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No. of STCs: 2

STC Holder: Robert 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.: SA296GL	Status: Current	App Date: 01/27/1978	Rev Date: 04/13/1982
Description: Convert to conventional landing gear.
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

STC Holder: Robert or Barbara Williams 213 N. Clark, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA807CE	Status: Current	App Date: 11/01/1971	Rev Date: 05/03/1990
Description: Installation of Lycoming 180 hp engine and constant speed propeller. (172P LANDPLANES)
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, 172P
ACO: AIR-760: Central Certification Branch WI