Service difficulty report · Power Supply · Boeing 747451

Difficulty date
September 7, 2009
Submitted
September 9, 2009
Operation
Air carrier
Aircraft
N670US
Make and model
Boeing 747451
Aircraft serial
24225
Aircraft time
84,037 hours, 10,268 cycles
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

DURING AN OVERNIGHT LINE CHECK THE OVERWING SLIDE ILLUMINATION LIGHT ON THE RIGHT SIDE OF THE AIRCRAFT WAS FOUND TO BE INOPERATIVE. MAINTENANCE FOUND THE ASSOCIATED POWER SUPPLY TO BE DEFECTIVE AND REPLACED IT. SYSTEM OPERATION WAS NORMAL AFTER THE POWER SUPPLY WAS REPLACED.