SDR ATC0388

Service difficulty report · Light · Boeing 7374Y0

Difficulty date
February 3, 2004
Submitted
April 20, 2004
Operation
Air carrier
Aircraft
N239CT
Make and model
Boeing 7374Y0
Aircraft serial
23980
Engine
Ge CFM56*
Part
Light
Part number
L8161516
Condition
Wrong Part
Location
Lavatory A
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

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

What was found

ROUTINE C CHECK INSPECTION AND FUNCTIONS ON LAVATORY A LIGHTING THE DOME LIGHT ASSY WAS FOUND DETACHED FROM MODULE CEILING. ALL 3 SECURING LUGS HAD DETACHED FROM SUPPORT RING DUE TO SEVERE OVERHEATING OF DOME LIGHT AND SURROUNDING AREA. ON INVESTIGATION IT WAS FOUND THAT LAMP, PN GE 1691 WAS FITTED IAW LABEL OF BODY OF DOME LIGHT BUT IPC 33-26-00 REQUIRES A PN 303AF TO BE FITTED. PN 1691 LAMPS ARE RATED 28V 0.61 AMPS AND PN 303 AF LAMP AT 28V 0.31 AMPS. FURTHER INVESTIGATION FOUND INCORRECT RATED LAMPS FITTED TO BOTH REAR LAVATORIES. LAVATORY A LIGHT ASSY, REPLACED. LAMPS REPLACED IN REAR LAV. NO DAMAGE FOUND ON ADJACENT WIRE BUNDLE AND SOUND PROOFING. SMOKE DETECTOR PLUG REPLACED. (EA35200401324)