Pressure Defuel

TASK 28-25-00-650-001-A
Pressure Defuel

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

WARNING: STOP THE FUEL TANKER 60 m (196.85 ft) FROM THE AIRCRAFT NOSE WHILE THE WEATHER RADAR OPERATES. DO NOT OPERATE THE FUEL TANKER/PUMP UNIT UNTIL YOU STOP THE OPERATION OF THE WEATHER RADAR.

WARNING: MAKE SURE THE AREA AROUND THE AIRCRAFT IS SAFE BEFORE YOU START THE REFUEL/DEFUEL PROCEDURE. IN THE SAFETY AREA, DO NOT:

SMOKE
MAKE SPARKS OR FIRE
USE ANY EQUIPMENT WHICH IS NOT APPROVED FOR REFUEL/DEFUEL PROCEDURES.

AIRCRAFT FUEL IS FLAMMABLE.

WARNING: DO NOT SPILL FUEL ON THE ENGINES OR THE BRAKES. IF YOU SPILL FUEL ON ENGINES OR BRAKES THAT ARE HOT, IT CAN CAUSE FIRES.

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 WHEEL CHOCKS ARE IN POSITION. MOVEMENT OF THE AIRCRAFT CAN BE DANGEROUS.

ZONE: 140
ZONE: 190
ZONE: 210
ZONE: 500
ZONE: 600

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	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
140	CENTER WING
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
500	LEFT WING
600	RIGHT WING
622KB
192MB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-001-A	General Refuel/Defuel Safety Procedures
TASK 12-11-28-650-002-A	Refuel/Defuel Safety Procedures for use in the Hangar
TASK 12-34-24-869-001-A	Aircraft Bonding and Grounding (Earthing) for the Refuel/Defuel or Oxygen Servicing Operations
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 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 28-25-00-650-005-A	To Drain the Remaining Fuel from the Additional Center Tank (ACT)
TASK 28-25-00-869-002-A	To Prime the ACT Transfer Pump
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 28-23-00-00	CROSSFEED SYSTEM - DESCRIPTION AND OPERATION
Defuel Safety Area ** ON A/C NOT FOR ALL
Refuel/Defuel Coupling ** ON A/C NOT FOR ALL
Defuel Safety Area ** ON A/C NOT FOR ALL
Refuel/Defuel Coupling ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU ** ON A/C NOT FOR ALL
Cockpit Fuel Control and Indications ** ON A/C NOT FOR ALL
Cockpit Fuel Control and Indications ** ON A/C NOT FOR ALL
Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU ** ON A/C NOT FOR ALL
Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL
Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL
Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel ** ON A/C NOT FOR ALL
Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panels 800VU and 801VU ** ON A/C NOT FOR ALL
Refuel/Defuel Panels 800VU and 801VU ** ON A/C NOT FOR ALL
Cockpit Fuel Control and Indications ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panels 800VU and 801VU ** ON A/C NOT FOR ALL
Cockpit Fuel Control and Indications ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 28-25-00-941-050-A

A. Safety Precautions
(1) Obey the safety procedures (Ref. AMM TASK 28-00-00-910-001).
(2) Obey the refuel/defuel safety procedure (Ref. AMM TASK 12-11-28-650-001), (Ref. AMM TASK 12-11-28-650-002).
(3) Make sure that the chocks are in position, near (or adjacent) to the Nose Landing Gear (NLG) and Main Landing Gear (MLG) tires.
(4) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 28-25-00-010-076-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open access door 192MB.

NOTE: If operating in battery power, Airbus recommends you to not to keep the door open longer than necessary because the battery power decreases.

Subtask 28-25-00-010-076-B ** ON A/C NOT FOR ALL

B. Get Access
(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position below the zone 622.
(2) Open the access door 622KB.

NOTE: If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.

Subtask 28-25-00-860-081-A ** ON A/C NOT FOR ALL

WARNING: MAKE SURE THAT THE FUEL SUPPLY HOSE IS CORRECTLY CONNECTED TO THE COUPLING BEFORE YOU REFUEL/DEFUEL THE AIRCRAFT. DO NOT CONNECT THE FUEL SUPPLY HOSE IF THERE ARE SIGNS OF DAMAGE TO THE AIRCRAFT COUPLING LUGS OR SLOTS.

CAUTION: IF YOU OPERATE THE APU DURING A DEFUEL PROCEDURE, MAKE SURE THAT THE FUEL LEVEL IN THE TANKS IS SUFFICIENT. IF THE FUEL IS BELOW THE LOW LEVEL, AIR CAN GO INTO THE FUEL FEED LINE. THIS WILL CAUSE THE APU TO STOP.

