The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. We do not provide access to STC engineering. For that you need to contact the STC holder directly. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 3

STC Holder: Bob or Barbara Williams Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1148SW	Status: Current	App Date: 04/20/1970	Rev Date: 04/27/1984
Description: Installation of aileron drooping
TC Nos.: 3A24
Models: The Cessna Aircraft CompanyA185E
ACO: AIR-760: Central Certification Branch WI

STC Holder: Bob or Barbara Williams Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1275NW	Status: Current	App Date: 06/11/1981	Rev Date: 08/31/1988
Description: Installation of a Hartzell HC-C2YL-1BF/F7663A-4 propeller on a Lycoming O-320-E2A engine
TC Nos.: 3A19
Models: Textron Aviation Inc.150H
ACO: AIR-760: Central Certification Branch WI

STC Holder: Bob or Barbara Williams Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2802WE	Status: Current	App Date: 06/14/1972	Rev Date: 04/19/1991
Description: Installation of Lycoming O-360-A1A engine, Sensenich 76EM8 propeller, modified fuel system, modified landing gear and other changes
TC Nos.: 3A19
Models: Textron Aviation Inc.150J
ACO: AIR-760: Central Certification Branch WI