Fallston, MD, USA
N786SH
ROBINSON HELICOPTER COMPANY R22
The flight instructor and his student were performing maneuvers as part of a flight lesson. About 40 minutes into the flight, while attempting a left pedal turn, the helicopter descended just enough to touch the left rear skid, which surprised the student, who then added right lateral cyclic control. The helicopter’s right skid dug in the ground, and the helicopter rolled over on to its right side, which resulted in substantial damage to the fuselage and main rotor blades. The helicopter manufacturer’s flight maneuvers guide advised that a 5-foot hover should be used for all taxi and hover operations, and a minimum 5-foot hover was the policy of the flight school. After the accident, the flight school had discussions with all their helicopter instructors to emphasize the need to maintain proper height above the ground, the need to closely guard the controls while instructing, and the need for improved awareness of the capabilities and experience of the students.
The student pilot's unstabilized hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor's inadequate supervision of the student and his delayed remedial action.
Source: NTSB Aviation Accident Database
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