What was found
DURING EMERGENCY LIGHT TEST, RECIEVED FAULT EPSU BATTERY WARNING . VERIFIED BATTERY FAULT ON EPSU 12WL SELF TEST IAW AMM 33-51-38, R & R THE BATTERY PACK, OP CHKD GOOD IAW AMM 33-51-38.
- Difficulty date
- October 16, 2026
- Submitted
- October 19, 2026
- Operation
- Air carrier
- Aircraft
- N465UA
- Make and model
- Airbus A320232
- Aircraft serial
- 1341
- Aircraft time
- 76,819 hours, 33,662 cycles
- Engine
- Iae V2527A5
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- AD321431
- Condition
- Faulted
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L, J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.