANTI ICE/ENG 1 (2DN1)
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本文链接地址：A320 Trouble Shooting Manual 排故手册 点火 IGNITION(8)
