# SDR AALA2020032759002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2020
- Submitted: March 27, 2020
- Operation: Air carrier
- Aircraft: [N647AW](https://openairdocs.org/aircraft/N647AW), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 762
- Aircraft time: 75,658 hours, 29,337 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 1555
- Condition: Inoperative
- Location: Cabin
- Part time: 51,861 hours, 25,233 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/AALA2020032759002

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT BITE TEST FAILED. MAINTENANCE FOUND EMERGENCY POWER SUPPLY UNIT FAULTY AND REPLACED POWER SUPPLY UNIT PER AMM 33-51-58-0401.

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