Service difficulty report · Power Supply · Boeing 777223

Difficulty date
July 6, 2023
Submitted
July 12, 2023
Operation
Air carrier
Aircraft
N757AN
Make and model
Boeing 777223
Aircraft serial
32636
Aircraft time
81,885 hours, 10,611 cycles
Part
Power Supply
Part number
D71702001
Condition
Failed
Location
Zone 200 - Fuse
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

AIRCRAFT IN BASE MAINTENANCE: OVERHEARD AISLE EMERGENCY EXIT SIGNS AT DOOR 3R FAILED OPERATIONAL TEST. REPLACED EMERGENCY LIGHTS POWER SUPPLY M33404 PER AMM 33-51-06. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.