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: 1

STC Holder: Robert L & Barbara V Willia,s 117 E First, Udall, KS 67146, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA777CE	Status: Current	App Date: 04/12/1971	Rev Date: 01/19/1982
Description: Installation of Lycoming 180 hp engine and a Hartzell HC-C2YK-1A/766A-2 propeller.
TC Nos.: 3A17
Models: The Cessna Aircraft Company175, 175A, 175B, 175C, P172D, R172E (USAF T-41B)
ACO: AIR-760: Central Certification Branch WI