Service difficulty report · Battery · Boeing 777222

Difficulty date
March 25, 2025
Submitted
March 28, 2025
Operation
Air carrier
Aircraft
N775UA
Make and model
Boeing 777222
Aircraft serial
26947
Aircraft time
104,591 hours, 18,828 cycles
Part
Battery
Part number
D71701100
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

L1 DOOR EMERGENCY LIGHT BATTERY M33424 DEEP CYCLE CHECK FAILED. BATTERY M33424 REPLACED AND TEST NORMAL IAW AMM 33-51 -06.