To drain the fuel from the fuel pipes

TASK 28-25-00-650-006-A
To drain the fuel from the fuel pipes

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: 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: 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: DO NOT GO INTO A FUEL TANK UNTIL THE FUEL-GAS CONCENTRATION IS LESS THAN 10% OF THE APPLICABLE LEL (LOWER EXPLOSIVE LIMIT) (OR LESS THAN THE LOCAL REGULATORY-AUTHORITY LIMIT).

WARNING: DO NOT REMOVE YOUR RESPIRATOR WHILE YOU ARE IN A FUEL TANK (UNLESS THE FUEL-GAS CONCENTRATION IS LESS THAN 5% OF LEL (LOWER EXPLOSIVE LIMIT)). YOU WILL BECOME ILL OR DIE.

WARNING: BE CAREFUL NOT TO GET AIRCRAFT FUEL IN YOUR MOUTH OR IN YOUR EYES. IF YOU GET FUEL ON YOUR SKIN OR ON YOUR CLOTHES, FLUSH IT IMMEDIATELY WITH WATER. IF NECESSARY, GET MEDICAL HELP. AIRCRAFT FUEL IS POISONOUS.

WARNING: DO NOT GET YOUR CLOTHES SOAKED WITH FUEL.

WARNING: USE THE APPROVED PROTECTIVE CLOTHING WHEN YOU GO IN A FUEL TANK.

CAUTION: DO NOT USE THE FUEL PIPES AND THE EQUIPMENT AS HANDHOLDS WHEN YOU DO WORK IN A FUEL TANK. THIS WILL PREVENT DAMAGE TO THEM.

ZONE: 190
ZONE: 210
ZONE: 540
ZONE: 640

1. Reason for the Job

NOTE: Two persons are necessary for this procedure.

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	CONTAINER 50 L(15 USGAL)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
97A28002117002	1	TOOL-PURGING
98A28104000002	1	TOOL - PURGING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
540	FUEL TANK
640	FUEL TANK
FOR [94QM] (VALVE-WATER DRAIN, L CTR TK)
195BB
FOR [95QM] (VALVE-WATER DRAIN, R CTR TK)
196BB

C. 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 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 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
Defuel Safety Area ** ON A/C NOT FOR ALL
Defuel Safety Area ** ON A/C NOT FOR ALL
Location of the Water Drain Valve ** ON A/C NOT FOR ALL
Location of the Water Drain Valve ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 28-25-00-860-097-A

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

A. Aircraft Maintenance Configuration

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

(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) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(3) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(4) Open the Main Landing Gear (MLG) doors (Ref. AMM TASK 32-12-00-010-001).
(5) Make sure that the ground safety locks are installed on the MLG (Ref. AMM TASK 32-00-00-481-001).
(6) In the cockpit, on right center-instrument-panel 400VU:

Make sure that landing-gear control-lever 6GA is in the DOWN position
Put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear.

(7) Put the WARNING NOTICE(S) adjacent to the landing gear doors to tell persons not to go near the landing gear doors.
(8) If the fuel temperature is less than -5 DEG.C (23 DEG.F) and/or the water drain valves are frozen, use an approved heating equipment to make the drain valve areas hot.

NOTE: Airbus recommends that you do not apply force unusually high to open the water drain valve.

Subtask 28-25-00-010-099-A

B. Get Access

Location of the Water Drain Valve ** ON A/C NOT FOR ALL

(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE below the applicable water drain valve.
(2) Put a CONTAINER 50 L(15 USGAL) below the applicable water drain valve:

Approximately 40 l (11 USgal) to 80 l (21 USgal) of fuel will drain from the center tank
Approximately 40 l (11 USgal) of fuel will drain from the each wing tank.

(3) FOR [94QM] (VALVE-WATER DRAIN, L CTR TK)
(a) Open access door 195BB.
(4) FOR [95QM] (VALVE-WATER DRAIN, R CTR TK)
(a) Open access door 196BB.

4. Procedure
Subtask 28-25-00-650-088-A ** ON A/C NOT FOR ALL

A. To drain the fuel from the fuel pipes
(1) Defuel the aircraft fuel tanks (Ref. AMM TASK 28-25-00-650-001):
(a) Make sure that the left wing tank, right wing tank and center tank pumps stay at low pressure for a minimum of 3 minutes.

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.

(2) Drain the remaining fuel from the left wing tank, right wing tank, outer cells, vent surge tanks and center tank (Ref. AMM TASK 28-25-00-650-003).

NOTE: You can use a 97A28002117002 TOOL-PURGING or a 98A28104000002 TOOL - PURGING to drain the remaining fuel.

NOTE: The fuel will drain slowly, thus it can take overnight for the fuel to drain out fully.

(3) Get access to the wing tank and the centre tank (Ref. AMM TASK 28-10-00-910-002).
(4) Obey the fuel safety procedure and remove the remaining fuel with the help of sponges and/or vacuum.

NOTE: Some fuel will stay in the refuel gallery pipes and the engine feed pipes after this procedure.

Subtask 28-25-00-650-088-B ** 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.

(2) Drain the remaining fuel from the left wing tank, right wing tank, vent surge tanks and center tank (Ref. AMM TASK 28-25-00-650-003).

NOTE: You can use a 97A28002117002 TOOL-PURGING or a 98A28104000002 TOOL - PURGING to drain the remaining fuel.

NOTE: The fuel will drain slowly, thus it can take overnight for the fuel to drain out fully.

(3) Get access to the wing tank and the centre tank (Ref. AMM TASK 28-10-00-910-002).
(4) Obey the fuel safety procedure and remove the remaining fuel with the help of sponges and/or vacuum.

NOTE: Some fuel will stay in the refuel gallery pipes and the engine feed pipes after this procedure.

5. Close-up
Subtask 28-25-00-410-094-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) FOR [94QM] (VALVE-WATER DRAIN, L CTR TK)
(a) Close access door 195BB.
(3) FOR [95QM] (VALVE-WATER DRAIN, R CTR TK)
(a) Close access door 196BB.

Subtask 28-25-00-860-098-A

B. Aircraft Maintenance Configuration
(1) Remove the CONTAINER 50 L(15 USGAL).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3) To discard the drained fuel, refer to your local regulations.
(4) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).
(5) Remove the access platform(s).
(6) Remove the WARNING NOTICE(S).
(7) Remove the SAFETY BARRIERS.

Subtask 28-25-00-942-092-A

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

[Rev.10 from 2021] 2026.04.02 06:17:35 UTC