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: Sherwood George W City Airport, Detroit, MI 48233, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-194	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Sonotone sintered-plate Alkaline Nickel-Cadmium battery.
TC Nos.: A-783
Models: Frakes AviationG-73
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Sherwood George W City Airport, Detroit, MI 48233, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-232	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Sonotone CA6 (24 M320) or one Sonotone CA7 (19 cell 12H120) battery.
TC Nos.: A-2-582, A-757, A-765
Models: Raytheon Aircraft CompanyArmy AT-11, C-45 Series, C18 Series
ACO: AIR-760: Central Certification Branch CHI