Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
August 19, 2020
Submitted
August 21, 2020
Operation
Air carrier
Aircraft
N780AN
Make and model
Boeing 777223
Aircraft serial
29956
Aircraft time
78,276 hours, 9,851 cycles
Part
Battery Pack
Part number
D71702001
Part serial
50582
Condition
Discharged
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 WAS GROUNDED: L3 DOOR EMERGENCY POWER SUPPLY (M33406) BATTERY PACK DISCHARGED. REMOVED AND REPLACED L3 DOOR EMERGENCY LIGHT BATTERY PACK PER AMM 22-51-06.