Service difficulty report · Power Supply · Boeing 747422

Difficulty date
December 23, 2002
Submitted
December 31, 2002
Operation
Air carrier
Aircraft
N109UA
Make and model
Boeing 747422
Aircraft serial
26906
Aircraft time
17,571 hours, 2,170 cycles
Engine
Pwa PW4056
Part
Power Supply
Condition
Discharged
Location
Cabin
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

TWO LEFT UPPER OVERWING ESCAPE LIGHTS ARE INOPERATIVE. POWER SUPPLY MODULE REPLACED.