# SDR WX0A2026030432747

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2026
- Submitted: March 4, 2026
- Operation: Air carrier
- Aircraft: [N290NV](https://openairdocs.org/aircraft/N290NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 2191
- Aircraft time: 57,093 hours, 35,286 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 935086
- 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/WX0A2026030432747

## Discrepancy

(AIRCRAFT NOT GROUNDED) EPSU 10WL, 12WL, 13WL  BATTERY FAULT.  REMOVED AND REPLACED 10WL, 12WL AND 13WL IAW AMM 33-51-38-000-002-A - 400-002-A. PERFORMED OPS TEST OF EPSU THRU BITE CHECK, OPS CHECK GOOD. PERFORMED INTERFACE AND POWER-UP TEST OF THE CIDS, OPS CHECK GOOD.

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