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(5) TRANSF VALVE sw (guarded in CLOSED)
CLOSED : Transfer valves are closed.
OPEN : If the inner tank pumps are on for ground transfer, the aft transfer valves open.
The trim tank inlet valve closes.
(6) APU EMER pushbutton (guarded)
When pressed, it initiates the APU shutdown sequence.
(7) POWER SUPPLY sw (guarded in NORM)
NORM : Refueling / Defueling can be supplied either by external power or with the APU
generator on line.
BAT : Refueling / Defueling is battery-powered.
(8) HIGH LEVEL TEST sw (guarded)
During the test :
‐ Refueling stops.
‐ HI LEVEL and OVERFLOW lights come on, if their circuits are serviceable.
‐ CKPT and END lights come on.
‐ The PRESELECTED and ACTUAL fuel quantity display all 8 s.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 14/38
FCOM 19 AUG 10
If a failure occurs during the high level test :
‐ The END light flashes and remains flashing after completion.
‐ The affected HI LVL light remains on.
(9) REFUEL / DEFUEL VALVES sel (guarded in NORM)
NORM : Refuel / Defuel valves are automatically controlled.
OPEN : Valves open when the MODE SELECT switch is set to the REFUEL or DEFUEL
position. In the REFUEL position, each refuel/defuel valve closes when high
level is detected in the associated tank.
SHUT : Valves close.
(10) MODE SELECT sw (guarded at OFF)
OFF : Refueling system is off.
Refuel valves close.
APU emergency shutdown and high level test remain available.
REFUEL : Refuel valves operate in automatic or manual mode, depending on the REFUEL
/ DEFUEL VALVES switch position.
DEFUEL : Refuel valves are open.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 15/38
FCOM 19 AUG 10
REFUELING CONTROL PANEL
Applicable to:
(1) FUEL QUANTITY indicator
Displays, in kg (or lbs) × 1000 :
‐ The fuel quantity of each tank.
‐ The pre-selected total quantity. At electrical power up (or FCMC reset), the display shows
the ACTUAL value minus 500 kg (1 100 lb). Otherwise, the last pre-selected value is
displayed.
‐ The actual total fuel on board.
‐ The applicable units (kg or lbs).
‐ The CKPT light : Comes on when a BLOCK FUEL value has been entered and confirmed on
the cockpit MCDU.
‐ The END light, which flashes when :
• There is an imbalance greater than 3 000 kg (6 620 lb), after refueling.
• A failure is detected during a high level test.
• Refueling is aborted.
Once refueling is finished, the END light stays on.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 16/38
FCOM 19 AUG 10
(2) HI LVL lt
‐ Comes on blue, when high level is detected (i.e. both high level sensors are wet).
‐ The corresponding refuel valve automatically closes.
(3) OVERFLOW lt
‐ Comes on amber, when the associated vent tank overflow sensor is covered with fuel.
(4) INCREASE / DECREASE preselector rocker sw
‐ Pressing either side of the switch increases or decreases the preselected quantity.
(5) TRANSF VALVE sw (guarded in CLOSED)
CLOSED : Transfer valves are closed.
OPEN : If the inner tank pumps are on for ground transfer, the aft transfer valves open.
The trim tank inlet valve closes.
(6) APU EMER pushbutton (guarded)
When pressed, it initiates the APU shutdown sequence.
(7) POWER SUPPLY sw (guarded in NORM)
NORM : Refueling / Defueling can be supplied either by external power or with the APU
generator on line.
BAT : Refueling / Defueling is battery-powered.
(8) HIGH LEVEL TEST sw (guarded)
During the test :
‐ Refueling stops.
‐ HI LEVEL and OVERFLOW lights come on, if their circuits are serviceable.
‐ CKPT and END lights come on.
‐ The PRESELECTED and ACTUAL fuel quantity display all 8 s.
If a failure occurs during the high level test :
‐ The END light flashes and remains flashing after completion.
‐ The affected HI LVL light remains on.
(9) REFUEL / DEFUEL VALVES sel (guarded in NORM)
NORM : Refuel / Defuel valves are automatically controlled.
OPEN : Valves open when the MODE SELECT switch is set to the REFUEL or DEFUEL
position. In the REFUEL position, each refuel/defuel valve closes when high
level is detected in the associated tank.
SHUT : Valves close.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 17/38
　
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