Service difficulty report · Power Supply · Boeing 747422

Difficulty date
August 13, 2009
Submitted
August 17, 2009
Operation
Air carrier
Aircraft
N178UA
Make and model
Boeing 747422
Aircraft serial
24385
Aircraft time
79,809 hours, 9,747 cycles
Engine
Pwa PW4056
Part
Power Supply
Part number
582240
Condition
Inoperative
Location
Emergency Lights
Stage of operation
IN
How discovered
V
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

EMERGENCY EXIT LIGHTS INOP LEFT OVERWING EXTERIOR AFT 2 LIGHT ASSY'S. REPLACED M7919 POWER SUPPLY.