# SDR WX0A2023050131759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2023
- Submitted: May 1, 2023
- Operation: Air carrier
- Aircraft: [N274NV](https://openairdocs.org/aircraft/N274NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 3079
- Aircraft time: 34,365 hours, 24,800 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 880441
- Condition: Unknown
- Stage of operation: IN
- How discovered: C
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2023050131759

## Discrepancy

""BAT/EPSU (10WL) FWD L;(12WL) EMER R;(13WL) AFT L"" MESSAGE ON EPSU TEST / REMOVED AND REPLACED EPSU BATTERY AT LOCATION 10WL,12WL,13WL IAW AMM 33-51-38-000-002-A AND 33-51-38-400-002-A. OPS CHECK GOOD"

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.