# SDR DXTA2009042803621

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2009
- Submitted: April 29, 2009
- Operation: Air carrier
- Aircraft: [N712QS](https://openairdocs.org/aircraft/N712QS), registered now
- Make and model: Gulstm 200
- Aircraft serial: 073
- Aircraft time: 4,747 hours, 2,892 cycles
- System (JASC): [2700 · Flight Control System](https://openairdocs.org/jasc/2700)
- Part: Unknown
- Condition: Unknown
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2009042803621

## Discrepancy

AT FL390 WITH AUTOPILOT ON THE ACFT APPEARED TO BE DUTCH ROLLING. WITH AP OFF, ACFT AILERONS ARE VERY STIFF AND DIFFICULT TO OPERATE. ROLLS STARTED AT 2 DEGREES AND FINALLY WAS DOING 15 DEGREES. SAT WAS -60 AND WHEN WE DESCENDED TO FL 270 THE PROBLEM WAS GREATLY REDUCED WITH TEMP SAT - 30. APPROACH AND LANDING THE PROBLEM COMPLETELY RESOLVED.

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