# SDR UALA2009040600974

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2009
- Submitted: April 8, 2009
- Operation: Air carrier
- Aircraft: [N831UA](https://openairdocs.org/aircraft/N831UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1291
- Aircraft time: 30,332 hours, 11,868 cycles
- Engine: Iae V2522A5
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32142410
- Condition: Failed
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009040600974

## Discrepancy

EPSU 10WL FAILS TEST, INTERNAL UNIT FAULT.  T/S EMERGENCY LIGHTING IAW TSM 33-51-00.  FOUND BAD EPSU 10WL ABOVE L1 DOOR.  REMOVED & REPLACED, OP CHECK GOOD.

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