W DOC AIRBUS | AMM A320F

Detailed Inspection of Wing Tank Fuel-Pumps for Detached Identification Labels

TASK 28-21-00-220-001-A
Detailed Inspection of Wing Tank Fuel-Pumps for Detached Identification Labels

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.
CAUTION: WHEN YOU REPLACE THE FUEL PUMP(S) 21QA(26QA) OR 25QA(22QA), EXAMINE THE APPLICABLE LANDING LIGHT ASSEMBLY FOR SIGNS OF FUEL CONTAMINATION. IF YOU FIND FUEL CONTAMINATION, EXAMINE THE ITEMS THAT FOLLOW FOR SIGNS OF FUEL LEAKAGE:
  • THE FUEL PUMP(S) 21QA(26QA) OR 25QA(22QA)
  • THE WATER DRAIN VALVE 25QM(26QM) DIRECTLY FORWARD OF THE LANDING LIGHT ASSEMBLY.
REFER TO AMM 28-11-00-06 FOR LEAKAGE LIMITS AND REPAIR AS NECESSARY. IF YOU DO NOT REPAIR THE LEAK, NO PERSONS MUST OPERATE THE APPLICABLE LANDING LIGHT UNTIL:
  • THE LEAK IS REPAIRED
  • THE LANDING LIGHT ASSEMBLY IS REPLACED.
ZONE: 540
ZONE: 640
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
540
FUEL TANK
640
FUEL TANK
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 28-00-00-910-001-A
Fuel Safety Procedures
TASK 28-21-51-000-001-A
Removal of the Fuel Pumps
TASK 28-21-51-400-001-A
Installation of the Fuel Pumps
TASK 73-11-10-000-002-A
Removal of the Fuel Filter Element
TASK 73-11-10-400-002-A
Installation of the Fuel Filter Element
F Wing Tank Fuel Pumps - Location and Detail ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 28-21-00-941-088-A ** ON A/C NOT FOR ALL
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.
Subtask 28-21-00-865-079-A ** ON A/C NOT FOR ALL
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** 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
122VULIGHTING/LANDING LT/R/CTL4LBT07
122VULIGHTING/LANDING LT/R/SPLY2LBT06
122VULIGHTING/LANDING LT/L/CTL3LBT05
122VULIGHTING/LANDING LT/L/SPLY1LBT04
123VUL WING TK/PUMP 1/STBY SPLY11QAAD12
123VUR WING TK/PUMP 1/STBY SPLY12QAAE12
Subtask 28-21-00-010-060-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below zone 540 (640).
   (2) Remove wing tank fuel pumps 21QA (26QA) and 25QA (22QA) (Ref. AMM TASK 28-21-51-000-001).
4. Procedure
Subtask 28-21-00-220-050-A ** ON A/C NOT FOR ALL
A. Detailed Inspection of Wing Tank Fuel Pumps for Detached Identification Labels
   (1) Do a detailed visual inspection of the fuel pump (2) and the pump canister (1) (Ref. SB 28-1102). Make sure that there are no signs of the disconnected labels (3) or (4) in the:
  • Inlet and outlet ports of the fuel pump (2)
  • Inlet and outlet ports of the pump canister (1).
   (2) Remove all pieces of the identification labels (3) or (4) on the fuel pump (2) and the pump canister (1).
   (3) If pieces of the identification labels (3) or (4) are found, you must do the maintenance procedure(s) as follows:
     (a) If contamination is found in the fuel pump (2) or the pump canister (1), the fuel filter must be examined:
       1 Remove the fuel filter (Ref. AMM TASK 73-11-10-000-002).
       2 Examine the fuel filter for signs of the label contamination. If contamination is found, the filter must be replaced.
       3 Install the fuel filter (Ref. AMM TASK 73-11-10-400-002).
     (b) If contamination is found in the ports of the fuel pump (2), the fuel pump (2) must be replaced.
5. Close-up
Subtask 28-21-00-410-060-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Install wing tank fuel pumps 21QA (26QA) and 25QA (22QA) (Ref. AMM TASK 28-21-51-400-001).
   (2) Remove the access platform(s).
Subtask 28-21-00-865-080-A ** ON A/C NOT FOR ALL
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** 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
122VULIGHTING/LANDING LT/R/CTL4LBT07
122VULIGHTING/LANDING LT/R/SPLY2LBT06
122VULIGHTING/LANDING LT/L/CTL3LBT05
122VULIGHTING/LANDING LT/L/SPLY1LBT04
123VUL WING TK/PUMP 1/STBY SPLY11QAAD12
123VUR WING TK/PUMP 1/STBY SPLY12QAAE12
Subtask 28-21-00-942-094-A ** ON A/C NOT FOR ALL
C. 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 00:04:25 UTC
"Aviabrain" 2025