# SDR WX0A2026080332913

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2026
- Submitted: August 3, 2026
- Operation: Air carrier
- Aircraft: [N278NV](https://openairdocs.org/aircraft/N278NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 4253
- Aircraft time: 49,212 hours, 21,174 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 964844
- Condition: No Test
- 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/WX0A2026080332913

## Discrepancy

(AIRCRAFT NOT GROUNDED) DURING EPSU SYSTEM TEST BAT/EPSU(10WL) FWD L FAULT. / FOLLOWING TSM 33-51-00-810-829-A, REMOVED AND REPLACED 10WL EPSU BATTERY IAW AMM 33-51-38-000-002-A AND AMM 33-51-38-400-002-A. OPS CHECK SATISFACTORY."

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