Spirit AeroSystems Holdings is a company that manufactures and supplies aerostructures and aircraft components. It offers design and manufacturing of the forward, mid, and rear sections of the fuselage, horizontal and vertical stabilizers, as well as fabrication, bonding, assembly, testing, tooling, processing, engineering analysis, training, development, production, and marketing of fuselage, strut, nacelle, wing aerostructures, spare parts, etc.