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: Clark John J 305 N. Owen St., Mt. Prospect, IL 60056, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-436	Status: Current	App Date:	Rev Date: 01/01/1960
Description: AiResearch cowling vent doors.
TC Nos.: A-669
Models: McDonnell Douglas CorporationDC-3 Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Clark John J 305 N. Owen St., Mt. Prospect, IL 60056, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-441	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Main landing gear.
TC Nos.: A-2-582
Models: Raytheon Aircraft CompanyArmy AT-11
ACO: AIR-760: Central Certification Branch CHI