# SDR DALA2016072705623

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2016
- Submitted: July 28, 2016
- Operation: Air carrier
- Aircraft: N989DN
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55067
- Aircraft time: 31,610 hours, 31,940 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Condition: Intermittent
- Location: Emergency Lights
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2016072705623

## Discrepancy

THE PILOT REPORTED THAT SOME OF THE EMERGENCY LIGHTS IN THE AIRCRAFT HAD ILLUMINATED UNCOMMANDED.  MAINTENANCE REPLACED AN INTERMITTENT EMERGENCY LIGHT SWITCH S1-177 IN THE COCKPIT AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

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