Service difficulty report · Battery Pack · Boeing 777222

Difficulty date
November 28, 2025
Submitted
December 2, 2025
Operation
Air carrier
Aircraft
N216UA
Make and model
Boeing 777222
Aircraft serial
30549
Aircraft time
96,976 hours, 11,627 cycles
Part
Battery Pack
Part number
AD071701100
Condition
Discharged
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

L1 DOOR EMERGENCY BATTERY PACK M33093 HAD CAPACITY LOW. THE BATTERY PACK M33093 WAS REPLACED AND TESTED NORMAL IAW AMM 33-51-06.