Spirit AeroSystems, Inc. (“Spirit”), based in Wichita, Kansas, is the world’s largest first-tier aerostructures manufacturer. This video package produced in 2013 highlighted how the company builds several important pieces of Boeing Aircraft, including the fuselage of the 737, portions of the 787 fuselage, and the cockpit section of the fuselage (referred to as “Section 41” by Boeing) of nearly all its airliners. Spirit also produces fuselage sections and front wing spars for the Airbus A350.