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‐ The crew stops the operation.
‐ Both inner fuel tank low level sensor on one side become dry.
‐ The Fuel Control and Monitoring System (FCMS) stops the operation at a fuel content level preset
on the FMGS MCDU.
‐ The combined inner tank fuel quantity is less than 10 000 kg (22 000 lb).
Note: The standby pumps continue to run, as long as both JETTISON pushbuttons are selected
ON.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - JETTISON
A330/A340 FLEET DSC-28-10-120 P 3/6
FCOM 19 AUG 10
ECAM INDICATION
Applicable to:
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - JETTISON
A330/A340 FLEET DSC-28-10-120 P 4/6
FCOM 19 AUG 10
ECAM INDICATION
Applicable to: ,
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - JETTISON
A330/A340 FLEET DSC-28-10-120 P 5/6
FCOM 19 AUG 10
SCHEMATIC
Applicable to:
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - JETTISON
A330/A340 FLEET DSC-28-10-120 P 6/6
FCOM 19 AUG 10
SCHEMATIC
Applicable to: ,
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - FUEL RECIRCULATION SYSTEM
A330/A340 FLEET DSC-28-10-130 P 1/2
FCOM 19 AUG 10
FUEL RECIRCULATION SYSTEM
Applicable to:
The inner fuel tanks supply ‐ fuel to the four engines.
‐ Some of this fuel is tapped from the high pressure fuel line of each engine. It goes through the
Integrated Drive Generator (IDG) heat exchanger, where it absorbs heat, and continues to the
inner fuel tank, via the fuel return valve.
‐ Fuel recirculation for IDG cooling moves this heated fuel, from the fuel return valve, back to the
inner fuel tank. This operation ensures IDG cooling during high temperatures (or at low rates of
engine fuel burn).
‐ The FADEC controls the fuel return valves, based on signals sent by the FCMC (Refer to
DSC-70-40-10 GENERAL)
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
DESCRIPTION - FUEL RECIRCULATION SYSTEM
Intentionally left blank
A330/A340 FLEET DSC-28-10-130 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 1/38
FCOM 19 AUG 10
OVERHEAD PANEL
Applicable to:
(1) L (or R) INR TANK 1 (2) (3) (4) 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) INR TANK STBY 1 (2) (3) (4) pushbutton
On : STBY 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.
(3) L (or R) CTR TANK pushbutton
On : The CTR tank pump runs permanently . Appropriate valves control the transfer.
The pump stops automatically, when the tank is empty.
OFF : The pump is off.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 2/38
FCOM 19 AUG 10
FAULT lt : The amber light and the ECAM caution come on, when :
The ‐ delivery pressure drops, or
‐ Or, the trim pipe ISOL valve is failed open.
‐ Or, a manual transfer from the CTR tank is required (failure of automatic
transfer) and both INR tank quantities are above 17 000 kg (37 520 lb).
‐ Or, one outer or INR inlet valve is failed open and both INR tank quantities are
above 17 000 kg (37 520 lb).
Is inhibited when off is selected.
(4) T. TANK MODE pushbutton
AUTO : The FCMC controls the CG.
FWD : Initiates a manual forward transfer to the CTR tank, by opening :
‐ The trim tank ISOL valve,
‐ The auxiliary forward transfer valve,
And by closing :
‐ The trim pipe ISOL valve,
‐ The aft transfer valves.
And, by operating the trim tank forward transfer pump.
CTR 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.
(5) 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 :
　
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