At Spirit, we partner with our customers to design, build and sustain the world’s aircraft.

Spirit AeroSystems may be best known for building the fuselage of the Boeing 737. But we do far more.

We specialize in designing and building large aerostructures, including fuselages, propulsion and underwing products, and wing structures, on both commercial and defense programs. And we employ thousands of experienced specialists in aerostructures engineering, manufacturing, service and support.

Our technology and engineering capabilities, combined with our capacity for high-volume production, have positioned Spirit AeroSystems as a leading aerostructures supplier to both Airbus and Boeing. Our affordability in materials, processes and tools also makes us a natural fit for defense programs. We currently have design and/or manufacturing responsibility on defense projects for Boeing, Sikorsky and Bell Helicopter.

1301457-020Drawing on talent across the globe, Spirit AeroSystems is an industry leader in aerospace engineering. As a world-class research and development business, we can work alongside OEMs on their new product development. The ability to design, modify and continually improve components allows us to pass on benefits — such as strength-to-weight advantages and lower costs — to our customers.

  • We design aerostructures in both metallic and composite materials. We can meet multiple customer requirements on both commercial and military programs.
  • We can support design through all phases of an aerospace program from concept to completion. Unlike some suppliers that only build to print, we deliver total program capability.
  • Our capabilities include product development, integrity and certification; stress engineering; tooling design; precision measurement and program management.
  • We provide airlines with engineering services through our Global Customer Support & Services organization.
  • We are an accredited provider of measurement and test equipment calibration, testing, repair and engineering technical services. Customers may use our testing and metrology laboratories to design mechanical-dimensional test fixtures and develop measurement applications.


Our build portfolio includes fuselages, large wing structures, engine nacelles, pylons, fan cowls, thrust reversers and systems integration. We produce both composite and metallic assemblies.

  • Composites manufacturing. Spirit is the industry leader in composites manufacturing. With more than 30 autoclaves, including several of the largest autoclaves in the world, we can meet high-capacity production demands. For customers who require innovative solutions, we have developed the ability to fabricate composite structures using out-of-autoclave infusion technology.
  • Metallic manufacturing and assembly. Our capabilities include complex machining, sheet metal, tubing fabrication and installation, and more.
  • Precision assembly. Using Spirit Exact™ technology, we design and install production systems that require fewer tools, thereby lowering costs and reducing time to assemble components. We were the first supplier to offer precision detail assembly on the Boeing 737 Next-Generation program.
Fleet SupportOur capabilities don’t end with engineering and manufacturing. We sustain airline fleets in the field by providing maintenance, repair and overhaul services, aftermarket engineering services and spare parts. Find out more about Spirit AeroSystems Global Customer Support & Services.

In addition to producing aerostructures for commercial aircraft, Spirit designs, engineers and manufactures structural components for military programs. We have been awarded a significant amount of work for Boeing’s P-8, C-40 and KC-46 Tanker, all of which are commercial aircraft modified for military use. We are also involved in the development of the Sikorsky CH-53K and Bell Helicopter V-280 tiltrotor. Spirit has invested heavily in research and development labs that enable us to deliver innovation and value on defense programs.