# SDR AALA202107079747

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2021
- Submitted: July 7, 2021
- Operation: Air carrier
- Aircraft: [N583UW](https://openairdocs.org/aircraft/N583UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6181
- Aircraft time: 22,707 hours, 8,918 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 146156
- Condition: No Test
- Location: Emergency Lights
- Part time: 22,707 hours, 8,918 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/AALA202107079747

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTING EMERGENCY POWER SUPPLY UNIT FAILED TEST DURING PS CKECK 11WL. REMOVED AND REPLACED 11WL EMERGENCY POWER SUPPLY UNIT PER AMM 33-51-38.

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