What is the cause of fire hazards at an extrication scene involving rotary saws?

The reason producing sparks is identified as a cause of fire hazards at an extrication scene involving rotary saws is due to the nature of the tool's operation. Rotary saws generate significant heat and may create sparks when cutting through various materials, especially if they encounter metal. These sparks can ignite flammable substances in the environment, such as fuel or other combustible materials often present at accident scenes.

While friction with metal can indeed create heat, the specific immediate risk of fire hazards is more directly associated with the sparks produced. Additionally, the potential for electrical malfunctions exists with any powered tool, but the mechanical operation of a rotary saw is particularly prone to producing sparks. Fuel spills are also a concern; however, without the ignition source, the risk of fire remains lower. Therefore, the primary risk factor in this scenario is the sparks generated by the saw during its operation.