APU Flashcards
1
Q
When does the EICAS memo message APU RUNNING display?
A
When APU selector is on and APU N1 exceeds 95%
2
Q
Is electrical power available from the APU in flight?
A
NO
3
Q
Can the APU be operated in flight?
A
Yes
- When left running for takeoff it can be operated in flight up to 20,000’.
4
Q
How long should you wait before turning battery switch OFF after the APU selector is rotated to OFF, and why?
A
2 minutes
Allows a complete shut down sequence with fire detection capability.
