Service difficulty report · Power Supply · Boeing 747451

Difficulty date
December 12, 2010
Submitted
December 13, 2010
Operation
Air carrier
Aircraft
N670US
Make and model
Boeing 747451
Aircraft serial
24225
Aircraft time
88,643 hours, 10,836 cycles
Engine
Pwa PW4056
Part
Power Supply
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

DURING A LINE CHECK, MX FOUND THE UPPER DECK LT EMERGENCY EXIT LIGHT INOPERATIVE. MX REPLACED THE POWER SUPPLY. OPS CHECK WAS GOOD.