# SDR WX0A2026082432929

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2026
- Submitted: August 24, 2026
- Operation: Air carrier
- Aircraft: [N257NV](https://openairdocs.org/aircraft/N257NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 8329
- Aircraft time: 20,025 hours, 9,992 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 962038
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2026082432929

## Discrepancy

(AIRCRAFT NOT GROUNDED) UPON EPSU SYSTEM TEST RECIEVED FAULT MESSAGE ""BAT/EPSU(13WL)AFT L"" / REMOVED AND REPLACED EPSU SYSTEM BATER FIN 13WL IAW AMM 33-51-38-000-001-A & 33-51-38-400-001-A. OPS CHECK GOOD.

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