Operational Check to Ensure that Both Center Tank Pumps Feed for 2 Minutes After Engine Start

TASK 28-21-00-710-005-A
Operational Check to Ensure that Both Center Tank Pumps Feed for 2 Minutes After Engine Start

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.

ZONE: 210

1. Reason for the Job
Refer to the MPD TASK: 282100-04
OPERATIONAL CHECK TO ENSURE THAT BOTH CENTER TANK PUMPS FEED FOR 2 MINUTES AFTER ENGINE START
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	1	WARNING NOTICE(S)
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-003-A	Pressure Refuel with Automatic Control
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 27-00-00-080-002-A	Removal of the Flap/Slat Control-Lever Locking Tool (98D27803000000)
TASK 27-00-00-480-002-A	Installation of the Flap/Slat Control-Lever Locking Tool (98D27803000000)
TASK 27-80-00-866-004-A	Extending the Slats on the Ground
TASK 27-80-00-866-005-A	Retracting the Slats on the Ground
TASK 28-25-00-650-001-A	Pressure Defuel
TASK 28-25-00-869-001-A	Fuel Transfer
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 71-00-00-710-001-A	Dry Motoring Check
TASK 71-00-00-710-001-B	Dry Motoring Check
TASK 73-25-34-000-040-A	Removal of the Engine Interface Unit (EIU)
TASK 73-25-34-000-040-B	Removal of the Engine Interface Unit (EIU)
TASK 73-25-34-400-040-A	Installation of the Engine Interface Unit (EIU)
TASK 73-25-34-400-040-B	Installation of the Engine Interface Unit (EIU)
Fuel Control Panel 40VU

3. Job Set-up
Subtask 28-21-00-941-075-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) Put a WARNING NOTICE(S) in position to tell persons not to operate the flight controls.

Subtask 28-21-00-860-059-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001).
(3) On the ECAM control panel (CP), push (in) the FUEL push icon switch.
(4) Refuel (Ref. AMM TASK 12-11-28-650-003) or transfer fuel (Ref. AMM TASK 28-25-00-869-001) to get the fuel configuration that follows:
(a) FOR [84QM] (CANISTER-FUEL PUMP, L CTR TK)

the center tank contains more than 500 kg (1102 lb) of fuel
the LEFT outer fuel cell is full of fuel
the LEFT wing tank contains between 750 kg (1653 lb) and 5000 kg (11023 lb) of fuel.

(b) FOR [85QM] (CANISTER-FUEL PUMP, R CTR TK)

the center tank contains more than 500 kg (1102 lb) of fuel
the RIGHT outer fuel cell is full of fuel
the RIGHT wing tank contains between 750 kg (1653 lb) and 5000 kg (11023 lb) of fuel.

(5) Extend the slats to more than 16 degrees (Ref. AMM TASK 27-80-00-866-004).
(6) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the slat/flap control lever (Ref. AMM TASK 27-00-00-480-002).

Subtask 28-21-00-865-052-A ** ON A/C NOT FOR ALL

C. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FUEL/FQI/CHAN/1	1QT	A13
121VU	FUEL/FQI/CHAN/2	2QT	M27
121VU	FUEL/CTR TK/PUMP2 SPLY	30QA	P26
121VU	FUEL/CTR TK/PUMP1 SPLY	29QA	P23
121VU	FUEL/CTR TK/AUTO/CTL	47QA	R27
121VU	FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND	32QA	R26
121VU	FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND	31QA	R25

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 28-21-00-710-051-A ** ON A/C NOT FOR ALL

A. Operational Test of Main Fuel-Pump System to Ensure Both Center Tank Pumps Feed for 2 Minutes After Engine Start (Method 1)

NOTE: To do this method of the test you must remove the Engine Interface Unit (EIU)

NOTE: During this test the ECAM can show unwanted indications, which you can ignore.

