# SDR WX0A2021092073836

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2021
- Submitted: September 20, 2021
- Operation: Air carrier
- Aircraft: [N305NV](https://openairdocs.org/aircraft/N305NV), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 2398
- Aircraft time: 46,932 hours, 31,340 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 869105
- Condition: No Test
- Location: Emergency Light
- 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/WX0A2021092073836

## Discrepancy

EPSU SYSTEM TEST REVEALED EPSU 11WL AND 13WL FAILED. / REMOVED AND REPLACED EPSU'S 11WL AND 13WL IAW AMM 33-51-38 PB 401. OPS CHECK GOOD."

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