# SDR AALA2020072879017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2020
- Submitted: July 28, 2020
- Operation: Air carrier
- Aircraft: [N149AN](https://openairdocs.org/aircraft/N149AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6812
- Aircraft time: 14,795 hours, 5,717 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 150332
- Condition: No Test
- Location: Emergency Lights
- 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/AALA2020072879017

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE - L1 DOOR EPSU (EMERGENCY POWER SUPPLY UNIT) FAILED EMERGENCY LIGHT TEST.  REMOVED AND REPLACED L1 EPSU 10WL PER AMM 33-58-38, OPERATIONAL CHECK GOOD.

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