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: William F. Hubler 5703 Hubler Lane, Caldwell, ID 83605, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4713NM	Status: Current	App Date: 03/29/1989	Rev Date: 03/05/1998
Description: Install an Allied Signal TPE331-1-151A, -151G, or -151K turboprop engine operated at TPE 331-43-A ratings to replace the Garrett TPE331-43-A turboprop engine installed under STC No SA4369NM
TC Nos.: A4SW
Models: Thrush Aircraft Inc.S-2R
ACO: AIR-770: West Certification Branch SEA

STC Holder: William F. Hubler 5703 Hubler Lane, Caldwell, ID 83605, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA5940NM	Status: Current	App Date: 01/06/1993	Rev Date: 03/05/1998
Description: Install an Allied Signal TPE331-1-151A, -151G, or -151K turboprop engine operated at TPE331-43-A ratings to replace the Garrett TPE331-43-A turboprop engine installed under STC No SA3071NM
TC Nos.: A4SW
Models: Thrush Aircraft Inc.S-2R
ACO: AIR-770: West Certification Branch SEA