Robinson R44 crash near Batesville, TX, United States

According to the pilot, the helicopter was positioned on a trailer with clamps and blade holders. The pilot added that during the preflight inspection, he forgot to remove the clamp, which held the left skid to the trailer. During takeoff, the tie-down clamp did not give way and the helicopter encountered dynamic rollover. The helicopter rolled to the left and impacted the ground. Postaccident examination of the wreckage revealed structural damage to the helicopter.