Pressure Refuel with Automatic Control

TASK 12-11-28-650-003-A
Pressure Refuel with Automatic Control

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.

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

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
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 12-11-28-650-007-A	Use of Magnetic Level Indicators (MLI)
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 28-25-00-650-001-A	Pressure Defuel
TASK 28-25-00-869-001-A	Fuel Transfer
Refuel Safety Area ** ON A/C NOT FOR ALL
Refuel/Defuel Coupling ** ON A/C NOT FOR ALL
Refuel Safety Area ** ON A/C NOT FOR ALL
Refuel/Defuel Coupling ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU/801VU ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU and 801VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU/801VU ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU and 801VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL
Refuel/Defuel Control Panel 800VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 12-11-28-941-050-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) You must obey the refuel/defuel safety procedures (Ref. AMM TASK 12-11-28-650-001) (Ref. AMM TASK 12-11-28-650-002).
(2) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE adjacent to the refuel coupling 40QM.
(3) Make sure that the chocks do not touch the tires. The weight of the fuel can lower the aircraft and cause the chocks to catch.
(4) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 12-11-28-941-050-B ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) You must obey the refuel/defuel safety precautions (Ref. AMM TASK 12-11-28-650-001) (Ref. AMM TASK 12-11-28-650-002).

CAUTION: DO NOT REFUEL OR DEFUEL THROUGH THE TWO REFUEL/DEFUEL COUPLINGS AT THE SAME TIME. THIS IS TO PREVENT PRESSURE DIFFERENCE PROBLEMS.

(2) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE adjacent to the applicable refuel coupling 100QM(40QM).
(3) Make sure that the chocks do not touch the tires. The weight of the fuel can lower the aircraft and cause the chocks to catch.
(4) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 12-11-28-281-051-A

B. Do a Check for Water in the Fuel Tanker
(1) Make sure that a fuel sampling for water contamination check is done to the fuel in the fuel tanker/pump unit.

Subtask 12-11-28-860-050-C ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration

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.

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.

(1) Obey the local regulations for grounding (earthing) the aircraft. If you must ground (earth) the aircraft:

Ground (earth) the fuel tanker and the aircraft correctly (Ref. AMM TASK 12-34-24-869-001).

NOTE: You must bond the fuel tanker to the aircraft. Obey the local regulations for grounding (earthing).

(2) Bond the fuel tanker to the aircraft (Ref. AMM TASK 12-34-24-869-001).
(3) Remove the refuel coupling cap (41QM).
(4) Make sure that the coupling of the fuel supply-hose is clean, then connect it to the aircraft refuel coupling.
(5) If you have external power available, energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 12-11-28-860-050-D ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration

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.

(1) Obey the local regulations for grounding (earthing) the aircraft. If you must ground (earth) the aircraft:

Ground (earth) the fuel tanker and the aircraft correctly (Ref. AMM TASK 12-34-24-869-001).

NOTE: You must bond the fuel tanker to the aircraft. Obey the local regulations for grounding (earthing).

(2) Bond the fuel tanker to the aircraft (Ref. AMM TASK 12-34-24-869-001).
(3) Remove the applicable refuel coupling cap 101QM(41QM).
(4) Make sure that the coupling of the fuel supply-hose is clean, then connect it to the aircraft refuel coupling.
(5) If you have external power available, energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 12-11-28-010-051-A ** ON A/C NOT FOR ALL

D. Get Access

Refuel/Defuel Control Panel 800VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL

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

Refuel/Defuel Control Panel 800VU and 801VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL

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

Refuel/Defuel Control Panel 800VU and 801VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL

(1) Open access door 192MB.

NOTE: After the refuel control-panel access-door is opened, if you use refuel battery power only:

It is not possible to start the refuel sequence for approximately 35 to 40 seconds.
This is because the Fuel Quantity Indication Computer (FQIC) and FLSS BITE sequences operate first.
Airbus recommends you to not to keep the door open longer than necessary because the battery power decreases.

