In aviation, AMEL stands for Aircraft Maintenance Engineer License, and its types typically align with the categories of aircraft and their systems. AMEL CategoriesCategory A (Mechanic): Basic maintenance tasks on an aircraft.A1: Turbine-powered airplanes.A2: Piston-powered airplanes.A3: Turbine-powered helicopters.A4: Piston-powered helicopters.Category B (Technician/Engineer): Licensed to perform and certify complex tasks.B1: Mechanical (structures, engines, systems).B1.1: Turbine...