Service difficulty report · Socket · Boeing 747422

Difficulty date
February 28, 2014
Submitted
March 4, 2014
Operation
Air carrier
Aircraft
N178UA
Make and model
Boeing 747422
Aircraft serial
24385
Aircraft time
97,204 hours, 11,606 cycles
Engine
Pwa PW4056
Part
Socket
Condition
Damaged
Location
Cabin
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

ELECTRICAL BURNING SMELL AT ROW 16 UPPER DECK. FOUND MELTED SOCKET AT SIDE WALL LIGHT 15A. REMOVED FLUORESCENT LIGHT BULB TO ISOLATE EVIDENCE OF SMELL, INSPECTED AREA IAW FIM 21-00-810, NO MORE SMELL NOTED. REPLACED BURNED SOCKET & RELAMPED, LIGHTS INOPERATIVE. BURNED SOCKET PROBABLY TOOK OUT THE BALLAST. RELAMPED BOTH SOCKETS, CYCLED CBS L17 & G18 UPPER DECK AUXILIARY & REVEAL LIGHTS, OPERATIONS CHECKED GOOD.