Limitation APU Flashcards
1
Q
How many APU start can you do ?
A
3 then wait for 60min
2
Q
APU, what the max N speed ?
A
107%
3
Q
APU, what is the max EGT for APU start, and APU running ?
A
1090°C for start
675°C for running
4
Q
What is the maximum altitude at which the APU can be restarted on battery only (EMER ELEC) ?
A
25000ft
5
Q
What is the limit altitude for the APU to provide bleed air and electrical power ? Engine restart ?
A
22500ft for single pack, 15000ft for dual pack
20000ft Eng restart
Elect only up to 41000ft
