Service difficulty report · Power Supply · Boeing 747451

Difficulty date
March 14, 2011
Submitted
March 16, 2011
Operation
Air carrier
Aircraft
N664US
Make and model
Boeing 747451
Aircraft serial
23819
Aircraft time
91,311 hours, 11,506 cycles
Part
Power Supply
Condition
Inoperative
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

DURING A MAINTENANCE VISIT, THE EXTERIOR EMERGENCY LIGHTS AFT OF THE INBOARD FLAP RIGHT WING WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE 3R DOOR POWER SUPPLY. SYSTEM OPERATION WAS NORMAL AFTER THE POWER SUPPLY WAS REPLACED.