# SDR UALA2009021300475

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2009
- Submitted: February 18, 2009
- Operation: Air carrier
- Aircraft: [N846UA](https://openairdocs.org/aircraft/N846UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1600
- Aircraft time: 25,690 hours, 10,099 cycles
- Engine: Iae V2522A5
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- 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/UALA2009021300475

## Discrepancy

AFT LEFT BATTERY PACK FAILS EMERGENCY LIGHT TEST, PACK IT'S SELF WON'T TEST.  REPLACED POWER SUPPLY AND BATTERY PACK, TEST OK.

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