# SDR AALA202006309013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 28, 2020
- Submitted: June 30, 2020
- Operation: Air carrier
- Aircraft: [N557UW](https://openairdocs.org/aircraft/N557UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5269
- Aircraft time: 26,363 hours, 10,395 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 140273
- Condition: No Test
- Location: Emergency Lights
- Part time: 26,360 hours, 10,393 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/AALA202006309013

## Discrepancy

AIRCRAFT IN BASE VISIT: EPSU TEST FAILED AFTER SLIDE WAS CHANGE, (SCHEDULED CHANGE). REPLACED EPSU IAW AMM 33-50-01.

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