Proven experience using hand and power tools such as hammers, chisels, hand snips, band and circle saws, squaring shears, seamers, bar folders, brakes, and stakes, and operating complex hand and power machines such as slip roll forming machines, box and pan brakes, rotary machines with extra forming rolls, crimpers and beading machines, and soldering and welding equipment. Ability to examine aircraft sheet metal structures to locate cracks, breaks, holes, bulges, dents, and loose or missing rivets and determine the type and extent of repairs needed to restore original strength, and to make repairs by manufacturing and installing new parts and reinforcing, patching, and replacing defective parts.