Service difficulty report · Power Supply · Boeing 747451

Difficulty date
May 14, 2010
Submitted
May 17, 2010
Operation
Air carrier
Aircraft
N664US
Make and model
Boeing 747451
Aircraft serial
23819
Aircraft time
88,389 hours, 11,134 cycles
Engine
Pwa PW4056
Part
Power Supply
Condition
Inoperative
Location
Emergency Lights
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 LAYOVER CHECK, MX FOUND THE LT EXTERIOR EMERGENCY LIGHTS (POSITION 3 & 4) INOPERATIVE. MX REPLACED THE POWER SUPPLY AND BATTERY. OPS CHECK WAS GOOD.