# SDR DALA2017060404449

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2017
- Submitted: June 6, 2017
- Operation: Air carrier
- Aircraft: N936DN
- 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: 53461
- Aircraft time: 40,625 hours, 26,540 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cabin
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017060404449

## Discrepancy

1/2 OF THE CEILING EMERGENCY LIGHTS REMAINED ILLUMINATED FOR ENTIRE FLIGHT.  CYCLED EMERGENCY POWER SWITCH. OPERATION CHECKS NORMAL.

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