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