Service difficulty report · Apu · Boeing 747422

Difficulty date
October 9, 2013
Submitted
October 10, 2013
Operation
Air carrier
Aircraft
N178UA
Make and model
Boeing 747422
Aircraft serial
24385
Aircraft time
95,767 hours, 11,456 cycles
Engine
Pwa PW4056
Part
Apu
Condition
Shutdown
Location
Apu Bay
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

APU AUTO SHUTDOWN AT GATE WHEN LOAD WAS APPLIED. CMC MESSAGE WAS 49-11-891 APU RENDERED INOPERATIVE.