Allied Signal GTCP331-500 APU

Allied Signal GTCP331-500 APU

Postby f4dj79 on Fri Feb 27, 2009 11:25 pm

This is great unit very few troubles. Every once in awhile we do some stupid things. Do not forget to hook up the APU battery on the 747 it will result in a full start up with the apu door being closed. The APU will suck the air out and collapse the ducting and FOD out the APU. We tried twice just to make sure it would do the same damage.
Occasionally the apu will get a hiccup and shut down, the APUC (aux. power unit controller) will get a latched message that will not clear and then cause all kinds of troubles.
Most of the failures come from the APUC getting a latched message that will not clear.
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