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: Northwestern Aeronautical Co 6801-34th Ave. South Wold Chamberlain Fld, Minneapolis, MN 55401, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-199	Status: Current	App Date:	Rev Date: 01/01/1960
Description: High pressure oxygen cylinders, lines and regulators within fire and explosion resistant containers.
TC Nos.: A-618
Models: McDonnell Douglas CorporationDC-3 Series
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Northwestern Aeronautical Co 6801-34th Ave. South Wold Chamberlain Fld, Minneapolis, MN 55401, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3-79	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Cowl flap auxiliary actuator and cable assembly.
TC Nos.: A-669
Models: McDonnell Douglas CorporationDC-3 Series
ACO: AIR-760: Central Certification Branch CHI