ACTION	RESULT
1.On the panel 40VU:	On the panel 40VU:
make sure the MODE SEL P/BSW is released (out)	the MODE SEL P/BSW MAN light is on
push (in) the CTR TK PUMP 1 and the CTR TK PUMP 2 P/BSW	the CTR TK PUMP 1 and the CTR TK PUMP 2 OFF lights go off.
	On the ECAM lower DU: the CTR display shows the pumps on and normal (green in-line).
push (in) the MODE SEL P/BSW.	On the panel 40VU:
	the MODE SEL P/BSW MAN light goes off the MODE SEL P/BSW FAULT light comes on.
	On the ECAM lower DU: the CTR display shows the pumps off (green cross-line).
2.On the panel 85VU: remove the Engine Interface Unit (EIU) (Ref. AMM TASK 73-25-34-000-040)
Using a portable 28 volt DC Power Supply, apply a +28 volt DC current at the rack connector AB pin 1C	On the ECAM lower DU: the CTR display shows the pumps on and normal (green in-line)
remove the +28 volt DC current from the rack connector AB pin 1C.	approximately 2 mins after the +28 volt DC current is removed the ECAM lower DU shows the CTR pumps off (green cross-line).
3.Fully retract the slats (Ref. AMM TASK 27-80-00-866-005).	When the slats are retracted to less than 16 deg.
	On the ECAM lower DU: the CTR display shows the pumps on and normal (green in-line).
4.On the panel 85VU: install the EIU (Ref. AMM TASK 73-25-34-400-040).
5.On the panel 40VU:	On the panel 40VU:
release (out) the MODE SEL P/BSW	the MODE SEL P/BSW FAULT light goes off the MODE SEL P/BSW MAN light comes on
release (out) the CTR TK PUMP 1 and the CTR TK PUMP 2 P/BSW.	the CTR TK PUMP 1 and the CTR TK PUMP 2 P/BSW OFF lights come on.
	On the ECAM lower DU: the CTR display shows the pumps off (amber cross-line).

Subtask 28-21-00-710-070-C ** ON A/C NOT FOR ALL

B. Operational Test of the Main Fuel-Pump System to Ensure Both Center Tank Pumps Feed for 2 Minutes After Engine Start (Method 2)

NOTE: To do this method of the test you must dry motor the engines.

NOTE: During this test the ECAM may show unwanted indications that you can ignore.

ACTION	RESULT
1.On the panel 40VU:	On the panel 40VU:
make sure the MODE SEL P/BSW is released (out)	the MODE SEL P/BSW MAN light is on
push (in) the CTR TK PUMP 1 and the CTR TK PUMP 2 P/BSW	the CTR TK PUMP 1 and the CTR TK PUMP 2 OFF lights go off.
	On the ECAM lower DU: the CTR display shows the pumps on and normal (green in-line).
push (in) the MODE SEL P/BSW.	On the panel 40VU:
	the MODE SEL P/BSW MAN light goes off the MODE SEL P/BSW FAULT light comes on.
	On the ECAM lower DU: the CTR display shows the pumps off (green cross-line).
2.Dry motor the engines (Ref. AMM TASK 71-00-00-710-001). During the Dry Motoring Check monitor the ECAM lower-DU fuel-page for the indications that follow:

	On the ECAM lower DU: when you push in the ENG/MAN START/1(2) the CTR display shows the pumps on and normal (green in-line) approximately 2 mins after you release out the ENG/MAN START/1(2) the ECAM lower DU shows the CTR pumps off (green cross-line).
3.Fully retract the slats (Ref. AMM TASK 27-80-00-866-005).	When the slats are retracted to less than 16 deg.
	On the ECAM lower DU: the CTR display shows the pumps on and normal (green in-line).
4.On the panel 40VU:	On the panel 40VU:
release (out) the MODE SEL P/BSW	the MODE SEL P/BSW FAULT light goes off the MODE SEL P/BSW MAN light comes on
release (out) the CTR TK PUMP 1 and the CTR TK PUMP 2 P/BSW.	the CTR TK PUMP 1 and the CTR TK PUMP 2 P/BSW OFF lights come on.
	On the ECAM lower DU: the CTR display shows the pumps off (amber cross-line).

5. Close-up
Subtask 28-21-00-860-060-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the slat/flap control lever (Ref. AMM TASK 27-00-00-080-002).
(3) Make sure that the slats are fully retracted (Ref. AMM TASK 27-80-00-866-005).
(4) Refuel, defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).
(5) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(6) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(7) Put the aircraft back to its initial configuration.

Subtask 28-21-00-942-079-A ** ON A/C NOT FOR ALL

B. 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] 2026.04.02 06:17:23 UTC