# SDR DALA2016020400945

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2016
- Submitted: February 9, 2016
- Operation: Air carrier
- Aircraft: N909DA
- 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: 53389
- Aircraft time: 54,414 hours, 29,290 cycles
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Control Valve
- Condition: Malfunctioned
- Location: Slat Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2016020400945

## Discrepancy

AFTER TAKEOFF, SLATS SELACTED TO UP POSITION.  DISAGREE LIGHT ILLUMINATED.  PILOTS OBSERVED SLATS IN EXTEND POSITION DURING FLIGHT.  MAINTENANCE REMOVED AND INSTALLED SLAT CONTROL VALVE.

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