# SDR WX0A2021111773872

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2021
- Submitted: November 17, 2021
- Operation: Air carrier
- Aircraft: [N308NV](https://openairdocs.org/aircraft/N308NV), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 2450
- Aircraft time: 46,867 hours, 30,372 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 869108
- Condition: Failed
- Location: 13wl
- Stage of operation: IN
- How discovered: O
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2021111773872

## Discrepancy

AFTER STARTING EPSU BAT CAP TEST, FAILURE ""BAT/EPSU(13WL)AFT L"" APPEARED. / REF. TSM 33-51-00-810-857, R & R'D EPSU BATTERY (13WL) AFT L IAW AMM 33-51-38."

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