3 S Engineering
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As a designated ODA by the Federal Aviation Administration (FAA), 3S specializes in aerospace engineering design, analysis, and certification of aircraft modifications, and issuance STCs. Our clients enjoy far less aircraft down-time and improved project speed to market. Our team of trained and experienced design engineers can assist in the completion of your project requiring integrated avionics, WiFi, AirText or any other aircraft modification.

If you need any equipment installed on an aircraft that requires an STC, 3S is your partner in ensuring the most efficient and quickest path to FAA certification.
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A wholly owned subsidiary of Sierra Nevada Corporation (SNC), 3S Engineering and 3S Certification is based in Wichita, Kansas. Known as the "Air Capital of the World" due to the city's history as the hub of United States aircraft production, our central, convenient location has the added benefit of many accomplished aircraft professionals who call the area home.
If you need equipment installed on an aircraft that requires a Supplemental Type Certificate (STC), then an Organization Designation Authorization (ODA) program can save you time and expedite your product to market. As a Federal Aviation Administration (FAA) designated ODA, 3S Engineering and 3S Certification is your partner to ensure the most efficient and quickest path to FAA certification.
Are you looking to complete aircraft modifications or have a project requiring integrated avionics systems? The team at 3S Engineering and 3S Certification is highly experienced and efficient in providing engineering design and compliance data development, as well as Unit Member (UM) support for Federal Aviation Administration (FAA) approvals.
As the aviation industry continues to grow and push forward, you may desire to upgrade or modify your existing aircraft. 3S Engineering and 3S Certification is a Supplemental Type Certificate (STC) provider. We own and maintain several STCs and also offer a "turnkey" solution that ensures the fastest path to completion and certification.
3S Certification specializes in engineering design for aircraft modification and integrations in addition to the issuance of Supplemental Type Certificates (STCs).

Clients from the airplane, rotorcraft and military/special missions industries include Original Equipment Manufacturers (OEMs) who are seeking support for new aircraft upgrades or "one off" modifications and Maintenance, Repair and Operations (MRO) companies who are seeking support for avionics or cabin upgrades.
Reviews (3)
Steve
Steve
Aug 01, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
Great leadership over the last two years. Best ODA and design team in the world. This highly skilled group can do anything.
Bob G.
Bob G.
Jul 28, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
Great leadership and team. Amazing job on my large design and cert project. Other engineering design and cert firms said it was too hard.
Steve D.
Steve D.
Jul 28, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
Since Brian has been over 3S it’s the best aircraft company. Great vision, strategy and drive for success. There is nothing this team can’t do.