Subtask 12-11-28-010-051-B ** ON A/C NOT FOR ALL

D. Get Access

Refuel/Defuel Control Panel 800VU, Preselector 5QT and Indicator 6QT ** ON A/C NOT FOR ALL

(1) Open access door 622KB:

Put the doorstay into the doorstay bracket to hold access door 622KB in position.

NOTE: After the refuel control panel access door has opened, if you use refuel battery power only:

It is not possible to start the refuel sequence until after approximately 35 to 40 seconds.
This is because the FQIC and FLSS BITE sequences operate first.
Do not keep the door open longer than necessary because the battery can discharge.

Subtask 12-11-28-860-051-A ** ON A/C NOT FOR ALL

E. Aircraft Maintenance Configuration
(1) If you do not have ground power available:

WARNING: WHEN YOU REFUEL THE AIRCRAFT WITH BATTERY POWER, IT IS NOT ALWAYS POSSIBLE TO REFUEL TO FULL CAPACITY. THIS IS BECAUSE THE INTERCELL TRANSFER VALVES ARE NOT ALWAYS IN THE CORRECT POSITION.

(a) On the refuel/defuel control panel (800VU), put the BATT POWER switch to the ON position and release.

NOTE: The HOT BUSS 701PP is energized for ten minutes only (this is to prevent discharge of the aircraft batteries), unless you put the MODE SELECT switch (on the refuel/defuel panel) to REFUEL.

Subtask 12-11-28-860-051-B ** ON A/C NOT FOR ALL

E. Aircraft Maintenance Configuration
(1) Make sure that you do not remove the power from the FQIC until the refuel procedure is complete.
(2) If you do not have ground power available, on the refuel/defuel control panel (800VU), put the BATT POWER switch to the ON position and release.

NOTE: The HOT BUSS 701PP is energized for ten minutes only (this is to prevent discharge of the aircraft batteries), unless you put the MODE SELECT switch (on the refuel/defuel panel) to REFUEL.

Subtask 12-11-28-740-050-A ** ON A/C NOT FOR ALL

F. Test of the Refuel Panel 800VU
(1) Do this test:

ACTION	RESULT
1.On the panel 800VU:	On the panel 800VU:
put the TEST switch to the LTS position and hold it there	the HI LVL lights and the DEFUEL/XFR OPEN lights are on and the CKPT and END lights come on the FUEL QTY, PRESELECTED and ACTUAL displays show all 8's.
release the TEST switch	the lights go back to their initial condition the FUEL QTY, PRESELECTED and ACTUAL displays go back to their initial condition
put the TEST switch to the HIGH position and hold it there	the HI LVL lights change condition. If they were on, they will go off. If they were off, they will come on
release the TEST switch.	the HI LVL lights go back to their initial condition.

Subtask 12-11-28-740-050-C ** ON A/C NOT FOR ALL

F. Test of Refuel Panel 800VU and 801VU

NOTE: If the ACT is not installed, the ACT HI LVL light will not come on during this test.

(1) Do this test:

ACTION	RESULT
1.On panel 800VU:	On panel 800VU and 801VU:
Set the TEST switch to the LTS position and hold it there.	The HI LVL lights and the DEFUEL/XFR OPEN lights are on and the CKPT and END lights come on. The FUEL QTY, PRESELECTED and ACTUAL displays show all 8's.
Release the TEST switch.	The lights go back to their initial condition. The FUEL QTY, PRESELECTED and ACTUAL displays go back to their initial condition.
Set the TEST switch to the HIGH position and hold it there.	The HI LVL lights change condition. If they were on, they will go off. If they were off, they will come on.
Release the TEST switch.	The HI LVL lights go back to their initial condition.

Subtask 12-11-28-740-050-D ** ON A/C NOT FOR ALL

F. Test of the Refuel Panel 800VU and 801VU

NOTE: The HI LVL lights of the ACTs that are not installed will not come on during this test.

