W DOC AIRBUS | AMM A320F

Operational Test of the ENG 1(2) LP Fuel Valve

TASK 28-24-00-710-002-A
Operational Test of the ENG 1(2) LP Fuel Valve

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
FIN: 12QM
FIN: 13QM
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
SAFETY BARRIER(S)
No specific
1
WARNING NOTICE(S)
 B. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 28-00-00-910-001-A
Fuel Safety Procedures
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
F Component Location - Cockpit ** ON A/C NOT FOR ALL
F Component Location - Cockpit ** ON A/C NOT FOR ALL
F Component Location - Cockpit ** ON A/C NOT FOR ALL
F Component Location - Cockpit ** ON A/C NOT FOR ALL
F Component Location - Cockpit ** ON A/C NOT FOR ALL
F Component Location - Cockpit ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 28-24-00-941-056-A
A. Safety Precautions
WARNING: OBEY THE FUEL SAFETY PROCEDURES.
   (1) You must obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
   (2) Put the SAFETY BARRIER(S) in position.
   (3) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the APU or bleed air.
Subtask 28-24-00-860-054-A
B. Aircraft Maintenance Configuration
   (1) Make sure that the APU does not operate and there is no bleed air.
   (2) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
   (3) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001).
Subtask 28-24-00-865-063-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUFUEL/LP VALVE/MOT1/ENG22QGA09
49VUFUEL/LP VALVE/MOT1/ENG11QGA08
121VUFUEL/LP VALVE/MOT2/ENG24QGM26
121VUFUEL/LP VALVE/MOT2/ENG13QGM25
4. Procedure
Subtask 28-24-00-710-053-A
A. Test of the Valve 12QM
ACTION
RESULT
1.On the panel 121VU:

  • open, safety and tag the circuit breaker 3QG.
The ENG 1 LP valve MOTOR 2 SUPPLY and CONTROL are isolated.
2.On the ECAM CP:
On the ECAM lower DU:
  • push (in) the FUEL pushbutton switch (P/BSW).
  • the FUEL system page shows
  • the LEFT LP valve indication shows the valve closed (amber cross-line).
3.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 1 switch to the ON position.
  • the LEFT LP valve indication shows the valve open (green in-line)
  • the LEFT LP valve must not operate for more than 5 seconds.
4.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 1 switch to the OFF position.
  • the LEFT LP valve indication shows the valve closed (amber cross-line)
  • the LEFT LP valve must not operate for more than 5 seconds.
5.On the panel 121VU:

  • remove the safety clip and the tag and close the circuit breaker 3QG.
The ENG 1 LP valve MOTOR 2 SUPPLY and CONTROL are energized.
6.On the panel 49VU:

  • open, safety and tag the circuit breaker 1QG.
The ENG 1 LP valve MOTOR 1 SUPPLY and CONTROL are isolated.


On the ECAM lower DU:

  • the LEFT LP valve indication shows the valve closed (amber cross-line).
7.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 1 switch to the ON position.
  • the LEFT LP valve indication shows the valve open (green in-line)
  • the LEFT LP valve must not operate for more than 5 seconds.
8.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 1 switch to the OFF position.
  • the LEFT LP valve indication shows the valve closed (amber cross-line)
  • the LEFT LP valve must not operate for more than 5 seconds.
9.On the panel 49VU:

  • remove the safety clip and the tag and close the circuit breaker 1QG.
The ENG 1 LP valve MOTOR 1 SUPPLY and CONTROL are energized.
Subtask 28-24-00-710-054-A
B. Test of the Valve 13QM
ACTION
RESULT
1.On the panel 121VU:

  • open, safety and tag the circuit breaker 4QG.
The ENG 2 LP valve MOTOR 2 SUPPLY and CONTROL are isolated.
2.On the ECAM CP:
On the ECAM lower DU:
  • push (in) the FUEL P/BSW.
  • the FUEL system page shows
  • the RIGHT LP valve indication shows the valve closed (amber cross-line).
3.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 2 switch to the ON position.
  • the RIGHT LP valve indication shows the valve open (green in-line)
  • the RIGHT LP valve must not operate for more than 5 seconds.
4.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 2 switch to the OFF position.
  • the RIGHT LP valve indication shows the valve closed (amber cross-line)
  • the RIGHT LP valve must not operate for more than 5 seconds.
5.On the panel 121VU:

  • remove the safety clip and the tag and close the circuit breaker 4QG.
The ENG 2 LP valve MOTOR 2 SUPPLY and CONTROL are energized.
6.On the panel 49VU:

  • open, safety and tag the circuit breaker 2QG.
The ENG 2 LP valve MOTOR 1 SUPPLY and CONTROL are isolated.


On the ECAM lower DU:

  • the RIGHT LP valve indication shows the valve closed (amber cross-line).
7.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 2 switch in the ON position.
  • the RIGHT LP valve indication shows the valve open (green in-line)
  • the RIGHT LP valve must not operate for more than 5 seconds.
8.On the panel 115VU:
On the ECAM lower DU:

  • put the ENG/MASTER 2 switch to the OFF position.
  • the RIGHT LP valve indication shows the valve closed (amber cross-line)
  • the RIGHT LP valve must not operate for more than 5 seconds.
9.On the panel 49VU:

  • remove the safety clip and the tag and close the circuit breaker 2QG.
The ENG 2 LP valve MOTOR 1 SUPPLY and CONTROL are energized.
5. Close-up
Subtask 28-24-00-860-055-A
A. Aircraft Maintenance Configuration
   (1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
   (2) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
Subtask 28-24-00-942-056-A
B. Removal of Equipment
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the safety barriers.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 04:25:51 UTC
"Aviabrain" 2025