Re: B727 APU (was:MD-80: Lawn Dart or Efficient Design?)

From:         "David G. Davidson" <gerhard@onramp.net>
Organization: http://rampages.onramp.net/~gerhard/tristar
Date:         05 Nov 96 04:13:57 
References:   1 2
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>However,if the APU is not shut down prior to takeoff, when the gear is >retracted a Wheel Well Fire warning light and bell could result.

The 727 APU is not certified for airborne use and it should
automatically shutdown once the air/ground sw goes to air mode. Normal
ops is to shut it down once the engines have been started.