W DOC AIRBUS | AMM A320F

Removal of the Center Tank Fuel-Quantity-Probe


TASK 28-42-15-000-002-A
Removal of the Center Tank Fuel-Quantity-Probe


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: 35QT ** ON A/C NOT FOR ALL
FIN: 36QT ** ON A/C NOT FOR ALL
FIN: 37QT ** ON A/C NOT FOR ALL
FIN: 38QT ** ON A/C NOT FOR ALL
FIN: 39QT ** 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
CAP - BLANKING
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
460005835
1
SLEEVE - GROUND LOCK
 B. 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 32-12-00-010-001-A
Open the Main Gear Doors for Access
TASK 57-17-11-000-001-A
Removal of Access Cover 147AZ(148AZ)
3. Job Set-up
Subtask 28-42-15-941-061-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 (Ref. AMM TASK 28-10-00-910-001) when you do work in a fuel tank.
   (2) Put the SAFETY BARRIER(S) in position.
   (3) Put a WARNING NOTICE(S) in position to tell persons not to operate the MLG doors.
Subtask 28-42-15-650-054-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 28-42-15-865-051-A ** ON A/C NOT FOR ALL
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFUEL/FQI/CHAN/11QTA13
121VUFUEL/FQI/CHANNEL/1 AND 28QTL26
121VUFUEL/FQI/CHAN/22QTM27
Subtask 28-42-15-010-051-A ** ON A/C NOT FOR ALL
D. Get Access
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR ARE CLEAR.
   (1) Open the applicable MLG door(s) (Ref. AMM TASK 32-12-00-010-001).
   (2) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the applicable MLG door actuator(s).
   (3) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable access panel 147AZ (148AZ).
   (4) Remove the applicable access panel 147AZ and/or 148AZ (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-17-11-000-001).
4. Procedure
Subtask 28-42-15-020-058-A ** ON A/C NOT FOR ALL
A. Removal of the Center-Tank-Fuel-Quantity-Probes
CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
   (1) Cut the cable ties (7) and (8). Remove all the cut cable ties from the tank and discard.
CAUTION: DO NOT PULL THE WIRE WHEN YOU DISCONNECT AN ELECTRICAL CABLE. YOU MUST ONLY PULL THE PLASTIC HOUSING TO REMOVE THE CONNECTION. THIS WILL PREVENT DAMAGE TO THE ELECTRICAL CABLES.
   (2) Disconnect the electrical cables (3) from the probe (2) and put CAP - BLANKING on the electrical cables (3).

NOTE: Probe 39QT also has CIC connections.
   (3) Hold the probe (2) and remove the bolts (4) and the washers (5) and, for probes 35QT and 36QT, the nuts (6).
   (4) Carefully move the probe (2) out of the top support tube (1) and remove the probe (2) from the tank.
[Rev.10 from 2021] 2026.04.02 07:01:33 UTC