Repair, replace, and rebuild aircraft structures and functional components including rigging, surface controls, plumbing, and hydraulic units, using hand tools, power tools, machines, equipment such as shears, sheet metal brake, welding equipment, rivet gun, and drills. • Replace or repair worn or damaged components, such as alternators, fuel controls, fuel pumps, oil pumps, engine mounted gearboxes, and compressor bleed valves using hand tools, gauges, and testing equipment.