Service difficulty report · Chiller · Boeing 777222

Difficulty date
July 25, 2006
Submitted
August 1, 2006
Operation
Air carrier
Aircraft
N786UA
Make and model
Boeing 777222
Aircraft serial
26938
Aircraft time
40,786 hours, 6,221 cycles
Engine
Pwa PW4090
Part
Chiller
Condition
Failed
Location
Galley
Stage of operation
UK
How discovered
O
Nature of condition
B
Precautionary procedure
H

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

What was found

BURNING ELECTRICAL SMELL COMING FROM ECONOMY GALLEY AFTER CHILLER C51 FAILED. PERFORMED DIAGNOSTIC, OPERATING CHILLER. OPERATED FOR 10 MINUTES THEN STOPPED RUNNING BUT RUN LT STILL ON. REPLACED CHILLER PER MM 25-33-93 PG 401 AND OPS NORMAL WITH NO BURNING SMELL. SUSPECT EXCESSIVE CURRENT-DRAW OPERATION WITH FLR OF INTERNAL CIRCUIT BREAKER & RESET FUNCTION.