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: Sheridan Flying Service PO Box 237, Sheridan, OR 97378, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1230NW	Status: Current	App Date: 04/21/1981	Rev Date: 05/11/1981
Description: Conversion from a tricycle landing gear to tailwheel/dual main gear configuration
TC Nos.: 3A13
Models: Cessna Aircraft Company182B
ACO: AIR-770: West Certification Branch SEA

STC Holder: Sheridan Flying Service PO Box 237, Sheridan, OR 97378, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1247NW	Status: Current	App Date: 03/15/1981	Rev Date: 05/29/1981
Description: Installation of a redesigned instrument panel with center stack radios and a "U" shaped control yoke
TC Nos.: 5A6
Models: Cessna Aircraft Company180
ACO: AIR-770: West Certification Branch SEA

STC Holder: Sheridan Flying Service PO Box 237, Sheridan, OR 97378, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA620NW	Status: Current	App Date: 05/19/1978	Rev Date: 06/15/1978
Description: Installation of a Lycoming O-360-A3A engine (180 HP @ 2700 rpm), Sensenich M76ENM-O-60 propeller and associated systems
TC Nos.: 3A12
Models: Cessna Aircraft Company172K
ACO: AIR-770: West Certification Branch SEA