APU Flashcards
1
Q
Normal EGT
A
400 deg c
2
Q
EGT continuous
A
650 deg c
3
Q
EGT max
A
720 deg c
4
Q
Delay time between APU starts?
A
5 minutes
5
Q
APU start time
A
30 seconds
6
Q
APU on speed time
A
60 seconds
7
Q
APU on speed light
A
95%
8
Q
APU shutdown time.
A
2 minutes with no load.
9
Q
5 reasons why APU will automatically shutdown.
A
No/low battery Overspeed Fire light Low oil pressure/quantity Takeoff
10
Q
When are both APU accumulators required. (Temp)
A
-29 deg c OAT
11
Q
APU accumulator pressure
A
2500 psi if above -18 deg c
3000 psi btw-18 to -40
3500 psi below -40 deg c
