Auxiliary Power Unit Flashcards
1
Q
What controls the APU?
A
The FADEC
2
Q
What would the APU shut-down for automatically on the ground?
A
Any malfunction, but fire after 10 seconds.
3
Q
What would the APU shut-down automatically in the air?
A
Anything not heat related.
4
Q
What is the minimum battery voltage for attempting an APU start?
A
19 volts.
5
Q
What power sources may be used to start the APU?
A
GPU, battery 2 alone or battery 2 assist by a generator.
6
Q
What will occur if a fire is detected in the APU while on ground?
A
APU will automatically shutdown after 10 seconds detection.
7
Q
What should be done if APU fail to start during refueling?
A
Wait until refueling is completed before another APU start attempt.
