# SDR AALA202410039759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2024
- Submitted: October 3, 2024
- Operation: Air carrier
- Aircraft: [N770UW](https://openairdocs.org/aircraft/N770UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1393
- Aircraft time: 59,838 hours, 38,425 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 2559
- Condition: No Test
- Location: Zone 200
- Part time: 62,756 hours, 39,798 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/AALA202410039759

## Discrepancy

AIRCRAFT WAS IN BASE MAINTENANCE: LEFT OVERWING EMERGENCY LIGHT EMERGENCY POWER SUPPLY UNIT SHOWS UNIT FAIL ON TEST. REPLACED LEFTHAND EMERGENCY EXIT EMERGENCY POWER SUPPLY UNIT 11WL.

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