# SDR DALA1209813358

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2012
- Submitted: February 21, 2012
- Operation: Air carrier
- Aircraft: [N858NW](https://openairdocs.org/aircraft/N858NW), registered now
- Make and model: Airbus A330-223
- Registry model: [Airbus A330-223](https://openairdocs.org/model/airbus-a330-223) (OpenAirDocs)
- Aircraft serial: 718
- Aircraft time: 6,342 hours, 880 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/DALA1209813358

## Discrepancy

DURING EMERGENCY LIGHT TEST, EPSU 16WL FAILED.  EPSU 16WL BATTERY WAS REPLACED AS PER MM 33-51-38.   LIGHT TEST PASSED IAW MM 33-51-00.

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