Fuel Flashcards
0
Q
Fuel temps
A
-40c (amber)
Fuel feed less than 5c (amber)
Measured in left tank and fuel line to each engine
1
Q
AUTO XFLOW INHIBIT msg
A
The fuel automatic crossflow is inhibited
2
Q
Fuel valve check
A
Both pumps off
L&R amber messages and R low fuel pressure message
3
Q
Boost pumps powered?
A
Left pump DC battery bus for starting w/o ext power
Rich pump DC bus2
4
Q
What is the purpose of the boost pumps
A
Transfer from the collector to the engine
Backup to the main ejectors
Provide fuel pressure during engine start
5
Q
How does APU get fuel
A
X-Flow APU pump gets fuel from both tanks if not working then it uses the negative gravity relief valve
