Service difficulty report · Battery · Boeing 777224

Difficulty date
April 17, 2026
Submitted
April 20, 2026
Operation
Air carrier
Aircraft
N77022
Make and model
Boeing 777224
Aircraft serial
39777
Aircraft time
72,018 hours, 7,236 cycles
Part
Battery
Part number
D71701100
Condition
Inoperative
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 M33424 EMER LIGHT BATTERY CAPACTY CHECK FAILED. DOOR 1L M33424 EMERGENCY LIGHT BATTERY REPLACED AND TESTED NORMAL IAW AMM 33-51-06.