# SDR AALA202405150627

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2024
- Submitted: May 15, 2024
- Operation: Air carrier
- Aircraft: [N956XV](https://openairdocs.org/aircraft/N956XV), registered now
- Make and model: Airbus A321-253N
- Registry model: [Airbus A321-253N](https://openairdocs.org/model/airbus-a321-253n) (OpenAirDocs)
- Aircraft serial: 8126
- Aircraft time: 17,637 hours, 4,561 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Condition: Faulty
- 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/AALA202405150627

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: CIDS TEST SHOWS EMERGENCY POWER SUPPLY UNIT 11WL BATTERY FAULT. REPLACED EMERGENCY POWER SUPPLY UNIT.

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