Automatic Dependent Surveillance-Broadcast Data Is Contributing To The Investigation

On June 8, 2020, at 0946 central daylight time, a Flight Design GMBH CTLS airplane, N257V was destroyed when it was involved in an accident, near Beecher, Illinois. The pilot was fatally injured. The airplane had just departed from runway 09 at the Bult Field airport (C56). There were no witnesses to the accident but preliminary Automatic Dependent Surveillance-Broadcast (ADSB) data showed the airplane accelerated to about 60 kts. groundspeed and climbed to about 75 ft. above ground level (agl). The groundspeed then decreased to about 50 kts while the altitude continued to increase until it reached about 175 ft agl. At that time, the airplane was about 300 ft shor