# SDR DALA2025123109562

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2025
- Submitted: December 31, 2025
- Operation: Air carrier
- Aircraft: [N310DN](https://openairdocs.org/aircraft/N310DN), registered now
- Make and model: Airbus A321-213
- Registry model: [Airbus A321-213](https://openairdocs.org/model/airbus-a321-213) (OpenAirDocs)
- Aircraft serial: 7293
- Aircraft time: 25,315 hours, 12,171 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025123109562

## Discrepancy

EMERGENCY LIGHTS OUT AT ROWS 15,16,19,20,23,24,30,31,32,36 AND 37.   REPLACED 11WL EPSU REF A321 AMM 33-51, OPS CKS GOOD. (LP 8187020)

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