Primary finding
Probable cause
The student pilot not controlling the helicopter following a wind gust and the flight instructor's inadequate remedial action resulting in the helicopter rolling over on its side during a landing.
Investigator assessment
Analysis narrative
For about 30 minutes, the flight instructor and his student pilot were practicing hovering and landings on a level concrete area. During the accident touchdown, a wind gust or wind shift occurred and the helicopter shifted sideways. The pilots felt the skids "catch" and the left side of the helicopter began to lift. The flight instructor called for and took control of the helicopter. The student pilot had not released his controls. The helicopter then rolled onto its right side. The helicopter sustained substantial tailboom damage. The pilot's accident report indicated that there were no helicopter mechanical malfunctions.
Source record
Factual narrative
For about 30 minutes, the flight instructor and his student pilot were practicing hovering and landings on a level concrete area. During the accident touchdown, a wind gust or wind shift occurred and the helicopter shifted sideways. The pilots felt the skids "catch" and the left side of the helicopter began to lift. The flight instructor called for and took control of the helicopter. The student pilot had not released his controls. The helicopter then rolled onto its right side. The helicopter sustained substantial tailboom damage. The pilot's accident report indicated that there were no helicopter mechanical malfunctions.