Cessna 404, VH-SBG, Kowanyama QLD, 25 January 1990

During the take-off run, as power was being increased, the nose wheel broke through the runway surface and the nosegear leg collapsed. The central area of sections of the runway had previously been filled with coarse river gravel. This fill had then been overlaid with finer material and bonded with an oily fluid. When the aircraft broke through the top crust, the wheels sank readily into the gravel and the nose leg was torn from the aircraft.