Service difficulty report · Ballast · Boeing 747422

Difficulty date
December 19, 2011
Submitted
December 22, 2011
Operation
Air carrier
Aircraft
N171UA
Make and model
Boeing 747422
Aircraft serial
24322
Aircraft time
83,970 hours, 10,000 cycles
Engine
Pwa PW4056
Part
Ballast
Condition
Faulty
Location
Cabin Lights
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

G1 GALLEY LIGHT REPORTED FLASHING. AREA INSPECTED. NO ODOR OR EVIDENCE OF ARCING. INSPECTED BEHIND CIRCUIT BREAKER PANEL. NO ODOR OR EVIDENCE OF ARCING. RELAMPED LIGHT ASSY. NO HELP. CIRCUIT BREAKER PULLED AND COLLARED. ALL OTHER COMPONENTS OPS NORMAL. . REPLACED BALLAST M002, OPS CHECKED OKAY.