Service difficulty report · Power Supply · Boeing 747422

Difficulty date
September 5, 2005
Submitted
September 13, 2005
Operation
Air carrier
Aircraft
N179UA
Make and model
Boeing 747422
Aircraft serial
25158
Aircraft time
60,759 hours, 7,658 cycles
Engine
Pwa PW4056
Part
Power Supply
Part number
20131A
Condition
Inoperative
Location
Emergency Light
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

EMERG LTS INOP 2 EA ASSY AFT LT OVERWING. REPLACED POWER SUPPLY