# SDR AALA2020060209005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2020
- Submitted: June 2, 2020
- Operation: Air carrier
- Aircraft: [N580UW](https://openairdocs.org/aircraft/N580UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6133
- Aircraft time: 20,242 hours, 7,879 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 145819
- Condition: Failed
- Location: Cabin
- Part time: 20,242 hours, 7,879 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/AALA2020060209005

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE.  EPSU 10WL FAILED BUILT IN TEST EQUIPMENT CHECK.  REMOVED AND REPLACED 10WL EPSU IAW AMM TASK 33-51-38-400-001-A.

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