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‐ trim tank ISOL valve
‐ trim tank inlet valve
‐ auxiliary forward transfer valve
‐ trim pipe ISOL valve.
The trim tank forward transfer pump stops.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 3/38
FCOM 19 AUG 10
OPEN : The valves used during a manual forward transfer, and the trim tank inlet valve
open. The valves remain open, until 3 min after the trim tank is low, to allow
drainage of the transfer pipe.
Note: APU supply is not possible, when the pipe is drained.
(6) X FEED 1 (4) pushbutton
AUTO : Both valves automatically open :
‐ In electrical emergency configuration
‐ Or, during jettison operation.
ON : The valve opens.
OPEN lt : The green light comes on when the valve is fully open.
(7) X FEED 2 (3) pushbutton
AUTO : Both valves automatically open :
‐ In electrical emergency configuration,
‐ During jettison operation,
‐ During aft transfer from the INR tanks.
ON : The valve opens.
OPEN lt : The green light comes on when the valve is fully open.
(8) CTR TANK XFR pb
AUTO : The FCMC controls the CTR to INR tank transfer.
MAN : Initiates the CTR to INR tank transfer :
‐ By opening the INR tank inlet valves,
To avoid INR tank overflow, the CTR tank pumps may be selected off.
FAULT lt : The amber light and the ECAM caution come on when :
‐ The INR tank low level is reached and the CTR tank is not empty or,
‐ The FCMC is unable to carry out the transfer to the INR tanks.
(9) OUTR TANK XFR pushbutton (guarded)
AUTO : The FCMC controls the outer to INR tank transfer.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 4/38
FCOM 19 AUG 10
ON : Initiates the outer to INR tank transfer by opening the :
‐ Outer transfer valves
‐ Outer inlet valves
‐ INR inlet valves.
FAULT lt : The amber light, and the ECAM caution come on, when :
‐ The INR tank low level is reached and the CTR tank is not empty, or
‐ The FCMC is unable to carry out the transfer to the INR tanks.
‐ The FUEL LO TEMP warning is triggered.
OVERHEAD PANEL
Applicable to:
(1) L (or R) 1 (2) pushbutton
On : Pump is on.
OFF : Pump is off.
FAULT lt : The amber light and the ECAM caution come on, when the delivered pressure
drops. It is inhibited when OFF is selected.
(2) L (or R) STBY pushbutton
On : Standby pump runs when associated main pump is failed or off.
OFF : Pump is off.
FAULT lt : The amber light and the ECAM caution come on, when the delivered pressure
drops. It is inhibited when OFF is selected, or the main pump is running.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 5/38
FCOM 19 AUG 10
(3) T. TANK MODE pushbutton
AUTO : The FCMC controls the CG.
FWD : Initiates a manual forward transfer to the INR tanks, by opening :
‐ The trim tank ISOL valve,
‐ The auxiliary forward transfer valve,
‐ The trim pipe ISOL valve,
‐ The inner inlet valves
And by closing :
‐ The aft transfer valves.
And, by operating the trim tank forward transfer pump.
Inner tank overflow must be manually prevented.
FAULT lt : The amber light and the ECAM caution come on when :
‐ The FMGS detects an excess aft CG, based on the THS position (independent
of fuel quantity), or
‐ The FCMC is unable to carry out the forward transfer.
‐ The FUEL LO TEMP warning is triggered.
(4) T. TANK FEED sel
AUTO : Stops the forward transfer when the trim tank is at low level, to maintain the
transfer line full.
ISOL : The transfer line is isolated as the following valves close :
‐ trim tank ISOL valve
‐ trim tank inlet valve
‐ auxiliary forward transfer valve
‐ trim pipe isolation valve.
The trim tank forward transfer pump stops.
OPEN : The valves used during a manual forward transfer, and the trim tank inlet valve
open. The valves remain open, until 3 min after the trim tank is low, to allow
drainage of the transfer pipe.
Note: APU supply is not possible, when the pipe is drained.
(5) OUTR TANK XFR pushbutton (guarded)
AUTO : The FCMC controls the outer to INR tank transfer.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 6/38
FCOM 19 AUG 10
ON : Initiates the outer to INR tank transfer by opening the :
‐ Outer transfer valves,
‐ Outer inlet valves,
　
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