Service difficulty report · Apu · Boeing 757212

Difficulty date
October 22, 2009
Submitted
October 30, 2009
Operation
Air carrier
Aircraft
N750AT
Make and model
Boeing 757212
Aircraft serial
23126
Aircraft time
70,136 hours, 32,894 cycles
Part
Apu
Part serial
P2769
Condition
Malfunctioned
Location
Apu Bay
Part time
12,222 hours, 16,981 cycles
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

ON PUSHBACK AFTER TURNING OFF PACKS APU SHUTDOWN WITH FAULT LIGHT. RE-SET FAULT, TRIED AGAIN. START WAS NORMAL. BIT APU ECU. CLEARED REVERSE FLOW MESSAGE PER FIM. ETOPS CATEGORY 'E': PROBLEMS WITH SYSTEMS CRITICAL TO ETOPS.