(1) Do this test:

ACTION	RESULT
1.On the panel 800VU:	On the panel 800VU and 801VU:
put the TEST switch to the LTS position and hold it there	the HI LVL lights and the DEFUEL/XFR OPEN lights are on and the CKPT and END lights come on the FUEL QTY, PRESELECTED and ACTUAL displays show all 8's
release the TEST switch	the lights go back to their initial condition the FUEL QTY, PRESELECTED and ACTUAL displays go back to their initial condition
put the TEST switch to the HIGH position and hold it there	the HI LVL lights change condition. If they were on, they will go off. If they were off, they will come on
release the TEST switch.	the HI LVL lights go back to their initial condition.

4. Procedure

WARNING: MAKE SURE THAT YOU DO THE REFUEL PANEL TEST BEFORE THE REFUEL PROCEDURE OR BEFORE THE FUEL TANK IS 70 PERCENT FULL. DEFECTIVE HIGH-LEVEL SENSORS CAN CAUSE FUEL TO SPILL OVERBOARD.

Subtask 12-11-28-650-074-B ** ON A/C NOT FOR ALL

WARNING: BEFORE YOU DO THIS REFUEL 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.

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.

CAUTION: BEFORE YOU START THE WING TANK PUMPS, MAKE SURE THAT:

THERE IS A MINIMUM OF 750 KG (1653 LB) OF FUEL IN THE APPLICABLE WING TANKS
THE MODE SEL PUSHBUTTON SWITCH 48QA IS IN THE AUTO POSITION.

THIS WILL PREVENT DRY RUNNING AND SUBSEQUENT DAMAGE TO THE WING AND CENTER TANK PUMPS.

A. Pressure Refuel with Automatic Control

NOTE: If it becomes necessary, defuel (Ref. AMM TASK 28-25-00-650-001) or transfer fuel (Ref. AMM TASK 28-25-00-869-001).

(1) To prevent a fuel spill, on the panel 40VU, make sure that:

X FEED P/BSW 4QE is released out (OFF)
MODE SEL P/BSW 48QA is in the AUTO position
CTR TK PUMP 1 and 2 P/BSW's are released out (OFF).

(2) On the refuel/defuel control panel 800VU:

make sure that the REFUEL VALVES switches are in the NORM position.

(3) On the preselector 5QT:

Put the PRESELECTED rocker switch to the INC position and hold it there
Make sure that the number on the PRESELECTED display increases
When the PRESELECTED display shows the necessary fuel load, release the PRESELECTED rocker switch.

(4) On the refuel/defuel control panel 800VU, put the MODE SELECT switch to the REFUEL position.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(5) Before refuel, record actual fuel quantity indicated on preselector 5QT and fuel tanker. When refuel is complete do a discrepancy check.
(6) Start the pump on the fuel tanker/pump unit.
(7) On the preselector 5QT:
(a) Make sure that the numbers on the ACTUAL display increases.
(8) On the fuel quantity indicator 6QT:
(a) Make sure that the numbers on the FUEL QTY displays increase.
(9) When the refuel operation is complete, make sure that:
(a) On the preselector 5QT:

END light comes on
The numbers on the ACTUAL and the PRESELECTED displays are stable and the same +/- 100 kg (220.5 lb).

(b) On the fuel quantity indicator 6QT:

The FUEL QTY display for each tank show that the fuel is divided correctly between the tanks.

If the tanks are full, the HI LVL lights come on.

NOTE: Refer to the fuel tables for the maximum capacity of each tank and for the total fuel capacity (Ref. AMM TASK 12-11-28-650-007).

(10) Stop the pump on the fuel tanker/pump-unit.
(11) On the refuel/defuel control panel 800VU:

Put the MODE SELECT switch to the OFF and guarded position.

Subtask 12-11-28-650-074-D ** ON A/C NOT FOR ALL

A. Pressure Refuel with Automatic Control

CAUTION: BEFORE YOU DO THIS REFUEL PROCEDURE, MAKE SURE THAT:

ALL THE FUEL PUMPS ARE OFF, OR
THE FUEL PUMPS ARE ON WITH THE MODE SEL PUSHBUTTON SWITCH 4QL IN THE AUTO POSITION.

