APU Flashcards
1
Q
What is the power source for the APU boost pump?
A
24-28V DC (battery)
2
Q
What two systems does the APU indirectly supply?
A
Hydraulics and Generators
3
Q
What is the Nr range to avoid during APU operation?
A
94-96%
4
Q
What is the maximum number of APU start attempts permitted in one hour?
A
3
5
Q
What precaution is to be taken for when unauthorized personnel will be in the cockpit?
A
Pop the APU circuit breaker (right EFAB)
6
Q
What is the only APU warning?
A
APU fire
7
Q
What is the only APU caution?
A
APU on
8
Q
What does the APU PTO provide?
A
Coupling and decoupling of the APU to the XMSN
9
Q
Where does the APU receive fuel from?
A
AFT fuel cell
10
Q
APU oil level is found where?
A
The sight glass
11
Q
When is APU bleed air provided?
A
Once APU reaches 95%
