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View Full Version : ?? B737NG APU Auto-shutdown ??


HalinTexas
6th Aug 2012, 08:30
Can someone answer:

The APU has an auto-shutdown feature for fire. Why does it not automatically fire the extinguishers?

spannersatcx
6th Aug 2012, 09:41
Apu's are either monitored or unmonitored, by the a/c systems, if it's unmonitored then the a/c should not be left unattended so in case of a fire YOU fire the bottle.

NSEU
7th Aug 2012, 00:21
Some aircraft APUs auto-extinguish on the ground, but not in the air. In the air, the pilots are monitoring the aircraft. On the ground, there may be no one in attendance.

Rgds
NSEU