# SDR WX0A2020121573619

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2020
- Submitted: December 15, 2020
- Operation: Air carrier
- Aircraft: [N331NV](https://openairdocs.org/aircraft/N331NV), registered now
- Make and model: Airbus A319-111
- Registry model: [Airbus A319-111](https://openairdocs.org/model/airbus-a319-111) (OpenAirDocs)
- Aircraft serial: 2625
- Aircraft time: 44,759 hours, 34,748 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 321431
- Part serial: 813510
- Condition: No Test
- Location: Emergency Lights
- 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/WX0A2020121573619

## Discrepancy

BATTERY ON EPSU 10WL FAILED EMERGENCY LIGHT TEST.  REMOVED AND REPLACED EPSU BATTERY 10WL, IAW A319 AMM 33-51-38 PB 401.  OPERATIONS CHECK GOOD.

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