Service difficulty report · Power Supply · Boeing 777223

Difficulty date
March 30, 2021
Submitted
April 3, 2021
Operation
Air carrier
Aircraft
N783AN
Make and model
Boeing 777223
Aircraft serial
30004
Aircraft time
82,543 hours, 9,970 cycles
Part
Power Supply
Part number
D71702001
Part serial
55736
Condition
Inoperative
Location
Emergency Lights
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: L4 EMERGENCY BATTERY PACK M33407 WILL NOT CHARGE. REPLACED POWER SUPPLY IAW AMM 33-51-06, OPS CHECK GOOD.