# SDR AALA202305164418

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2023
- Submitted: May 16, 2023
- Operation: Air carrier
- Aircraft: [N665AW](https://openairdocs.org/aircraft/N665AW), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1644
- Aircraft time: 68,677 hours, 27,712 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 3622
- Condition: No Test
- Location: Zone 200 - Fuse
- Part time: 64,561 hours, 28,283 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/AALA202305164418

## Discrepancy

AIRCRAFT WAS IN BASE MAINTENANCE: LEFT MIDDLE EMERGENCY POWER SUPPLY UNIT FOR OVERWING EMERGENCY LIGHTS FAILS SYSTEM TEST. REMOVED AND REPLACED LEFT MIDDLE EMERGENCY POWER SUPPLY UNIT.

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