IF THE FUEL PUMPS ARE ON AND THE MODE SEL PUSHBUTTON SWITCH 4QL IS NOT IN THE AUTO POSITION, THERE IS A RISK THAT FUEL WILL SPILL.

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.

CAUTION: BEFORE YOU START THE WING TANK PUMPS, MAKE SURE THAT THERE IS A MINIMUM OF 750 KG (1653 LB) OF FUEL IN THE APPLICABLE WING TANKS. THIS WILL PREVENT DRY RUNNING AND SUBSEQUENT DAMAGE TO THE FUEL PUMPS.

(1) If it is necessary, defuel (Ref. AMM TASK 28-25-00-650-001) or move fuel (Ref. AMM TASK 28-25-00-869-001).
(2) To prevent a fuel spill, on panel 40VU, make sure that:

X FEED P/BSW 4QE is released out (OFF)
MODE SEL P/BSW 4QL is in the AUTO position
CTR TK L and R XFR P/BSW's are released out (OFF).

(3) On refuel/defuel control panel 800VU:

Make sure that the REFUEL VALVES switches are in the NORM position.

(4) On preselector 5QT:

Set the PRESELECTED rocker switch to the INC position and hold it there
Make sure that the number on the PRESELECTED display increases
When the PRESELECTED display shows the necessary fuel load, release the PRESELECTED rocker switch.

(5) On refuel/defuel control panel 800VU, set the MODE SELECT switch to the REFUEL position.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(6) Before refuel, record actual fuel quantity indicated on preselector 5QT and fuel tanker. When refuel is complete do a check.
(7) Start the pump on the fuel tanker/pump unit.
(8) On preselector 5QT:
(a) Make sure that the numbers on the ACTUAL display increases.
(9) On the fuel quantity indicator 6QT:
(a) Make sure that the numbers on the FUEL QTY displays increase.
(10) When the refuel operation is complete, make sure that:
(a) On preselector 5QT:

The END light comes on
The numbers on the ACTUAL and the PRESELECTED displays are stable and the same +/- 100 kg (220.5 lb).

(b) On fuel quantity indicator 6QT:

The FUEL QTY display for each tank shows that the fuel is divided correctly between the tanks.

If the tanks are full, the HI LVL lights come on
Refer to the fuel tables for the maximum capacity of each tank and for the total fuel capacity (Ref. AMM TASK 12-11-28-650-007).

(11) Stop the pump on the fuel tanker/pump-unit.
(12) If you have a problem, to disconnect the fuel supply hose, then do the step that follows:
(a) On refuel/defuel control panel 800VU:

Set a refuel valve switch to OPEN then to NORM.

NOTE: You can use a tank refuel valve switch which does not show a HI LVL indication.

(13) On refuel/defuel control panel 800VU:

Put the MODE SELECT switch to the OFF and guarded position.

Subtask 12-11-28-650-074-G ** ON A/C NOT FOR ALL

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.

CAUTION: BEFORE YOU DO THIS REFUEL PROCEDURE, MAKE SURE THAT:

ALL THE FUEL PUMPS ARE OFF, OR
THE FUEL PUMPS ARE ON WITH THE MODE SEL PUSHBUTTON SWITCH 4QL IN THE AUTO POSITION.

IF THE FUEL PUMPS ARE ON AND THE MODE SEL PUSHBUTTON SWITCH 4QL IS NOT IN THE AUTO POSITION, THERE IS A RISK THAT FUEL WILL SPILL.

A. Pressure Refuel with Automatic Control

NOTE: If it becomes necessary, defuel (Ref. AMM TASK 28-25-00-650-001) or transfer fuel (Ref. AMM TASK 28-25-00-869-001).

(1) To prevent a fuel spill, on the panel 40VU, make sure that:

the X FEED P/BSW 4QE is released out (OFF)
the MODE SEL P/BSW 4QL is in the AUTO position
the CTR TK L and R XFR P/BSW's are released out (OFF).

