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: McCoy Avionics Corp 1445 Summit Street, Columbus, OH 43201, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1343GL	Status: Current	App Date:	Rev Date: 12/02/1988
Description: Installation of the MAC 1700 modification to King Radio Corp. KX-175B/KX-170B Transceivers.
TC Nos.: 3A21
Models: The Cessna Aircraft CompanyP210N
ACO: AIR-760: Central Certification Branch CHI

STC Holder: McCoy Avionics Corp 6145 Scherers Place, Dublin, OH 43017, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1545GL	Status: Current	App Date:	Rev Date: 12/04/1991
Description: Installation of the MAC 170A frequency stability modification to King Radio Corp. KX 170A and KX 175 transceivers.
TC Nos.: A13CE
Models: The Cessna Aircraft Company177, 177A, 177B
ACO: AIR-760: Central Certification Branch CHI