Service difficulty report · Power Supply · Boeing 757222

Difficulty date
March 6, 2010
Submitted
March 10, 2010
Operation
Air carrier
Aircraft
N578UA
Make and model
Boeing 757222
Aircraft serial
26694
Aircraft time
57,106 hours, 20,007 cycles
Engine
Pwa PW2037
Part
Power Supply
Part number
20121
Condition
Faulty
Location
Emergency Light
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EXTERIOR EMERGENCY LIGHT AT DOOR 2L WILL NOT ILLUMINATE. REPLACED POWER SUPPLY M733. RANG OUT WIRING FROM POWER SUPPLY CONNECTOR D72, PIN 9 TO LIGHT L35 =P. WIRE CHECKED GOOD. L35 =G TO GROUND CHECKED OK. REPLACED LAMP AND OPERATION CHECK OKAY.