APU Flashcards
1
Q
How many consecutive APU start attempts
A
After three consecutive APU start attempts, the flight crew must wait 60 min before a new start attempt.
2
Q
During refuel/defuel procedures, APU starts, or shutdowns are permitted with what restrictions.
A
If the APU failed to start or following an automatic APU shutdown, do not start the APU.
If a fuel spill occurs, perform a normal APU shutdown.
3
Q
APU - Max altitude to assist engine start.
A
20 000 ft
4
Q
APU - Max altitude for air conditioning and pressurization (single-pack operation).
A
22 500 ft
5
Q
APU - Max altitude for air conditioning and pressurization (dual pack operation).
A
15 000 ft
6
Q
Use of APU bleed air for wing anti-ice is not permitted. T or F
A
True