C. Aircraft Maintenance Configuration

Defuel Safety Area ** ON A/C NOT FOR ALL

Refuel/Defuel Coupling ** ON A/C NOT FOR ALL

NOTE: For maintenance procedures, it is not necessary to defuel both of the wing tanks. It is possible to have one wing tank empty and the other wing tank full.

(1) Put the access platform adjacent to refuel coupling 40QM.
(2) Make sure that the aircraft and the fuel tanker/pump are grounded correctly (Ref. AMM TASK 12-34-24-869-001).
(3) Do not spill fuel on the engines or the brakes. If you spill fuel on engines or brakes that are hot, it can cause fires.
(4) Remove refuel coupling cap 41QM.
(5) Make sure that the hose-coupling of the fuel tanker/pump unit is clean.
(6) Connect the hose-coupling of the fuel tanker/pump unit to the aircraft refuel/defuel coupling.
(7) Make sure that the fuel tanker(s) has(have) sufficient space for the fuel quantity to be defueled.
(8) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(9) Energize the ECAM system (Ref. AMM TASK 31-60-00-860-001).
(10) On the ECAM Control Panel:

push (in) the FUEL system page button.

(11) On refuel/defuel control panel 800VU:
(a) Make sure that the refuel valve switches are in the NORM and guarded position.
(b) Put the MODE SELECT switch to the DEFUEL XFR position and make sure that the OPEN light comes on.
(12) On panel 40VU, push (in) the X FEED P/BSW. Make sure that the ON and OPEN lights come on.
(13) Make sure that on the SD FUEL page the crossfeed valve indication is shown green in-line (valve open) (Ref. AMM D/O 28-23-00-00).

Subtask 28-25-00-860-081-B ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration

Defuel Safety Area ** ON A/C NOT FOR ALL

Refuel/Defuel Coupling ** ON A/C NOT FOR ALL

NOTE: For maintenance procedures, it is not necessary to defuel both of the wing tanks. It is possible to have one wing tank empty and the other wing tank full.

(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE adjacent to the applicable refuel coupling 100QM (40QM).
(2) Make sure that the aircraft and the fuel tanker/pump unit are grounded correctly (Ref. AMM TASK 12-34-24-869-001).
(3) Do not spill fuel on the engines or the brakes. If you spill fuel on engines or brakes that are hot, it can cause fires.
(4) Remove the applicable refuel coupling cap 101QM (41QM).
(5) Make sure that the hose-coupling of the fuel tanker/pump unit is clean.
(6) Connect the hose-coupling of the fuel tanker/pump unit to the aircraft refuel/defuel coupling.

NOTE: Make sure there is sufficient space in the fuel tanker for the movement of fuel from the aircraft tanks.

(7) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(8) Energize the ECAM system (Ref. AMM TASK 31-60-00-860-001).
(9) On the ECAM Control Panel:

push (in) the FUEL system page button.

(10) On the refuel/defuel control panel 800VU:
(a) Make sure that the refuel valve switches are in the NORM and guarded position.
(b) Put the MODE SELECT switch to the DEFUEL XFR position and make sure that the OPEN light comes on.
(11) On the panel 40VU, push (in) the X FEED P/BSW. Make sure that the ON and OPEN lights come on.
(12) Make sure that on the SD FUEL page the crossfeed valve indication is shown green in-line (valve open) (Ref. AMM D/O 28-23-00-00).

Subtask 28-25-00-860-081-C ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration

Defuel Safety Area ** ON A/C NOT FOR ALL

Refuel/Defuel Coupling ** ON A/C NOT FOR ALL

NOTE: For maintenance procedures, it is not necessary to defuel both of the wing tanks. It is possible to have one wing tank empty and the other wing tank full.

(1) Prime the ACT transfer pump (Ref. AMM TASK 28-25-00-869-002).

WARNING: MAKE SURE THAT YOU BOND THE FUEL TANKER TO THE AIRCRAFT. IF YOU DO NOT, AN ELECTRICAL DISCHARGE CAN OCCUR WHICH CAN CAUSE AN EXPLOSION OR FIRE.

(2) Obey the local regulations for grounding (earthing) the aircraft. If you must ground (earth) the aircraft:
(a) Ground (earth) the fuel tanker/pump unit and the aircraft correctly (Ref. AMM TASK 12-34-24-869-001).
(3) Bond the fuel tanker/pump unit to the aircraft (Ref. AMM TASK 12-34-24-869-001).
(4) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE adjacent to refuel/defuel coupling 40QM.
(5) Remove refuel/defuel coupling cap 41QM.
(6) Make sure that the hose-coupling of the fuel tanker/pump unit is clean.

