# SDR USAA2012031200002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2012
- Submitted: March 12, 2012
- Operation: Air carrier
- Aircraft: [N629AW](https://openairdocs.org/aircraft/N629AW), registered now
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 76
- Aircraft time: 71,079 hours, 31,784 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 321452
- Part serial: 431
- Condition: Faulty
- Location: Cabin
- Part time: 68,506 hours, 30,800 cycles
- 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/USAA2012031200002

## Discrepancy

BC1 CHECK - DURING OPERATIONAL TEST EMERGENCY EXIT LIGHT WAS FAULT FOUND ON EPSU 11WL, ON PERFORM EMERGENCY EXIT LIGHT TEST AS PER JOB CARD 26L00005005.  REPLACED EMERGENCY POWER SUPPLY UNIT (11 WL) & ACCOMPLISHED OPERATIONAL TEST IAW A320 AMM 33-51-38-400-011.  OPS CHECK GOOD.

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