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: Vapor Heating Corp 6444 West Howard St., Chicago, IL 60607, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-665	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Cabin air temperature control system on Southwind (Stewart- Warner) 8240-A heater.
TC Nos.: 3A10
Models: The Cessna Aircraft Company310 Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Vapor Heating Corp 6444 West Howard St., Chicago, IL 60607, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-721	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Cabin temperature control system with Janitrol S-25 heater.
TC Nos.: 2A4, 6A1
Models: Twin Commander Aircraft Corporation500, 520, 560, 680
ACO: AIR-760: Central Certification Branch CHI