# SDR USA2004F00059

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2004
- Submitted: June 30, 2004
- Operation: Air carrier
- Aircraft: [N721UW](https://openairdocs.org/aircraft/N721UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1095
- Engine: Ge CFM56*
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32142410
- Condition: Faulty
- Location: Emergency Light
- Part time: 3,895 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USA2004F00059

## Discrepancy

THE AFT LEFT EMERGENCY POWER SUPPLY UNIT FAILED TESTING.  MAINTENANCE REMOVED AND REPLACED THE AFT LEFT EMERGENCY POWER SUPPLY UNIT.  OPERATIONALLY CHECKS OK.

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