SDR HALA0700555

Service difficulty report · Unknown · Boeing 76733A

Difficulty date: December 27, 2007
Submitted: December 28, 2007
Operation: Air carrier
Aircraft: N581HA
Make and model: Boeing 76733A
Aircraft serial: 28141
Aircraft time: 22,425 hours, 4,346 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Unknown
Condition: Unknown
Location: Apu
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

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

What was found

ETOPS SIGNIFICANT SYSTEM, "APU FAULT" APU WILL NOT START. T/S PER FIM 49-11-00/101 FIG 103, ECU BITE SHOWED "START ABORTED" AND LRU FAULT "AC START CIRCUIT" APU STARTED NORMALLY SEVERAL TIMES AND ALL TESTS CHECK GOOD PER FIM 49-11-00, "APU FAULT" CLEARED AND NO OTHER FAULTS NOTED. OK FOR SERVICE.

More about the Boeing 767-33A