(7) Connect the hose coupling of the fuel tanker/pump unit to aircraft refuel/defuel coupling 40QM.
(8) Make sure that the fuel tanker(s) has (have) sufficient space for the fuel quantity to be defueled.
(9) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(10) Do an Electronic Instrument System (EIS) (Electronic Centralized Aircraft Monitoring - ECAM only) start procedure (Ref. AMM TASK 31-60-00-860-001).
(11) On the ECAM Control Panel:
(a) Push the FUEL system page button.
(12) On refuel/defuel control panel 800VU:
(a) Put the REFUEL VALVES switches to the SHUT position.
(b) Put the MODE SELECT switch to the DEFUEL XFR position and make sure that the OPEN light comes on.
(13) On refuel/defuel control panel 801VU:
(a) Make sure that the REFUEL VALVE switch(es) is (are) in the NORM and guarded position.
(14) On fuel control panel 40VU, push the X FEED P/BSW. Make sure that the ON and OPEN legends come on.
(15) Make sure that on the FUEL page of the ECAM lower Display Unit (DU), the crossfeed valve indication is shown green in-line (valve open) (Ref. AMM D/O 28-23-00-00).

Subtask 28-25-00-860-081-D ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration

Defuel Safety Area ** ON A/C NOT FOR ALL

Refuel/Defuel Coupling ** ON A/C NOT FOR ALL

NOTE: You must prime the ACT transfer pump (Ref. AMM TASK 28-25-00-869-002) before you can move fuel from the ACT into the center tank.

NOTE: For maintenance procedures, it is not necessary to defuel both of the wing tanks. It is possible to have one wing tank empty and the other wing tank full.

NOTE: Make sure there is sufficient space in the fuel tanker for the movement of fuel from the aircraft tanks.

(7) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(8) Energize the ECAM system (Ref. AMM TASK 31-60-00-860-001).
(9) On the ECAM Control Panel:

push (in) the FUEL system page button.

(10) On the refuel/defuel control panels 800VU and 801VU:
(a) Make sure that the refuel valve switches are in the NORM and guarded position.
(b) Put the MODE SELECT switch to the DEFUEL XFR position and make sure that the OPEN light comes on.
(11) On the panel 40VU, push (in) the X FEED P/BSW. Make sure that the ON and OPEN lights come on.
(12) Make sure that on the SD FUEL page the crossfeed valve indication is shown green in-line (valve open) (Ref. AMM D/O 28-23-00-00).

4. Procedure

WARNING: WHEN YOU OPERATE THE FUEL PUMPS DURING A MAINTENANCE PROCEDURE, A MAINTENANCE PERSON MUST BE IN THE COCKPIT. THIS PERSON MUST STOP THE PUMPS WHEN THE LOW PRESSURE FAULT LIGHT(S) (ON PANEL 40VU) COME ON, TO PREVENT OPERATION OF THE PUMPS(S) WITHOUT FUEL ('DRY RUNNING'). OPERATION OF THE PUMPS WITHOUT FUEL CAN CAUSE A FIRE.

Subtask 28-25-00-650-057-B ** ON A/C NOT FOR ALL

A. Pressure Defuel

Refuel/Defuel Control Panel 800VU ** ON A/C NOT FOR ALL

Cockpit Fuel Control and Indications ** ON A/C NOT FOR ALL

Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL

CAUTION: DO NOT LET THE FUEL PUMPS OPERATE FOR MORE THAN 15 MINUTES WITH THE FAULT LIGHT ON. THIS CAN CAUSE DAMAGE TO THE FUEL PUMPS.

(1) On fuel control-panel 40VU:
(a) Push the MODE SEL pushbutton switch:
1 Make sure that the MAN light of the MODE SEL pushbutton switch goes off (The center tank pumps is in automatic control at this time).

NOTE: You can defuel the center tank with the center tank pumps in manual control.

(b) Push the applicable TK PUMPS pushbutton switches:
1 Make sure that the OFF lights of the applicable pushbutton switch goes off.
(2) On the SD FUEL page, monitor the fuel quantity indications:
(a) Make sure that the applicable fuel quantity indications and the Fuel On Board (FOB) indications decrease.

NOTE: When you defuel the left (right) wing tank and/or center (transfer) tank, a small quantity of fuel will go into the opposite wing tank. This is because the crossfeed valve is open and fuel can go through the grooves in the suction bypass valve.

