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: Construction Helicopters, Inc 807 Willow Run Airport, Ypsilanti, MI 48198, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00889CH	Status: Current	App Date:	Rev Date: 06/03/1998
Description: Reduction of standard passenger seating from sixteen to nine seats or less.
TC Nos.: 1H11
Models: Sikorsky Aircraft CorporationS-58JT
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Construction Helicopters, Inc 3679 Bowen Rd., Howell, MI 48855, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR03179CH	Status: Current	App Date: 11/19/2012	Rev Date: 01/11/2013
Description: Removal of passenger seating to achieve nine passenger configuration
TC Nos.: H4EU
Models: Eurocopter FranceAS332L1
ACO: AIR-760: Central Certification Branch CHI