Service difficulty report · Battery · Boeing 777224

Difficulty date
May 6, 2026
Submitted
May 7, 2026
Operation
Air carrier
Aircraft
N78013
Make and model
Boeing 777224
Aircraft serial
29861
Aircraft time
124,573 hours, 12,900 cycles
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

R2 DOOR, M33098 EMERGENCY LIGHT BATTERY CAPACITY CHECK FAILED. THE BATTERY WAS REPLACED AND TESTED NORMAL IAW AMM 33-51-06.