(3) When the fuel quantity decreases to the necessary level:
(a) On fuel control-panel 40VU:
1 Release the applicable TK PUMPS pushbutton switches:
a Make sure that the OFF lights of the related TK PUMPS pushbutton switches come on.
2 Release the MODE SEL pushbutton switch:
a Make sure that the MAN light of the MODE SEL pushbutton switch comes on (the center tank pumps is in manual control at this time).
(b) On the SD FUEL page, make sure that the tank contents become stable.
(4) To defuel the wing tanks until they are empty, do the steps that follow:
(a) On fuel control-panel 40VU:
1 Make sure that the MODE SEL pushbutton switch is released out.
2 Make sure that the MAN light is on (the center tank pumps are in manual control at this time).
3 Push L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches:
a Make sure that the OFF lights of the applicable pushbutton switches go off.
4 Operate L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches until the FAULT light of the applicable pushbutton switch comes on.
5 Release L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches:
a Make sure that the OFF lights of the applicable pushbutton switches come on.
b Make sure that the applicable FAULT lights of the pushbutton switches go off.
(b) Drain the remaining fuel from the tank(s) (Ref. AMM TASK 28-25-00-650-003).

WARNING: BEFORE YOU COMPLETE THIS DEFUEL PROCEDURE, MAKE SURE THAT:

ALL THE FUEL PUMPS ARE OFF, OR
THE FUEL PUMPS ARE ON WITH MODE SEL PUSHBUTTON SWITCH 48QA IN THE AUTO POSITION.

IF THE FUEL PUMPS ARE ON AND MODE SEL PUSHBUTTON SWITCH 48QA IS NOT IN THE AUTO POSITION, THERE IS A RISK THAT FUEL WILL SPILL.

(5) To defuel the center tank until it is empty, do the steps that follow:
(a) On fuel control-panel 40VU:
1 Push the MODE SEL pushbutton switch:
a Make sure that the MAN light of the MODE SEL pushbutton switch goes off (The center tank pumps are in automatic control at this time).
2 Push CTR TK PUMPS 1 and 2 pushbutton switches:
a Make sure that the OFF lights of CTR TK PUMPS 1 and 2 pushbutton switches go off.
3 Let CTR TK PUMPS 1 and 2 operate until the FAULT lights of CTR TK PUMPS 1 and 2 pushbutton switches com on:
4 On the ECAM lower DU, make sure that:
a The CTR in-line green-symbol goes off.
b The CTR cross-line amber-symbol comes on.
5 Release CTR TK PUMPS 1 and 2 pushbutton switches:
a Make sure that the applicable OFF lights come on.
b Make sure that the applicable FAULT lights go off.
6 Release the MODE SEL pushbutton switch:
a Make sure that the MAN light of the MODE SEL pushbutton switch comes on (the center tank pumps is in manual control at this time).
(b) Drain the remaining fuel from the center tank (Ref. AMM TASK 28-25-00-650-003).

Subtask 28-25-00-650-057-C ** ON A/C NOT FOR ALL

A. Pressure Defuel

Refuel/Defuel Control Panel 800VU ** ON A/C NOT FOR ALL

Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL

NOTE: After you complete the maintenance procedure that follows:

There is a risk of surge tank overflow if the MODE SEL (4QL) pushbutton swtich stays in the MAN mode.

CAUTION: DO NOT LET THE FUEL PUMPS OPERATE FOR MORE THAN 15 MINUTES WITH THE FAULT LIGHT ON. THIS CAN CAUSE DAMAGE TO THE FUEL PUMPS.

(1) On fuel control-panel 40VU:
(a) Push the MODE SEL pushbutton switch:
1 Make sure that the MAN light of the MODE SEL pushbutton switch goes off (the center-tank transfer system is in automatic control at this time).

NOTE: You can move the fuel from the center tank with the center-tank transfer system in manual control.

(b) Push the L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches and the related CTR TK XFR pushbutton switch:
1 Make sure that the OFF lights of the applicable pushbutton switches go off.

NOTE: You can defuel the center (transfer) tank. It is not necessary to defuel the wing tank(s) if there is sufficient space in the wing tank(s) for the center tank fuel.
If you defuel only the wing tank(s), the fuel from the wing tanks will move to the center (transfer) because of gravity. This will also occur if the CTR TK XFR pushbutton switches (on fuel control-panel 40VU) are released out (the control valve(s) is (are) closed).

(2) On the SD FUEL page, monitor the fuel quantity indications:

NOTE: When you defuel the left (right) wing tank and/or the center (transfer) tank, a small quantity of fuel will go into the opposite wing tank. This is because the crossfeed valve is open and fuel can go through the grooves in the suction bypass valve.

