Service difficulty report · Compressor · Boeing 747422

Difficulty date
October 5, 2012
Submitted
October 11, 2012
Operation
Air carrier
Aircraft
N127UA
Make and model
Boeing 747422
Aircraft serial
28813
Aircraft time
52,681 hours, 6,180 cycles
Engine
Pwa PW4056
Part
Compressor
Part number
288239
Part serial
75
Condition
Failed
Location
Potable Water
Stage of operation
IN
How discovered
O
Nature of condition
B
Precautionary procedure
K

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

What was found

BURNING SMELL EVIDENT AROUND ZONE 480-600 LWR FWD CARGO AREA. ALL MEC AREA ELECTRICAL AND RACKING INSPECTED NIL DEFECTS FOUND SMELL TRACED TO FWD CARGO FUME BARRIER ON INSPECTION OF AREA POTABLE WATER COMPRESSOR FOUND FAILED & OVERHEATING COMPRESSOR DECATIVATED MEL 3810L APPLIED. REPLACED POTABLE WATER AIR COMPRESSOR, OPS CHECKED OKAY, NO LEAKS NOTED.