(2) On the refuel/defuel control panel 800VU:

make sure that the REFUEL VALVES switches are in the NORM position.

(3) On the preselector 5QT:

put the PRESELECTED rocker switch to the INC position and hold it there
make sure that the number on the PRESELECTED display increases
when the PRESELECTED display shows the necessary fuel load, release the PRESELECTED rocker switch.

(4) On the refuel/defuel control panel 800VU, put the MODE SELECT switch to the REFUEL position.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

the END light comes on
the numbers on the ACTUAL and the PRESELECTED displays are stable and the same +/- 100 kg (220.5 lb).

(b) On the fuel quantity indicator 6QT:

the FUEL QTY display for each tank shows that the fuel is divided correctly between the tanks.

if the tanks are full, the HI LVL lights come on.

NOTE: Refer to the fuel tables for the maximum capacity of each tank and for the total fuel capacity (Ref. AMM TASK 12-11-28-650-007).

(10) Stop the pump on the fuel tanker/pump-unit.
(11) If you have had a problem, to disconnect the fuel supply hose, then do the step that follows:
(a) On the refuel/defuel control panel 800VU:

put a refuel valve switch to OPEN then to NORM.

NOTE: You should use a tank refuel valve switch which does not show a HI LVL indication.

(12) On the refuel/defuel control panel 800VU:

put the MODE SELECT switch to the OFF and guarded position.

Subtask 12-11-28-650-089-A ** ON A/C NOT FOR ALL

CAUTION: BEFORE YOU DO THIS REFUEL PROCEDURE, MAKE SURE THAT:

ALL THE FUEL PUMPS ARE OFF, OR
THE FUEL PUMPS ARE ON WITH THE MODE SEL PUSHBUTTON SWITCH 4QL IN THE AUTO POSITION.

IF THE FUEL PUMPS ARE ON AND THE MODE SEL PUSHBUTTON SWITCH 4QL IS NOT IN THE AUTO POSITION, THERE IS A RISK THAT FUEL WILL SPILL.

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.

B. Pressure Refuel with Automatic Control (ACT Installed)

NOTE: If it becomes necessary, defuel (Ref. AMM TASK 28-25-00-650-001) or transfer fuel (Ref. AMM TASK 28-25-00-869-001).

(1) To prevent a fuel spill, on the panel 40VU, make sure that:

X FEED P/BSW 4QE is released out (OFF)
MODE SEL P/BSW 4QL is in the AUTO position
CTR TK L and R XFR P/BSW's are released out (OFF).

(2) On the refuel/defuel control panel 800VU and 801VU:

Make sure that the REFUEL VALVES switches are in the NORM position.

(3) On the preselector 5QT:

Put the PRESELECTED rocker switch to the INC position and hold it there
Make sure that the number on the PRESELECTED display increases
When the PRESELECTED display shows the necessary fuel load, release the PRESELECTED rocker switch.

(4) On the refuel/defuel control panel 800VU, put the MODE SELECT switch to the REFUEL position.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

The END light comes on
The numbers on the ACTUAL and the PRESELECTED displays are stable and the same +/- 100 kg (220.5 lb).

(b) On the fuel quantity indicator 6QT:

The FUEL QTY display for each tank shows that the fuel is divided correctly between the tanks.

If the tanks are full, the HI LVL lights come on.

NOTE: Refer to the fuel tables for the maximum capacity of each tank and for the total fuel capacity (Ref. AMM TASK 12-11-28-650-007).

(10) Stop the pump on the fuel tanker/pump-unit.
(11) If you have had a problem, to disconnect the fuel supply hose, then do the step that follows:
(a) On the refuel/defuel control panel 800VU:

Put a refuel valve switch to OPEN then to NORM.

NOTE: You should use a tank refuel valve switch which does not show a HI LVL indication.

(12) On the refuel/defuel control panel 800VU:

Put the MODE SELECT switch to the OFF and guarded position.

Subtask 12-11-28-650-084-D ** ON A/C NOT FOR ALL

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.

