APU Flashcards
1
Q
What is the maximum altitude you can use APU for air conditioning?
A
15000
2
Q
Can the apu bleed be used for engine or wing deice?
A
No
3
Q
What is max operating altitude for apu electrical?
A
33000ft
4
Q
What is the maximum altitude for engine air start using APU?
A
21000 feet?
5
Q
How long do you have to wait to use electrical or pneumatic?
A
After 95% + 3 seconds.
6
Q
What happens when you push the emergency stop?
A
Closes fuel valve. Doesn’t allow cool down period.
7
Q
What is the indication of APU fire?
A
Aural warning, EICAS MESSAGE, Apu fire light, red bar on emergency stop.
8
Q
Who makes the Apu?
A
Sundstrand APS 2300
9
Q
What are the power parameters of the APU?
A
40KVA, 115 volt 400hz
10
Q
What max altitude can you start the APU?
A
30000 ft
