# SDR DXTA200500877

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2005
- Submitted: August 10, 2005
- Operation: Air carrier
- Aircraft: [N912QS](https://openairdocs.org/aircraft/N912QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500012
- Aircraft time: 5,679 hours, 3,411 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Yaw Damper
- Condition: Malfunctioned
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA200500877

## Discrepancy

IN FLIGHT YAW DAMPER DOES NOT APPEAR TO OPERATE IN COORDINATION WITH FLIGHT CONTROLS.  LAGS AND OVERCORRECTS.  SEVERAL TIMES IN FLIGHT, BOTH ON AUTO-PILOT AND WHEN HAND FLOWN, YAW DAMPER APPEARS TO OPERATE UNCOMMANDED.  OVERCOMPENSATING APPEARS WORSE ON B FGC.  RUDDER TRIM INDICATOR ALMOST OUT OF TAKEOFF SCALE TO THE LEFT IN COORDINATED LEVEL FLIGHT.  AMBER CAS MESSAGE RETRIM WING DOWN TWICE.

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