What was found
FLT#1621, LHR-BOS. "EMERGENCY LIGHT BAT 10WL REQ REPLACEMENT PER TC A320-33-51-00-710-003; REMOVED AND REPLACED EMERG BAT 10WL IAW AMM 33-51-38. OPS CHECK FAILED, SEE LP 3504923 ITEM 1"
- Difficulty date
- October 5, 2025
- Submitted
- October 7, 2025
- Operation
- Air carrier
- Aircraft
- N4076J
- Make and model
- Airbus A321271NX
- Aircraft serial
- 11513
- Aircraft time
- 8,417 hours, 1,252 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Part serial
- 958619
- Condition
- Failed
- Location
- Zone 200
- Part time
- 4,546 hours, 685 cycles
- 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.