(3) Make sure that the applicable fuel quantity indications and the Fuel On Board (FOB) indications decrease.
(4) When the fuel quantity decreases to the necessary level:
(a) On fuel control-panel 40VU:
1 Release the L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches.
2 Release the related CTR TK XFR pushbutton switch.
3 Make sure that the OFF lights of the applicable pushbutton switches come on.
4 Release the MODE SEL pushbutton switch:
a Make sure that the MAN light of the MODE SEL pushbutton switch comes on (the center-tank transfer system is in manual control at this time).
(b) On the SD FUEL page:
1 Make sure that the fuel quantity indications become stable.
2 Make sure that the fuel quantity indication for the center (transfer) tank stops to decrease.
(5) Do the steps that follow to defuel the wing tank(s) and the center (transfer) tank until they are empty:

WARNING: BEFORE YOU COMPLETE THIS DEFUEL PROCEDURE, MAKE SURE THAT:

ALL THE FUEL PUMPS ARE OFF, OR
THE FUEL PUMPS ARE ON WITH MODE SEL PUSHBUTTON SWITCH 48QA IN THE AUTO POSITION.

IF THE FUEL PUMPS ARE ON AND MODE SEL PUSHBUTTON SWITCH 48QA IS NOT IN THE AUTO POSITION, THERE IS A RISK THAT FUEL WILL SPILL.

WARNING: MOVE ALL THE FUEL OUT OF THE CENTER TANK BEFORE YOU GET ACCESS TO A WING TANK. FUEL IN THE CENTER TANK WILL MOVE INTO AN EMPTY WING TANK BY GRAVITY.

(a) On fuel control-panel 40VU:
1 Push the MODE SEL pushbutton switch:
a Make sure that the MAN light of the MODE SEL pushbutton switch goes off (the center-tank transfer system is in automatic control at this time).
2 Push the L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches.
3 Push the related CTR TK XFR pushbutton switch.
4 Make sure that the OFF lights of the applicable pushbutton switches go off.

NOTE: You can defuel the center (transfer) tank. It is not necessary to defuel the wing tank(s) if there is sufficient space (in the wing tank(s)) for the center tank fuel.
If you defuel only the wing tank(s), the fuel from the wing tanks will move to the center (transfer) because of gravity. This will also occur if the CTR TK XFR pushbutton switches (on fuel control-panel 40VU) are released out (the control valve(s) is (are) closed).

5 On the ECAM lower Display Unit (DU), monitor the left (right) wing tank(s) and the center (transfer) tank fuel-quantity.
6 When the fuel quantity in the left (right) wing tank(s) and the center (transfer) tank shows zero for 2 minutes, on fuel control-panel 40VU:
a Release the L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches.
b Release the CTR TK L XFR (CTR TK R XFR) pushbutton switches.
c Make sure that the OFF lights of the applicable pushbutton switches come on.
(b) Drain the remaining fuel from the tank (Ref. AMM TASK 28-25-00-650-003).

Subtask 28-25-00-650-078-E ** ON A/C NOT FOR ALL

B. Pressure Defuel (ACT Installed)

Refuel/Defuel Control Panel ** ON A/C NOT FOR ALL

Cockpit Fuel Controls and Indications ** ON A/C NOT FOR ALL

CAUTION: DO NOT LET THE FUEL PUMPS OPERATE FOR MORE THAN 15 MINUTES WITH THE FAULT LIGHT ON. THIS CAN CAUSE DAMAGE TO THE FUEL PUMPS.

(1) On fuel control-panel 40VU:
(a) Push (in) the MODE SEL pushbutton switch:
1 Make sure that the MAN light of the MODE SEL pushbutton switch goes off.
(2) On fuel control-panel 40VU:
(a) Push (in) L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches and the related CTR TK XFR pushbutton switch.
(b) Push (in) the ACT AUTO pushbutton switch to set it to the FWD position.
(c) Make sure that the applicable pushbutton switches are on (the OFF lights go off).
(3) On the SD FUEL page, monitor the fuel quantity indications:
(a) Make sure that the applicable fuel quantity indications and the Fuel On Board (FOB) indications decrease.

NOTE: When you defuel the wing tanks only, the fuel from the wing tanks will move to the center (transfer) because of the gravity.

