Service difficulty report · Power Supply · Boeing 777223

Difficulty date
September 16, 2025
Submitted
September 23, 2025
Operation
Air carrier
Aircraft
N758AN
Make and model
Boeing 777223
Aircraft serial
32637
Aircraft time
91,468 hours, 11,738 cycles
Part
Power Supply
Part number
D717020001
Condition
No Test
Location
Zone 200
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: EMERGENCY LIGHT BATTERY PACK FAILED CAPACITY CHECK AT DOOR 1L. MAINTENANCE REPLACED POWER SUPPLY OF EMERGENCY LIGHT ON DOOR 1L IAW AMM 33-51-06.