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: 2

STC Holder: Robert L. or Barbara V. Williams Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA175GL	Status: Current	App Date: 09/08/1976	Rev Date: 04/06/1989
Description: Installation of conventional landing gear
TC Nos.: 3A19
Models: Cessna Aircraft Company150, 150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L, 150M, 152, A150K, A150L, A150M, A152
ACO: AIR-760: Central Certification Branch WI

STC Holder: Robert L. or Barbara V. Williams Box 608, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA315GL	Status: Current	App Date: 03/17/1979	Rev Date: 04/13/1982
Description: Installation of Fluidyne skis.
TC Nos.: 3A12
Models: Cessna Aircraft Company172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172I, 172K, 172L, 172M, 172N
ACO: AIR-760: Central Certification Branch WI