(4) When the fuel quantity has decreased to the necessary level:
(a) On fuel control-panel 40VU:
1 Release (out) L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches and the related CTR TK XFR pushbutton switch.
2 Release (out) the ACT AUTO pushbutton switch (set to the AUTO position).
3 Make sure that the OFF lights of the applicable pushbutton switches come on.
(b) On the SD FUEL page:
1 Make sure that the fuel quantity indications become stable.
2 Make sure that the fuel quantity indication for the center tank stops to decrease.
(5) To defuel the ACT until empty, do the steps that follow:
(a) Before you do this procedure, make sure that the center tank has sufficient space for the fuel from the ACT.
(b) On fuel control-panel 40VU, set the ACT AUTO pushbutton switch to the FWD position:
1 On the ECAM lower DU, make sure that the ACT fuel quantity decreases and that the CTR fuel quantity increases.
(c) On the ECAM lower DU, when the ACT fuel quantity indication zero for 2 minutes:
1 On fuel control-panel 40VU, set the ACT AUTO pushbutton switch to the AUTO position.
(d) If necessary, drain the remaining fuel from the ACT (Ref. AMM TASK 28-25-00-650-005).
(6) To defuel the center (transfer) tank until empty, do the steps that follow:

WARNING: MOVE ALL THE FUEL OUT OF THE CENTER TANK BEFORE YOU GET ACCESS TO A WING TANK. FUEL IN THE CENTER TANK WILL MOVE INTO AN EMPTY WING TANK BY GRAVITY.

(a) On fuel control-panel 40VU:
1 Push (in) the CTR TK L XFR (CTR TK R XFR) pushbutton switches and related TK PUMPS 1 and 2 pushbutton switches:
a Make sure that the applicable pushbutton switch OFF lights go off.
2 On the ECAM lower DU, monitor the center (transfer) tank fuel quantity.
3 When the center (transfer) tank fuel quantity indication is zero for 2 minutes, on fuel control-panel 40VU:
a Release (out) the CTR TK L XFR (CTR TK R XFR) pushbutton switches.
b Release (out) related TK PUMPS 1 and 2 pushbutton switches.
c Make sure that the OFF lights of the applicable pushbutton switches come on.
(b) Drain the remaining fuel from the tank (Ref. AMM TASK 28-25-00-650-003).

Subtask 28-25-00-650-080-A ** ON A/C NOT FOR ALL

C. Pressure Defuel

Refuel/Defuel Control Panels 800VU and 801VU ** ON A/C NOT FOR ALL

Refuel/Defuel Panels 800VU and 801VU ** ON A/C NOT FOR ALL

Cockpit Fuel Control and Indications ** ON A/C NOT FOR ALL

CAUTION: DO NOT LET THE FUEL PUMPS OPERATE FOR MORE THAN 15 MINUTES WITH THE FAULT LIGHT ON. THIS CAN CAUSE DAMAGE TO THE FUEL PUMPS.

(1) On fuel control-panel 40VU:
(a) Push (in) the MODE SEL pushbutton switch:
1 Make sure that the MAN light of the MODE SEL pushbutton switch goes off.
(2) On fuel control-panel 40VU:
(a) Push (in) L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches and the related CTR TK XFR pushbutton switch.
(b) Push (in) the ACT AUTO pushbutton switch to set it to the FWD position.
(c) Make sure that the applicable pushbutton switches OFF lights go off.
(3) On the SD FUEL page, monitor the fuel quantity indications:
(a) Make sure that the applicable fuel quantity indications and the Fuel On Board (FOB) indications decrease.

NOTE: When you defuel the wing tanks only, the fuel from the wing tanks will move to the center (transfer) because of the gravity.

(4) When the fuel quantity has decreased to the necessary level:
(a) On fuel control-panel 40VU:
1 Release (out) L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches.
2 Release (out) the related CTR TK XFR pushbutton switch.
3 Release (out) the ACT AUTO pushbutton switch (set to the AUTO position).
4 Make sure that the applicable pushbutton switch OFF lights come on.
(b) On the SD FUEL page:
1 Make sure that the fuel quantity indications become stable.
2 Make sure that the fuel quantity indication for the center tank stops to decrease.
(5) To defuel the installed ACT(s) until empty, do the steps that follow:
(a) Before you do this procedure, make sure that the center tank has sufficient space for the fuel from the ACT(s).
(b) On fuel contro-panel 40VU, set the ACT AUTO pushbutton switch to the FWD position:
1 On the ECAM lower DU, make sure that the applicable ACT fuel quantity decreases and that the CTR fuel quantity increases.
(c) On the ECAM lower DU, when the applicable ACT fuel quantity indication is zero for 2 minutes:
1 On fuel control-panel 40VU, set the ACT AUTO pushbutton switch to the AUTO position.
(d) If necessary, drain the remaining fuel from the ACT(s) (Ref. AMM TASK 28-25-00-650-005).
(6) To defuel the center (transfer) tank until empty, do the steps that follow:

WARNING: MOVE ALL THE FUEL OUT OF THE CENTER TANK BEFORE YOU GET ACCESS TO A WING TANK. FUEL IN THE CENTER TANK WILL MOVE INTO AN EMPTY WING TANK BY GRAVITY.

