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Clients Benefit from Our Unique Experience and Expertise

A subsidiary of Sierra Nevada Corporation (SNC) and fully authorized by the Federal Aviation Administration (FAA), 3S Engineering and
3S Certification specializes in engineering design for aircraft modification and integrations in addition to the issuance of Supplemental Type Certificates (STCs).

A Proven Track Record with Major Aerospace Companies

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.

…enjoy working with our customers and the ideas they bring
I enjoy working with our customers and the ideas they bring to aviation. I'm pleased when we can show them how 3S can provide the results they're looking for. With 3S's capabilities as an ODA and with our engineering services, we're in the position to bring our customers’ products to the marketplace quickly and efficiently. Mark Dannar, Business Development Manager
Experts in Aircraft Modification and Certification Requirements

Please contact us to schedule a complimentary consultation.

Contact 3S