Subject to the dangers from exposure to toxic fumes, high pressure air and fluids, fast actuating metal aircraft surfaces (landing gears, speed brakes, missile doors and flaps), engine noise, heat blast, intake suction, rotating propellers, explosive munitions, electrical voltage, cartridge actuating devices, liquid oxygen/nitrogen, fire or explosion of aircraft fuels, lubricants, paints and solvents. Occupations supervised are somewhat similar, in that they all involve maintenance of assigned aircraft to ensure combat readiness; they are dissimilar in their organizational location, as well as the functional areas, occupational series, and the diversity and complexity of systems for which each function is responsible.