(a) On fuel control-panel 40VU:
1 Push (in) the CTR TK L XFR (CTR TK R XFR) pushbutton switches and related TK PUMPS 1 and 2 pushbutton switches:
a Make sure that the applicable pushbutton switch OFF lights go off.
2 On the ECAM lower DU, monitor the center (transfer) tank fuel quantity.
3 When the center (transfer) tank fuel quantity indication is zero for 2 minutes, on fuel control-panel 40VU:
a Release (out) the CTR TK L XFR (CTR TK R XFR) pushbutton switches.
b Release (out) related TK PUMPS 1 and 2 pushbutton switches.
c Make sure that the OFF lights of the applicable pushbutton switches come on.
(b) If necessary, drain the remaining fuel from the tank (Ref. AMM TASK 28-25-00-650-003).

Subtask 28-25-00-650-074-C ** ON A/C NOT FOR ALL

D. Pressure Defuel (ACT(s) Installed)

Refuel/Defuel Control Panels 800VU and 801VU ** ON A/C NOT FOR ALL

Cockpit Fuel Control and Indications ** ON A/C NOT FOR ALL

CAUTION: DO NOT LET THE FUEL PUMPS OPERATE FOR MORE THAN 15 MINUTES WITH THE FAULT LIGHT ON. THIS CAN CAUSE DAMAGE TO THE FUEL PUMPS.

(1) On fuel control panel 40VU:
(a) Push the MODE SEL pushbutton switch:
1 Make sure that the MAN legend of the MODE SEL pushbutton switch goes off (the center-tank transfer system is in the automatic control at this time).

NOTE: It is possible to defuel the center tank with the center-tank transfer system in the manual control.

(b) Push L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches and the CTR TK L XFR (the CTR TK R XFR) pushbutton switches:
1 Make sure that the OFF legends of the applicable pushbutton switches go off.

NOTE: You can defuel the center tank without defuel the wing tank(s) if there is sufficient space in the wing tank(s) for the center tank fuel. If you defuel the wing tank(s) only, the fuel from the wing tanks wil move to the center (transfer) because of the gravity. This will also occur if the CTR TK L XFR (the CTR TK R XFR) pushbutton switches are released.

(2) On the FUEL page of the ECAM lower DU, monitor the fuel quantity indications:
(a) Make sure that the applicable fuel quantity indications and the Fuel On Board (FOB) indications decrease.

(3) When the fuel quantity is decreased to the necessary level:
(a) On fuel control-panel 40VU:
1 Release L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches and the CTR TK L XFR (the CTR TK R XFR) pushbutton switches:
a Make sure that the OFF legends of the applicable pushbutton switches come on.
2 Release the MODE SEL pushbutton switch:
a Make sure that the MAN legend of the MODE SEL pushbutton switch comes on (the center-tank transfer system is in the manual control at this time).
(b) On the FUEL page of the ECAM lower DU, make sure that the fuel quantity indications become stable.
(4) To defuel the wing tank(s) until they are empty, do the steps that follow:
(a) On fuel control panel 40VU:
1 Make sure that the MODE SEL pushbutton switch is released.
2 Make sure that the MAN legend is on (the center-tank transfer system is in the manual control).
3 Push L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches:
a Make sure that the OFF legends of the applicable pushbutton switches go off.
4 Let the fuel pumps operate until the FAULT lights on L TK PUMPS 1 and 2 (R TK PUMPS 1 and 2) pushbutton switches come on.
5 Release L TK PUMPS 1 and 2 (R TKPUMPS 1 and 2) pushbutton switches:
a Make sure that the applicable OFF legends come on.
b Make sure that the applicable FAULT legends go off.
(b) Drain the remaining fuel from the wing tank(s) (Ref. AMM TASK 28-25-00-650-003).
(5) To defuel the center tank until they are empty, do the steps that follow:
(a) On fuel control-panel 40VU:
1 Push the MODE SEL pushbutton switch:
a Make sure that the MAN legend of the MODE SEL pushbutton switch goes off (the center-tank transfer system is in the automatic control at this time).
2 Push CTR TK L XFR (CTR TK R XFR) pushbutton switches:
a Make sure that the OFF legend(s) of the applicable pushbutton switches go off.
3 Let the fuel pump(s) operate until FAULT legend(s) on CTR TK L XFR (CTR TK R XFR) pushbutton switches come(s) on.
4 On the ECAM lower DU, make sure that:
a The CTR in-line green symbol goes off.
b The CTR cross-line amber symbol comes on.
5 Release the CTR TK L XFR (the CTR TK R XFR) pushbutton switches:
a Make sure that the applicable OFF legend(s) come on.
b Make sure that the applicable FAULT legend(s) go off.
6 Release the MODE SEL pushbutton switch:
a Make sure that the MAN legend of the MODE SEL pushbutton switch comes on (the center-tank transfer system is in the manual control at this time).
(b) Drain the remaining fuel from the center tank (Ref. AMM TASK 28-25-00-650-003).

