(1KS1,1KS2)
AMM 73-25-34-710-043 Operational Test of the Engine Interface Unit
ASM 73-25/08
3. Fault Confirmation
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A. Do the operational test of the Engine Interface Unit (EIU) through the Centralized Fault Display System (CFDS) (Ref. AMM TASK 73-25-34-710-043).
4. Fault Isolation
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A. If the test gives the maintenance message 115VU CRANK/MODE AUTO/IGN SEL SW:
- replace the SEL SW-ENG/MODE/CRANK/AUTO IGN/IGN (6KS).
(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 (1KS1) to the switch (6KS) pins AA/1C, 1A, 1B to pins 2, 3, 4, (Ref. ASM 73-25/08).
B. Do the test given in Para. 3.A.
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TASK 76-12-00-810-810
Failure of the Control of the Fuel Shut-off Valve on Engine 1
1. Possible Causes
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- aircraft wiring
- RELAY-ENG/MASTER 1 (11QG)
- ACTUATOR-LP FUEL VALVE, ENG 1 (9QG)
- VALVE-LP FUEL, ENG 1 (12QM)
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 28-24-00-710-002 Operational Test of the ENG 1(2) LP Fuel Valve 12QM
(13QM)
R AMM 28-24-41-000-001 Removal of the LP Fuel Valve 12QM(13QM)
R AMM 28-24-41-400-001 Installation of the LP Fuel Valve 12QM(13QM) AMM 28-24-51-000-001 Removal of the LP Fuel Valve Actuator AMM 28-24-51-400-001 Installation of the LP Fuel Valve Actuator AMM 71-00-00-710-003 Engine Automatic Start ASM 28-24/01 ASM 76-12/01
3. Fault Confirmation
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A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation
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A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/LP VALVE/MOT1/ENG1 1QG A08 121VU FUEL/LP VALVE/MOT2/ENG1 3QG M25
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- make sure that the LP fuel valve is open (Ref. AMM TASK 28-24-00-710-002).
(1) If the valve is not open:
- do a check of the aircraft wiring between the circuit breakers (1QG), (3QG) and the ENG 1 LP fuel valve actuator (9QG) pins AA/A, BB/A (Ref. ASM 76-12/01) and (Ref. ASM 28-24/01).
(a) If there is no continuity:
- repair the above wiring or/and replace the RELAY-ENG/MASTER 1 (11QG).
(b) If there is continuity:
- replace the ACTUATOR-LP FUEL VALVE, ENG 1 (9QG) (Ref. AMM TASK 28-24-51-000-001) and (Ref. AMM TASK 28-24-51-400-001).
(c) If the fault continues:
- replace the VALVE-LP FUEL, ENG 1 (12QM) (Ref. AMM TASK 28-24-41-000-001) and (Ref. AMM TASK 28-24-41-400-001).
C. Test
(1) Start the engine 1 by the engine automatic start procedure (Ref. AMM TASK 71-00-00-710-003).
(2) Make sure that there is no ECAM and CFDS fault message shown.
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TASK 76-12-00-810-811
Failure of the Control of the Fuel Shut-off Valve on Engine 2
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