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: Southern Ohio Avn Sales Co Box 97 Montgomery County Arpt, W. Carrollton, OH 44615, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA459EA	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Conversion to Model 500B.
TC Nos.: 6A1
Models: Twin Commander Aircraft Corporation500 Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Southern Ohio Avn Sales Co Box 97 Montgomery County Arpt, W. Carrollton, OH 44615, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA459EA	Status: Historical	App Date:	Rev Date:
Description: Conversion to Model 500B.
TC Nos.: 6A1
Models: Twin Commander Aircraft Corporation500 Series
ACO: Chicago ACO Branch, Tel: +1 (847) 294-7358