Service difficulty report · Battery · Boeing 777224

Difficulty date
October 6, 2026
Submitted
October 7, 2026
Operation
Air carrier
Aircraft
N78008
Make and model
Boeing 777224
Aircraft serial
29478
Aircraft time
126,311 hours, 13,073 cycles
Engine
Ge GE9094B
Part
Battery
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

BATTERY CAPACITY CHECK FAILED. THE EMERGENCY LIGHT BATTERY PACK WAS REPLACED (M33400) AND CHECKED NORMAL IAW AMM 33-51-06.