# SDR DALA2025112308527

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 2025
- Submitted: November 23, 2025
- Operation: Air carrier
- Aircraft: [N306DN](https://openairdocs.org/aircraft/N306DN), registered now
- Make and model: Airbus A321-213
- Registry model: [Airbus A321-213](https://openairdocs.org/model/airbus-a321-213) (OpenAirDocs)
- Aircraft serial: 7165
- Aircraft time: 27,115 hours, 12,954 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: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025112308527

## Discrepancy

DURING BITE OF EPSU GOT EPSU 15WL CLASS I MSG.   REPLACED EPSU 15WL PER A321 AMM 33-51. (LP 8137933)

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