Viking/Turbo-Viking 17-30/31
Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 7; Flight Crew Total 271; Flight Crew Type 10
Training / Qualification
Aircraft Equipment Problem Less Severe; Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Runway
General None Reported / Taken
Human Factors
The aircraft pulled sharply to the left upon contact with the runway. Attempted to correct with right rudder and back pressure on the yoke; however the plane pulled sharply right. Correction with left rudder resulted in an even sharper turn to the left; and further attempts to straighten the plane increased its horizontal oscillation down the runway.  The plane departed the runway to the left into the grass and rolled approximately 250 feet before stopping. The aircraft sustained no damage.
A Bellanca BL17 pilot reported loss of directional control after landing that led to a runway excursion.