Fuel System Flashcards
What are the fuel quantities for pressure refueling TOTAL
19,594 lbs
What are the fuel quantities for pressure refueling MAINS
7,492 lbs
What are the fuel quantities for pressure refueling CENTER
4,610 lbs
What are the fuel quantities for gravity refueling Total
14,810 lbs
What are the fuel quantities for gravity refueling Mains
7,405 lbs
How is the fuel moved from the center tank to the main tanks
transfer ejectors
How is the fuel moved from the main tanks to the collector tanks
scavenge ejectors
gravity line used as a backup
How is the fuel moved from the collector tanks to the engine driven high pressure fuel pump
main ejectors
backed up by boost pumps
What is the function of the electric boost pumps
To provide initial fuel for engine start and to back-up the main ejectors
What is the flight deck indication of a high pressure fuel pump failure
Engine flameout
What is the maximum fuel imbalance
300 lbs for takeoff,
800 lbs for all other phases
When will the fuel system automatically begin transferring fuel
200 lb fuel imbalance
When are the boost pumps automatically energized
Low pressure from the main ejectors
if the pumps are armed
Where is the high pressure fuel pump located
N2 accessory gearbox
Where is bulk fuel temperature taken
right main tank
