The APU a cannot operate without AC power.
The APU will operate without a fuel pump.
The left main tank has a DC fuel pump to operate the APU.
The center tank has a DC fuel pump to operate the APU.
Yes. The left forwarded PRESS light is extinguished indicating the APU is on and automically using pump.
Yes. The left forwarded forward PRESS light is extinguished indicating the DC pump is on.
No. the right forward PRESS light should also be extinguished/
No. All of the PRESS lights should be extinguished when the fuel pumps are commanded off.
Crossfeed may be necessary to prevent thrust decay.
Both left main fuel tank pumps are operating at a lower pressure.
The left engine is using suction feeds from the left main fuel tank.
The message can not display with fuel in the center tank.
Left and right main tank fuel pumps and the center tank override pumps.
Left and right main tank jettison pumps only.
Left and right main tank jettison pumps and the center tank jettison/ override pumps
All fuel pumps are used for fuel jettison.
Yes, one pump is electrically load shed and the message is inhibited.
Yes, center tank fuel is not used during engine start and the message is inhibited.
No, the EICAS message is never inhibited.
No, the EICAS message will be displayed after a short sensing delay.
Main tank pump pressure prevents any further fuel transfer.
A scavenge pump automatically transfers any remaining center tank fuel to the main tanks.
The center tank fuel valves automatically close.
The pumps can be turned on again to empty the center tank.
Either crossfeed valve and both pumps in the low main tank.
Both crossfeed valves and both pumps in the main tank.
Either crossfeed valve and both pumps in the high main tank.
Both crossfeed valves and both pumps in the low main tank.
Center tank fuel feeds both engines until empty then the main tanks feeds then respective engines.
Tank to engine feed is selected by configuring the fuel pumps and crossing valves.
Left and right main tank to the respective engine until reaching 11,500 pounds or 5, 200 kilograms, then the center tank feeds the engines until empty, then the remaining tank fuel feeds.
Left and right main tank to the respective engine and the center tank resupplies the main tank fuel.
When the fuel quantity of either L or R main tanks exceed the fuel quantity of the center tank.
When the center tank contains fuel and the fuel pump switch is OFF.
When the center tank is empty and the pump switch is OFF.
When the center tank left fuel pump output pressure is low.
Check valves prevent use of the main tank fuel before using center tank fuel.
The center tank fuel pumps have higher output pressure than the main tank fuel pumps.
The center tank fuel pumps are selected ON before the main tank fuel pumps.
The main tank pumps are in STANDBY until the EICAS message FUEL LOW CENTER is displayed.
Fuel jettison is possible from all tanks.
The jettison nozzles can not open on the ground even when the NOZZLE switches are in the ON position.
Jettison automatically stops when a value just above the TO REMAIN quantity is reached.
Jettison time remaining is not available.
Crossfeed valve not is the selected position.
The crossfeed valve is selected off.
Fuel quantity is 1000 pounds or 500 kgs low in one main tank and need to be balanced.
The crossfeed valve is selected on.
It automatically begins fuel jettison.
Initializes fuel-to-remain at the MLW quantity.
The jettison nozzle valves are selected open in flight.
Turns on both main tank jettison pumps and opens both center tank jettison isolation valves.
Automatically begins fuel jettison
Initialize fuel-to-remain at the MLW quantity.
The jettison nozzle valves are selected open in flight.
Turns on both main tank jettison pumps and opens both center tank jettison isolation valves.
Automatically selects the MLW fuel-to-remain quantity.
Initiates the fuel-to-remain manual setting to the current total fuel quantity.
Changes the fuel-to-remain quantity selection from MWL to MAN.
Automatically selects the MWL fuel-to-remain equal to ZFW.
TAT (total air temperature)
SAT (static air temperature)
Fuel freeze temperature
Fuel temperature
A solid white fuel imbalance pointer is displayed beside the tank with the low quantity.
A flashing amber fuel imbalance pointer is displayed beside the tank with the low quantity.
A solid amber fuel imbalance pointer is displayed beside the tank with the low quantity.
The fuel quantity indicator in the low tank turns amber.
Fuel temperature is displayed on the PFD (primary flight display)
Fuel temperature display turns amber when approaching the fuel freeze point entered in the FMS CDU.
Fuel temperature display turns amber during a fuel overheat condition.
The fuel remain defaults to a quantity that will leave the airplane at the maximum landing weight when arriving at the destination airport on the route page 1.
JETTISON COMPLETE flashes automatically at the end of the sequence, reminding the pilot to turn off the pumps to end the cycle
Fuel jettison occurs from the center tank first.
The fuel remain defaults to a fuel quantity that will leave the airplane at maximum landing weight when jettison is complete.
Each fuel tank contains two DC-powered fuel pumps.
Two pumps are required to supply sufficient fuel to operate one engine under all conditions
A single pump can supply sufficient fuel to operate one engine under all conditions.
The center tank fuel pumps turn off automatically when the low pressure light illuminates during the fuel burn sequence.
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