# SDR NWAA091873320

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2009
- Submitted: May 29, 2009
- 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: 7,825 hours, 1,105 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part serial: 09100
- Condition: Inoperative
- Location: Emergency Lights
- Part time: 9,105 hours, 1,299 cycles
- 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/NWAA091873320

## Discrepancy

EMERGENCY EXIT LIGHT INOP.  REPLACED THE "EPSU" POWER SUPPLY AND BATTERY AND TESTED GOOD.

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