# SDR WX0A2020101973591

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2020
- Submitted: October 19, 2020
- Operation: Air carrier
- Aircraft: [N319NV](https://openairdocs.org/aircraft/N319NV), registered now
- Make and model: Airbus A319-111
- Registry model: [Airbus A319-111](https://openairdocs.org/model/airbus-a319-111) (OpenAirDocs)
- Aircraft serial: 2503
- Aircraft time: 42,662 hours, 29,083 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32146210
- Part serial: 2884
- 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/WX0A2020101973591

## Discrepancy

EMERGENCY POWER SUPPLY UNIT 13WL FAILED EPSU BAT CAP TEST.  REMOVE EMERGENCY POWER SUPPLY UNIT 13WL AMM 33-51-38-000-001-A AND INSTALL 33-51-38-400-001-A.  BITE TEST GOOD, AMM 33-51-00-710-001-A.

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