Fuel Flashcards
What pumps are contained in each wing tank
- Ejector fuel pump.
- Wing AC electric fuel pump.
- Three scavenge ejector pumps.
- DC electric fuel pump (right tank only).
Where are the fuel tanks located
2 tanks. One in each wing
What is the ejector pump
The primary pump that uses motive flow to create fuel pressure
To where do the AC pumps provide fuel
- Onside engine during engine starts.
- Cross side engine during crossfeed operations.
- APU, when engine is not running.
It is also a backup pump in the event of ejector pump failure
What powers AC PUMP 1
AC BUS 1
What powers AC PUMP 2
AC ESS BUS
How many scavenge pumps are there per wing and what do they do
3, provide constant supply to the collector tanks
Where is the DC fuel pump located and what does it do
The right wing tank. Provides fuel for APU and engine start when AC power or the AC fuel pump is not available
What powers the DC fuel pump
DC ESS BUS 2
How much fuel will be left in the wing tank when the LOW FUEL warmin message is displayed
660 lbs
how many MLIs are installed on each wing and how are they labeled
3 on each wing. LH1,2,3 for Left Hand 1etc. 1 is inboard, 3 is outboard
when is Fuel Used indication automatically reset by the FMS
upon 1st engine start
what is the max wing fuel imbalance
800 lbs
