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: Economy Helicopters 2108 W. Washington Ave., Yakima, WA 98901, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH4-826	Status: Historical	App Date:	Rev Date:
Description: Franklin 6V-335-AIA engine.
TC Nos.: 2H1, 2H3, H-1
Models: Bell Helicopter Textron47 Series, 47 Series, 47 Series
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Economy Helicopters 2108 W. Washington Ave., Yakima, WA 98901, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH4-826	Status: Current	App Date:	Rev Date: 01/01/1960
Description: Franklin 6V-335-AIA engine.
TC Nos.: 2H1, 2H3, H-1
Models: Bell Helicopter Textron47 Series, 47 Series, 47 Series
ACO: AIR-770: West Certification Branch SEA