W DOC AIRBUS | AMM A320F

Removal of the Fuel-Pump Check-Valve

TASK 28-21-43-000-003-A
Removal of the Fuel-Pump Check-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.
WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
FIN: 37QM ** ON A/C NOT FOR ALL
FIN: 38QM ** ON A/C NOT FOR ALL
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
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
PLUG - BLANKING
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [37QM] (CHECK VALVE-FUEL PUMP, L VENT SURGE TK)
540RB
FOR [38QM] (CHECK VALVE-FUEL PUMP, R VENT SURGE TK)
640RB
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 28-10-00-910-001-A
Safety Procedures When You Do Work in a Fuel Tank
TASK 28-10-00-910-002-A
Access to the Fuel Tanks and the Work Areas
TASK 28-25-00-650-001-A
Pressure Defuel
TASK 28-25-00-650-003-A
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-650-003-A-01
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 57-27-11-000-002-A
Removal of the Access Panel
F Fuel-Pump Check-Valve 37QM(38QM)
3. Job Set-up
Subtask 28-21-43-941-057-A ** ON A/C NOT FOR ALL
A. Safety Precautions
WARNING: BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.
   (1) You must obey the fuel safety procedures, when you do work in a fuel tank (Ref. AMM TASK 28-10-00-910-001).
   (2) Put the SAFETY BARRIER(S) in position.
Subtask 28-21-43-650-054-A ** ON A/C NOT FOR ALL
B. Fuel Configuration
   (1) Defuel the applicable fuel tank (Ref. AMM TASK 28-25-00-650-001).
   (2) Drain the remaining fuel from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
Subtask 28-21-43-865-056-A ** ON A/C NOT FOR ALL
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUFUEL/CTR TK/PUMP2 SPLY30QAP26
121VUFUEL/CTR TK/PUMP1 SPLY29QAP23
** ON A/C NOT FOR ALL
121VUFUEL/L WING TK/PUMP2 SPLY7QAN26
121VUFUEL/L WING TK/PUMP1 SPLY1QAN23
121VUFUEL/R WING TK/PUMP2 SPLY8QAQ26
121VUFUEL/R WING TK/PUMP1 SPLY2QAQ23
123VUL WING TK/PUMP 1/STBY SPLY11QAAD12
123VUR WING TK/PUMP 1/STBY SPLY12QAAE12
Subtask 28-21-43-010-052-A ** ON A/C NOT FOR ALL
D. Get Access
   (1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below applicable access panel 540RB (640RB).
   (2) Remove the applicable wing access panel (Ref. AMM TASK 28-10-00-910-002) and (Ref. AMM TASK 57-27-11-000-002):
     (a) FOR [37QM] (CHECK VALVE-FUEL PUMP, L VENT SURGE TK)
Remove 540RB.
     (b) FOR [38QM] (CHECK VALVE-FUEL PUMP, R VENT SURGE TK)
Remove 640RB.
4. Procedure
Subtask 28-21-43-020-052-C ** ON A/C NOT FOR ALL
A. Removal of Fuel-Pump Check-Valve 37QM(38QM)
   (1) Disconnect the pipe (1) from the check valve (2).
   (2) Remove the check valve (2) from the pipe assembly (4).
   (3) Put the PLUG-BLANKING in each disconnected line end.
   (4) Remove and discard the O-ring (3).
[Rev.10 from 2021] 2026.04.02 07:01:47 UTC
"WTRUIB" 2025