# SDR DALA2017100507294

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2017
- Submitted: October 5, 2017
- Operation: Air carrier
- Aircraft: [N501DN](https://openairdocs.org/aircraft/N501DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0115
- Aircraft time: 112 hours, 116 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Faulted
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017100507294

## Discrepancy

DISPATCH MESSAGE FOR THE EMERGENCY LIGHTS APPEARED.  REPLACED THE EPSU 102WL3.

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