CAUTION: BEFORE YOU DO THIS REFUEL PROCEDURE, MAKE SURE THAT:

ALL THE FUEL PUMPS ARE OFF, OR
THE FUEL PUMPS ARE ON WITH THE MODE SEL PUSHBUTTON SWITCH 4QL IN THE AUTO POSITION.

IF THE FUEL PUMPS ARE ON AND THE MODE SEL PUSHBUTTON SWITCH 4QL IS NOT IN THE AUTO POSITION, THERE IS A RISK THAT FUEL WILL SPILL.

C. Pressure Refuel with Automatic Control (If ACT(s) are Installed)

NOTE: If it necessary, defuel or transfer fuel (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

(1) To prevent a fuel spill, on panel 40VU, make sure that:

X FEED P/BSW 4QE is released out (OFF)
MODE SEL P/BSW 4QL is in the AUTO position
The CTR TK L and R XFR P/BSW's are released out (OFF).

(2) On refuel/defuel control panels 800VU and 801VU:

Make sure that the REFUEL VALVES switches are in the NORM position.

(3) On preselector 5QT:

Set the PRESELECTED rocker switch to the INC position and hold it there.
Make sure that the number on the PRESELECTED display increases.
When the PRESELECTED display shows the necessary fuel load, release the PRESELECTED rocker switch.

(4) On refuel/defuel control panel 800VU, set the MODE SELECT switch to the REFUEL position.

CAUTION: DO NOT LET THE REFUEL PRESSURE BE MORE THAN THE MAXIMUM PRESSURE OF 50 PSI (3.45 BARS). IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE AIRCRAFT OR EQUIPMENT CAN OCCUR.

(5) Before refuel, record actual fuel quantity indicated on preselector 5QT and fuel tanker:

When refuel is complete, do a fuel quantity check.

(6) Start the pump on the fuel tanker/pump unit.
(7) On preselector 5QT:
(a) Make sure that the numbers on the ACTUAL display increases.
(8) On fuel quantity indicator 6QT:
(a) Make sure that the numbers on the FUEL QTY display increases.
(9) When the refuel operation is complete, make sure that:
(a) On preselector 5QT:

The END light comes on
The numbers on the ACTUAL and the PRESELECTED displays are stable and the same +/- 100 kg (220.5 lb).

(b) On fuel quantity indicator 6QT:

The FUEL QTY display for each tank show that the fuel is divided correctly between the tanks.

If the tanks are full, the HI LVL lights come on.

(d) Refer to the fuel tables for the maximum capacity of each tank and for the total fuel capacity (Ref. AMM TASK 12-11-28-650-007).
(10) Stop the pump on the fuel tanker/pump-unit.
(11) On refuel/defuel control panel 800VU:

Set the MODE SELECT switch to the OFF and guarded position.

5. Close-up
Subtask 12-11-28-860-052-A ** ON A/C NOT FOR ALL

A. Refuel on Batteries
(1) If you refueled the aircraft with battery power, on the refuel/defuel control panel (800VU), release the BATT POWER switch from the ON position. The switch will go back to the NORM position.
(2) Make an entry in the aircraft technical log, to check the fuel configuration before the subsequent flight.

Subtask 12-11-28-860-052-B ** ON A/C NOT FOR ALL

Subtask 12-11-28-410-050-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 12-11-28-410-050-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) Remove the doorstay from the doorstay bracket and close the access door 622KB.

Subtask 12-11-28-862-050-B

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

Subtask 12-11-28-869-067-A ** ON A/C NOT FOR ALL

D. Aircraft Configuration
(1) Disconnect the coupling of the fuel supply-hose from the aircraft refuel/defuel coupling.

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

(2) Install the refuel coupling cap 41QM.

Subtask 12-11-28-869-067-B ** ON A/C NOT FOR ALL

D. Aircraft Configuration
(1) Disconnect the coupling of the fuel supply-hose from the aircraft refuel/defuel coupling.

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

(2) Install the applicable refuel coupling cap 101QM(41QM).

[Rev.10 from 2021] 2026.03.31 22:54:33 UTC