Service difficulty report · Power Supply · Boeing 777222

Difficulty date
February 1, 2024
Submitted
February 7, 2024
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
105,181 hours, 14,166 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Emergency Lights
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
O

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

What was found

EMERGENCY LIGHTS OPERATIONAL CHECK {B777-33-3-7030} - DOOR 3 LEFT EXTERIOR EMERGENCY LIGHT INOP NEED MORE GROUND TIME TO WORK THE PROBLEM MEL 3351N REJECTING DAYLIGHT OPS ONLY RELAMPED NO HELP, NEED DOOR 3 LEFT EXTERNAL EMERGENCY LIGHT UPDATE PART INFO. ASSEMBLY P/N: S283W704-17 REF WIRING DIAGRAM 33-51-44 REMOVED AND REPLACED POWER SUPPLY M33405 ABOVE DOOR 3L PER AMM 33-51-06-960-803, OPS CHECK OK PER AMM 33-51-00-710-801.