# SDR WX0A2023072131799

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2023
- Submitted: July 21, 2023
- 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: 50,576 hours, 33,224 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32146210
- Part serial: 012403
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: C
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2023072131799

## Discrepancy

EMERG LIGHT TEST FAILS ON MCDU WITH 12WL AND 13WL. / REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNITS 12WL AND 13WL PER AMM 33-51-38-000-001-A AND 33-51-38-400-001-A, OPS CHECK GOOD AT THIS TIME."

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