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If fuel transfers to/from only one inner tank due to a fuel imbalance, only one arrow is
displayed.
(10) APU LP valve indication
APU􀀃(White)􀀃▹􀀃(White)􀀃:􀀃Valve􀀃is􀀃closed.􀀃
APU􀀃(White)􀀃▹􀀃(Green)􀀃:􀀃Fuel􀀃provided􀀃to􀀃the􀀃APU.􀀃
APU􀀃(Amber)􀀃▹􀀃(Amber)􀀃:􀀃Failed􀀃open.􀀃
APU (amber) : Failed closed.
(11) Jettison indication
No display : No jettison.
JETTISON (Green) : Jettison normally active.
JETTISON (Amber) : Abnormal jettison (valve abnormally open).
JETTISON (Amber) : Valve abnormally closed.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 31/38
FCOM 19 AUG 10
(12) X-Feed valve
Cross line - Green : Valve is closed.
In line - Green : Valve is open.
Cross line - Amber : Valve is abnormally closed.
In line - Amber : Valve is abnormally open.
Transit - Amber : Valve is in transit.
Applicable to:
(1) Engine LP valves indication
In line - Green : Valve is open.
In line - Amber : Valve is abnormally open.
Cross line - Amber : Valve is closed.
Transit - Amber : Valve is in transit.
(2) Engine feed pumps indication
In line - Green : Pump is running.
In line - Amber : Pump abnormally running.
Cross line - Amber : Pump not running.
"LO" - Amber : Pump pressure is low. Pump is on.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 32/38
FCOM 19 AUG 10
(3) Standby engine feed pumps indication
Are identical to the normal pump, except for pump not running.
Cross line - Green : Pump not running.
Cross line - Amber : Pump abnormally not running.
(4) Outer to inner transfer indication
▹􀀃Green􀀃:􀀃Normal􀀃transfer􀀃(auto).􀀃
▹􀀃Green􀀃:􀀃Manual􀀃transfer.􀀃
▹􀀃Amber􀀃:􀀃Abnormal􀀃transfer.􀀃
No display : No transfer.
(5) Trim tank isolation indication
This valve represents the trim tank isolation valve and the trim tank inlet valve.
In line - Green : One valve is open.
Cross line - Green : Both valves are closed.
In line - Amber : One valve is abnormally open.
Cross line - Amber : Both valves are abnormally closed.
(6) Trim to inner transfer indication
No display : No transfer.
Green􀀃:􀀃Manual􀀃forward􀀃(↑)􀀃transfer.􀀃
Green : Normal aft ( ) or forward ( ) transfer (auto).
Amber : Abnormal aft ( ) or forward ( ) transfer.
If fuel transfers to/from only one inner tank due to a fuel imbalance, (inner tanks are
imbalanced by more than 500 kg/1 100 lb) only one arrow is displayed in green.
(7) APU LP valve indication
APU􀀃(White)􀀃▹􀀃(White)􀀃:􀀃Valve􀀃is􀀃closed.􀀃
APU􀀃(White)􀀃▹􀀃(Green)􀀃:􀀃Fuel􀀃provided􀀃to􀀃the􀀃APU.􀀃
APU􀀃(Amber)􀀃▹􀀃
(Amber)
: Failed open.
APU (amber) : Failed closed.
(8) X-Feed valve
Cross line - Green : Valve is closed.
In line - Green : Valve is open.
Cross line - Amber : Valve is abnormally closed.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FUEL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-28-20 P 33/38
FCOM 19 AUG 10
In line - Amber : Valve is abnormally open.
Transit - Amber : Valve is in transit.
Applicable to:
(1) Engine LP valves indication
In line - Green : Valve is open.
In line - Amber : Valve is abnormally open.
Cross line - Amber : Valve is closed.
Transit - Amber : Valve is in transit.
(2) Engine feed pumps indication
In line - Green : Pump is running.
In line - Amber : Pump abnormally running.
Cross line - Amber : Pump not running.
"LO" - Amber : Pump pressure is low. Pump is on.
(3) Standby engine feed pumps indication
Are identical to the normal pump, except for pump not running.
Cross line - Green : Pump not running.
Cross line - Amber : Pump abnormally not running.
(4) Outer to inner transfer indication
▹􀀃Green􀀃:􀀃Normal􀀃transfer􀀃(auto).􀀃
▹􀀃Green􀀃:􀀃Manual􀀃transfer.􀀃
　
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