# SDR AALA202011129009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2020
- Submitted: November 12, 2020
- Operation: Air carrier
- Aircraft: [N545UW](https://openairdocs.org/aircraft/N545UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4850
- Aircraft time: 31,351 hours, 11,762 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 137763
- Condition: Inoperative
- Location: Emergency Lights
- Part time: 31,351 hours, 11,762 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202011129009

## Discrepancy

AIRCRAFT WAS GROUNDED.  EMERGENCY POWER SUPPLY UNIT 14WL INOPERATIVE.  REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT 14WL.

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