# SDR USAA2012032600026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2012
- Submitted: March 26, 2012
- Operation: Air carrier
- Aircraft: [N746UW](https://openairdocs.org/aircraft/N746UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1297
- Aircraft time: 31,439 hours, 20,277 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 2167
- Condition: Inoperative
- Location: Cabin
- Part time: 31,391 hours, 17,731 cycles
- 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/USAA2012032600026

## Discrepancy

EMERGENCY LIGHT TEST FAILED - UNIT FAULT DISPLAYED ON RIGHT EMERGENCY LIGHT EPSU.  REMOVED AND REPLACED RIGHT EMERGENCY POWER SUPPLY UNIT (EPSU) PER AMM 33-51-38.  OPS CHECKED GOOD.

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