DB's SY 737 APU Flashcards
0
Q
APU LOW OIL PRESSURE light - ON
A
Low oil pressure
• Normal during start
• Will cause auto-shutdown
1
Q
APU MAINT light - ON
A
APU maintenance problem exists
• APU may be operated
• Light is disarmed when APU switch is off
2
Q
APU FAULT Light - ON
A
A malfunction exists causing auto-shutdown
3
Q
APU OVERSPEED Light - ON
- During normal shutdown
- Any other time
A
- Overspeed shutdown feature has failed a self-test
2. APU RPM limit exceeded resulting in a auto-shutdown
4
Q
APU bleed air supplies air for how many PACKS:
- Ground
- Air
A
- Both
2. One
5
Q
How long until shutdown when APU switch is moved to OFF?
A
60 secs
6
Q
Where does APU draw fuel from?
A
No. 1 tank via AC pump, DC pump or suction feed
7
Q
How long should the APU be running before using it as a bleed source?
A
1 minute
