What was found
L3 DOOR EMERGENCY LIGHT BATTERY M33405 FAILED CAPACITY CHECK. BATTERY M33405 REPLACED AND TESTED NORMAL IAW AMM 33-51-06.
- Difficulty date
- December 5, 2025
- Submitted
- December 8, 2025
- Operation
- Air carrier
- Aircraft
- N37018
- Make and model
- Boeing 777224
- Aircraft serial
- 31680
- Aircraft time
- 110,845 hours, 11,262 cycles
- System (JASC)
- 3350 · Emergency Lighting
- 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.