# SDR DALA2015030201820

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2015
- Submitted: March 4, 2015
- Operation: Air carrier
- Aircraft: [N820NW](https://openairdocs.org/aircraft/N820NW), registered now
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 0859
- Aircraft time: 34,335 hours, 4,499 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: No Test
- 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/DALA2015030201820

## Discrepancy

DURING EMERGENCY LIGHT TEST, EPSU 13WL FAULTED. R & R EPSU.

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