# SDR AALA2020042969001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2020
- Submitted: April 29, 2020
- Operation: Air carrier
- Aircraft: [N979UY](https://openairdocs.org/aircraft/N979UY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5763
- Aircraft time: 22,246 hours, 8,950 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 143503
- Condition: Inoperative
- Location: Cabin
- Part time: 22,246 hours, 8,950 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/AALA2020042969001

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE - R1 EMERGENCY POWER SUPPLY UNIT (EPSU) 14WL INOPERATIVE.  REPLACED EMERGENCY POWER SUPPLY PER JOB CARD 26C22025007/001.

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