Service difficulty report · Apu · Boeing 747422

Difficulty date
June 17, 2007
Submitted
June 20, 2007
Operation
Air carrier
Aircraft
N175UA
Make and model
Boeing 747422
Aircraft serial
24382
Aircraft time
66,362 hours, 7,567 cycles
Engine
Pwa PW4056
Part
Apu
Condition
Faulty
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

CREW REPORTS APU FLAMED OUT AT DEPARTURE TIME. FIRE CARGO AFT EICAS MSG CAME ON AFTER APU FAILED. [07-27-07] AFTER SEVERAL APU SHUT-DOWNS & ABORTED STARTS, CONDUCTED CICADA CHECK OF INLET SCREEN. CLEANED OFF LOT OFF DEAD BUGS. 10% BLOCKAGED LWR PARTS OF INLET SCREEN. APU OPERATES NORMALLY.