Fuel

Question 0

Fuel temps

Answer 0

-40c (amber)
Fuel feed less than 5c (amber)
Measured in left tank and fuel line to each engine

Question 1

AUTO XFLOW INHIBIT msg

Answer 1

The fuel automatic crossflow is inhibited

Question 2

Fuel valve check

Answer 2

Both pumps off

L&R amber messages and R low fuel pressure message

Question 3

Boost pumps powered?

Answer 3

Left pump DC battery bus for starting w/o ext power

Rich pump DC bus2

Question 4

What is the purpose of the boost pumps

Answer 4

Transfer from the collector to the engine
Backup to the main ejectors
Provide fuel pressure during engine start

Question 5

How does APU get fuel

Answer 5

X-Flow APU pump gets fuel from both tanks if not working then it uses the negative gravity relief valve