# SDR DALA2015123007827

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2015
- Submitted: January 5, 2016
- Operation: Air carrier
- Aircraft: N905DA
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53385
- Aircraft time: 54,837 hours, 29,704 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- 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/DALA2015123007827

## Discrepancy

EMERGENCY LIGHT SWITCH WON'T TURN ON LIGHTS.  R & R OVERWING EMERGENCY BATTERY PACKS.  OPS CHECKS OK.

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