# SDR DALA2016021801181

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2016
- Submitted: February 18, 2016
- Operation: Air carrier
- Aircraft: [N852NW](https://openairdocs.org/aircraft/N852NW), registered now
- Make and model: Airbus A330-223
- Registry model: [Airbus A330-223](https://openairdocs.org/model/airbus-a330-223) (OpenAirDocs)
- Aircraft serial: 0614
- Aircraft time: 48,628 hours, 6,451 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: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2016021801181

## Discrepancy

DURING M-CHECK EPSU DOOR 4 17WL, 18WL, AND BCCR 19WL FAILED EPSU TEST.  REPLACED EPSU BATTERIES AT 17WL, 18WL, AND 19WL.

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