Service difficulty report · Battery Pack · Boeing 777222

Difficulty date
December 10, 2025
Submitted
December 11, 2025
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
112,904 hours, 15,030 cycles
Part
Battery Pack
Part number
ADD71701100
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

R2 DOOR EMERGENCY BATTERY PACK M33097 CAPACITY CHECK FAILED. THE BATTERY PACK M33097 WAS REPLACED AND TEST CARRIED OUT WITH NORMAL RESULTS IAW AMM 33-51-06.