N352BT - Aircraft Aircraft Registration

The pilot's failure to properly secure the engine coolant pump pulley during recent maintenance, which resulted in a loss of the engine's lubrication, cooling, and propeller control systems, and a forced landing, during which the airplane nosed over. Contributing was the design of the accessory drive system, which allowed for multiple simultaneous failures of critical engine components. Contributing to the pilot's fatal injuries was the inadequate support provided by the airplane's canopy structure, which did not protect him during the relatively innocuous nose-over event.