APU Flashcards
What is the APU start cycle?
2 minutes
How many minutes must pass before using bleed?
2 minutes
How many seconds are required for the stop cycle automatic cool down?
60 seconds
Where is fuel suction provided for the APU?
Main wing tank 1
How many packs can the APU power on the ground?
2 packs
How many packs does the APU power in flight?
1 pack
Maximum altitude for bleed and electric power
10000ft
Maximum altitude for bleed OR electrics by the APU
17000ft
Maximum altitude for electric power and start by the APU?
41000ft
How many minutes should pass between unsuccessful APU starts for it to cool?
5 minutes
What conditions will the APU auto shutdown?
LOW OIL Pressure, overspeed, no DC power.