Service difficulty report · Power Supply · Boeing 777223

Difficulty date
December 31, 2021
Submitted
January 4, 2022
Operation
Air carrier
Aircraft
N789AN
Make and model
Boeing 777223
Aircraft serial
30252
Aircraft time
81,438 hours, 10,555 cycles
Part
Power Supply
Part number
S283W6032
Part serial
5828
Condition
Inoperative
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: EMERGENCY LIGHT POWER SUPPLY WOULD NOT TEST AT 1L DOOR AFT POSITION. REPLACED POWER SUPPLY WITH SERVICEABLE UNIT IAW AMM 33-51-06, OPS CHECK GOOD.