CAUTION: BEFORE YOU SET THE ACT XFR/MODE SELECTOR SWITCH ON ACT CONTROL PANEL 28VU TO THE MAN POSITION, SET THE MODE SELECTOR SWITCH ON REFUEL/DEFUEL CONTROL PANEL 800VU TO OFF. MAKE SURE THAT THIS MODE SELECTOR SWITCH STAYS IN THE OFF POSITION UNTIL THE FUEL TRANSFER FROM THE ACT(S) IS COMPLETED AND THE ACT XFR/ MODE SELECTOR SWITCH ON ACT CONTROL PANEL 28VU GOES BACK TO THE AUTO POSITION. IF YOU DO NOT OBEY THESE INSTRUCTIONS, UNWANTED FUEL MOVEMENT OR OVERFLOW CAN OCCUR.

(6) To defuel the ACT(s) until it (they) is (are) empty, do the steps that follow:
(a) Before you do this procedure, make sure that the center tank has sufficient space for the fuel from the ACT(s):
1 If necessary, defuel the center tank again, or continuously defuel the center tank while the fuel flows from the ACT(s).
(b) On ACT control panel 28VU, push the ACT XFR MODE SEL pushbutton switch:
1 Make sure that the MAN legend comes on.
(c) Set the adjacent selector-switch to the applicable ACT.

NOTE: The ACT transfer pump will stop if the center tank high-level-sensor becomes wet and continues when it becomes dry.

(d) Turn the selector switch to the subsequent ACT (if installed) with fuel when the selected ACT is empty:
1 On ACT control panel 28VU, the ACT XFR MODE SEL FAULT legend comes on when the selected ACT is empty.

NOTE: The ACT fuel-transfer sequence is ACT FWD (if installed), ACT AFT2 (if installed) and ACT AFT1.

(e) If necessary, drain the remaining fuel from the ACT(s) (Ref. AMM TASK 28-25-00-650-005).

5. Close-up
Subtask 28-25-00-860-093-A

A. Aircraft Maintenance Configuration

CAUTION: BEFORE YOU CLOSE THE CROSSFEED VALVE, MAKE SURE THAT THE FUEL PUMP(S) IS(ARE) OFF. THIS WILL PREVENT DAMAGE TO THE CROSSFEED VALVE.

(1) On panel 40VU, release the X FEED P/BSW. Make sure that the ON and OPEN legends go off.
(2) On the FUEL page of the ECAM lower DU, make sure that the crossfeed valve indication shows green cross-line (valve closed).
(3) On refuel/defuel panel 800VU:
(a) Put the MODE SELECT switch to the OFF and guarded position. Make sure that the OPEN light goes off.
(b) Set the REFUEL VALVES switches to the NORM and guarded position.

Subtask 28-25-00-410-050-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 192MB.

Subtask 28-25-00-410-050-B ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 622KB.

Subtask 28-25-00-862-050-A

C. De-energize the Electrical Circuits
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 28-25-00-942-074-A ** ON A/C NOT FOR ALL

D. Removal of Equipment
(1) If installed, remove the safety barriers.
(2) Disconnect the hose coupling of the fuel tanker/pump unit from aircraft refuel/defuel coupling 40QM.

CAUTION: MAKE SURE THAT THE HANDLE OF THE REFUEL COUPLING CAP POINTS AFT WHEN THE CAP IS CLOSED AND LOCKED.

(3) Install refuel/defuel coupling cap 41QM on refuel/defuel coupling 40QM.
(4) Disconnect these bonding/ground cables:

Between the aircraft and the fuel tanker/pump unit.
If applicable, between the fuel tanker/pump unit and the ground.
If applicable, between the aircraft and the ground.

(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

Subtask 28-25-00-942-074-B ** ON A/C NOT FOR ALL

D. Removal of Equipment
(1) Remove the safety barriers.
(2) Disconnect the hose coupling of the fuel tanker from the aircraft.
(3) Disconnect these bonding/ground cables:

between the aircraft and the fuel tanker/pump unit
if applicable, between the fuel tanker/pump unit and the ground
if applicable, between the aircraft and the ground.

(4) Install the refuel coupling cap 101QM (41QM) on the refuel/defuel coupling 100QM (40QM).
(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 03:54:04 UTC