# SDR DALA2017041403022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2017
- Submitted: April 14, 2017
- Operation: Air carrier
- Aircraft: [N815NW](https://openairdocs.org/aircraft/N815NW), registered now
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 0817
- Aircraft time: 46,040 hours, 6,107 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: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017041403022

## Discrepancy

DURING B CHECK, FOUND EPSU 16WL AND 13WL FAULTY.  REPLACED EPSU 13WL AND 16WL.

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