What was found
AIRCRAFT WAS GROUNDED: L4 DOOR EMERGENCY LIGHTS DO NOT COME ON. L4 DOOR REPLACED BATTERY PACK ASSEMBLY EMERGENCY LIGHT M33405 (AALA202210032262) AND M33406 (AALA202210049055) AS PER AMM 33-51-06.
- Difficulty date
- September 30, 2022
- Submitted
- October 4, 2022
- Operation
- Air carrier
- Aircraft
- N721AN
- Make and model
- Boeing 777323
- Aircraft serial
- 31546
- Aircraft time
- 37,929 hours, 4,359 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Inoperative
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.