# SDR WX0A2026052232821

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2026
- Submitted: May 23, 2026
- Operation: Air carrier
- Aircraft: [N294NV](https://openairdocs.org/aircraft/N294NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 4941
- Aircraft time: 37,201 hours, 21,755 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 941114
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: P
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2026052232821

## Discrepancy

(AIRCRAFT NOT GROUNDED) DURING TEST OF EPSU, FAULT 10WL AND 11WL DISPLAYED. / REPLACED FWD 10WL AND MID LEFT 11WL EMERGENCY POWER SUPPLY BATTERIES IAW AMM 33-51-38-000-002-A AND 33-51-38-400-002-A. FAULT CLEARED, OPS CHECK OF EPSU SYSTEM GOOD PER 33-51-00-710-006-A."

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