As required, assist assembly, heat treat, machine and weld shops, inspection or other functions and groups with operations relating to or involving rocket fabrication, rework, set up and assembly, and fabrication and preparation of details, parts or other items to be brazed, welded, heat treated, or modified. Working to close tolerances, perform complex and difficult fabrication operations to form, fit, fabricate, repair and test a variety of complicated production and developmental space propulsion details, precision parts, assemblies and related tools.