How Gyroplane Accidents Happen: Mechanisms the NTSB Records
The NTSB investigates each accident individually; the cause of any specific accident is what the NTSB's own report states, not what general patterns suggest. What follows describes, in general terms, the kinds of things that can go wrong with an aircraft of this type. None of it says why any particular gyroplane went down.
Rotor contact is one category. A gyroplane's rotor blades are long and turn close to the ground during taxi, takeoff and landing. Contact with the ground, an object, the aircraft's own tail, or a person can happen during ground handling or low maneuvering.
Loss of control is another. Because the rotor's lift depends on airflow through it, the way a pilot moves the controls, and how quickly, affects how the rotor behaves. Loss of control during takeoff, landing, or a low-altitude maneuver is a broad category. It can involve pilot inputs, aircraft handling characteristics, or both.
Power and propeller problems are a third. If the engine or the propeller fails, the pilot loses thrust and has to land wherever the aircraft can reach.
Structural failure is a fourth: a failure of the rotor mast, the rotor hub, the blades, or the airframe. These parts carry heavy loads, and a failure in one of them can leave little or no chance to recover.
Weather is a fifth. Gusty wind, wind shear, turbulence and low visibility affect small, light aircraft flying near the ground.
Maintenance runs through several of these categories. An inspection, repair or alteration done improperly, or not done at all, can be part of how an engine, a rotor component or a structure ends up failing.
Each mechanism points toward different people. A rotor hub failure raises questions about design, manufacture and maintenance. A loss of control raises questions about training, the pilot and the aircraft's handling. Which mechanism the evidence in a given crash actually supports is a factual question. That is often where a conversation with an attorney about a specific case starts.