On July 10, 2009, a FLIGHT DESIGN GMBH CTSW operated by HELLER ROGER W was involved in an aviation accident near Sulphur Creek, ID. No fatalities were reported. Investigators recorded the probable cause as: The pilot's failure to maintain directional control during the landing roll. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.
During landing on a rough gravel strip, hard braking caused a skid left off the convex runway crown. The airplane exited and hit a rock pile, nosing over and damaging wings and rudder.
Landing and Braking
After touching down on a remote rough gravel airstrip, the pilot applied what he described as "hard braking" using the non-differential handbrake. He simultaneously attempted to maintain directional control with the nose wheel steering.
Loss of Control
As the landing roll progressed, the airplane began to skid or slip to the left side of the convex-shaped runway crown. It eventually departed the runway surface.
Impact with Rock Pile
The airplane then struck a large rock pile. The impact caused the aircraft to nose over onto its back. The wings sustained damage, and the rudder separated from its hinges.
Contributing factors
Causes
Directional control — Not attained/maintainedPilot
What happened in the 10 Jul 2009 FLIGHT DESIGN GMBH CTSW accident near Sulphur Creek, ID?
During landing on a rough gravel strip, hard braking caused a skid left off the convex runway crown. The airplane exited and hit a rock pile, nosing over and damaging wings and rudder.
Were there any fatalities in the 10 Jul 2009 FLIGHT DESIGN GMBH CTSW accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 10 Jul 2009 involved a FLIGHT DESIGN GMBH CTSW, operated by HELLER ROGER W, at Sulphur Creek, ID.
What was the probable cause of the accident?
The pilot's failure to maintain directional control during the landing roll.
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