W DOC AIRBUS | TSM A320F

Failure of the Control of the Fuel Shut-off Valve on Engine 2

TASK 76-12-00-810-813-A
Failure of the Control of the Fuel Shut-off Valve on Engine 2

1. Possible Causes
  • aircraft wiring
  • RELAY-ENG/MASTER 2 [12QG]
  • ACTUATOR-LP FUEL VALVE, ENG 2 [10QG]
  • VALVE-LP FUEL, ENG 2 [13QM]
  • CTL SW-ENG/MASTER 2 [2KC]
  • fuel pump and filter assembly
  • HMU
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
ESPM 2045210
AMM 28-24-00-710-002
Operational Test of the ENG 1(2) LP Fuel Valve
ASM 282401
AMM 28-24-41-000-001
Removal of the LP Fuel Valve
AMM 28-24-41-400-001
Installation of the LP Fuel Valve
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 31-10-00-700-001
Test Program after Removal/Installation of a VU panel
AMM 71-00-00-710-003
Engine Automatic Start
AMM 73-11-10-000-001
Removal of the Fuel Pump and Filter Assembly
AMM 73-11-10-000-003
Removal of the Fuel Pump and Filter Assembly
AMM 73-11-10-400-001
Installation of the Fuel Pump and Filter Assembly
AMM 73-11-10-400-003
Installation of the Fuel Pump and Filter Assembly
AMM 73-21-10-000-001
Removal of the Hydromechanical Unit (HMU)
AMM 73-21-10-000-002
Removal of the Hydromechanical Unit (HMU)
AMM 73-21-10-400-001
Installation of the Hydromechanical Unit (HMU)
AMM 73-21-10-400-002
Installation of the Hydromechanical Unit (HMU)
ASM 761201
3. Fault Confirmation
Subtask 76-12-00-710-072-A ** ON A/C NOT FOR ALL
A. Test
   (1) Not applicable, the fault is evident.
4. Fault Isolation
Subtask 76-12-00-865-053-A ** ON A/C NOT FOR ALL
A. Table of the circuit breakers used in this procedure:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
Subtask 76-12-00-810-061-A ** ON A/C NOT FOR ALL
B. If the fault symptom is identified by the CFDS message ENG MSTR, HMU:
   (1) If the valve is not open:
  • do a check of the aircraft wiring between the circuit breakers (2QG), (4QG) and the ENG 2 LP fuel valve actuator (10QG) pins AA/A, BB/A ASM 761201 and ASM 282401.
     (a) If there is no continuity:
  • repair the above wiring or/and replace the RELAY-ENG/MASTER 2 [12QG] .
     (b) If there is continuity:
     (c) If the fault continues:
     (d) If the fault continues:
  • replace the CTL SW-ENG/MASTER 2 [2KC] on the panel 115VU ESPM 2045210.
  • install the panel 115VU and do a test program after removal/installation of a VU panel AMM 31-10-00-700-001.
   (2) If the valve is open:
   (3) If the fault continues, replace the HMU AMM 73-21-10-000-001 and AMM 73-21-10-400-001.
Subtask 76-12-00-810-061-B ** ON A/C NOT FOR ALL
B. If the fault symptom is identified by the CFDS message MASTER LEVER, HMU:
   (1) If the valve is not open:
  • do a check of the aircraft wiring between the circuit breakers (2QG), (4QG) and the ENG 2 LP fuel valve actuator (10QG) pins AA/A, BB/A ASM 761201 and ASM 282401.
     (a) If there is no continuity:
  • repair the above wiring or/and replace the RELAY-ENG/MASTER 2 [12QG] .
     (b) If there is continuity:
     (c) If the fault continues:
     (d) If the fault continues:
  • replace the CTL SW-ENG/MASTER 2 [2KC] on the panel 115VU ESPM 2045210.
  • install the panel 115VU and do a test program after removal/installation of a VU panel AMM 31-10-00-700-001.
   (2) If the valve is open:
   (3) If the fault continues, replace the HMU AMM 73-21-10-000-002 and AMM 73-21-10-400-002.
Subtask 76-12-00-710-073-A ** ON A/C NOT FOR ALL
C. Test
   (1) Start the engine 2 by the engine automatic start procedure AMM 71-00-00-710-003.
   (2) Make sure that there is no ECAM and CFDS fault message shown.
[Rev.8 from Aug 2018] 2026.04.04 04:37:27 UTC
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