APU Limitations Flashcards
1
Q
How long must crew wait for a new start attempt in case of an aborted APU start or APU Shutdown?
A
60 secs between 3 start attempts followed by a 60 min wait
2
Q
APU Max N1 ?
A
106%
3
Q
APU Max N2 ?
A
102%
4
Q
Max APU start EGT on ground ?
A
700 degs
5
Q
Max APU start EGT in flight ?
A
800 degs
6
Q
Max APU indicated EGT ?
A
900 degs
7
Q
Max APU EGT running ?
A
900 degs for 30 secs / 950 degs for 0.5 secs
8
Q
APU operational altitude and speed ?
A
22 500 ft whilst below 0.56 M
9
Q
What must you not use when you need APU Bleed air ?
A
WAI and HP ground air
