4 Do the test given in Para. 3.A.
_

 5 Check/replace the RELAY-ENG/MASTER 2 (12QG).
_

 6 Do the test given in Para. 3.A.
_

 7 If the fault continues:
_

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 1/open supply) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-A, pin A and the RELAY-ENG/MASTER 2 (12QG), terminal A3

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 1/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-A, pin E and the ground/earth point 4002VN(621STA332)

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 2/open supply) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-B, pin A and the RELAY-ENG/MASTER 2 (12QG), terminal B3

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 2/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-B, pin E and the ground/earth point 4004VN(622STA450)

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 1/open supply) between the RELAY-ENG/MASTER 2 (12QG), terminal A2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-D, pin G

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 2/open supply) between the RELAY-ENG/MASTER 2 (12QG), terminal B2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-C, pin A

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 1/open supply) between the ENG/APU FIRE PANEL (1WD) free connector 1WD-D, pin H and the C/B-FUEL/LP VALVE/MOT 1/ENG 2 (2QG), terminal 2

 - do a check (Ref. AWM 28-24-02) of the aircraft wiring (motor 2/open supply) between the ENG/APU FIRE PANEL (1WD) free

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-24-00∞∞∞∞∞∞∞∞∞∞Page 221
 Feb 01/98 CES

 connector 1WD-C, pin B and the C/B-FUEL/LP VALVE/MOT 2/ENG 2 (4QG), terminal 2.
 8 Repair all the unserviceable wiring and connectors.
_
 9 Do the test given in Para. 3.A.

_

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-24-00∞∞∞∞∞∞∞∞∞∞Page 222
 Feb 01/98 CES

 TASK 28-24-00-810-806
 Fuel LP Fuel Valve Engine 2 Does Not Close
 WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
 WARNING : WHEN YOU WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST EQUIPMENT
_______ THAT IS APPROVED TO EUROPEAN SPECIFICATION EN50-020. THE USE OF TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
 1. Possible Causes
_______________
 - ACTUATOR-LP FUEL VALVE, ENG 2 (10QG)

 - VALVE-LP FUEL, ENG 2 (13QM)

 - ENG/APU FIRE PNL (1WD)

 - CONTROL SWITCH-ENG/MASTER 2 (2KC), (part of ENG PNL 115VU)

 - RELAY-ENG/MASTER 2 (12QG)

 - aircraft wiring(motor 1/close supply) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-A, pin C and the RELAY-ENG/MASTER 2 (12QG), terminal A1

 - aircraft wiring (motor 1/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-A, pin E and the ground/earth point 4002VN(621STA332)

 - aircraft wiring(motor 2/close supply) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-B, pin C and the RELAY-ENG/MASTER 2 (12QG), terminal B1

 - aircraft wiring (motor 2/ground/earth) between the ACTUATOR-LP FUEL VALVE, ENG 2 free connector 10QG-B, pin E and the ground/earth point 4004VN(622STA450)

 - aircraft wiring (motor 1/close supply) between the RELAY-ENG/MASTER 2 (12QG), terminal A2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-D, pin <G

 - aircraft wiring (motor 2/close supply) between the RELAY-ENG/MASTER 2 (12QG), terminal B2 and the ENG/APU FIRE PANEL (1WD) free connector 1WD-C, pin <A

 - aircraft wiring(motor 1/close supply) between the ENG/APU FIRE PANEL (1WD) free connector 1WD-D, pin <H and the C/B-FUEL/LP VALVE/MOT 1/ENG 2 (2QG), terminal 2

 - aircraft wiring(motor 2/close supply) between the ENG/APU FIRE PANEL (1WD) free connector 1WD-C, pin <B and the C/B-FUEL/LP VALVE/MOT 2/ENG 2 (4QG), terminal 2

 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific multimeter
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-24-00∞∞∞∞∞∞∞∞∞∞Page 223
　
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