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: 3

STC Holder: Stilwell Floyd D Marsh Aviation 5060 East Falcon Dr, Mesa, AZ 85205, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3227WE	Status: Current	App Date: 03/24/1975	Rev Date: 09/17/1980
Description: Installation of an AiResearch TPE331-1-101Z, TPE331-25DA or TPE331-25FA turboprop engine.
TC Nos.: A4SW
Models: Thrush Aircraft Inc.S2R
ACO: AIR-770: West Certification Branch LA

STC Holder: Stilwell Floyd D Marsh Aviation 5060 East Falcon Dr, Mesa, AZ 85205, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3927WE	Status: Current	App Date:	Rev Date: 09/17/1980
Description: Installation of an AiResearch TPE331-1-101Z truboprop engine.
TC Nos.: A3SW
Models: Ayres CorporationS2R
ACO: AIR-770: West Certification Branch LA

STC Holder: Stilwell Floyd D Marsh Aviation 5060 East Falcon Dr, Mesa, AZ 85205, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA4127WE	Status: Current	App Date: 01/17/1977	Rev Date: 04/18/1980
Description: Installation of an AiResearch TPE331-1-101Z turboprop engine.
TC Nos.: 1A16
Models: Allied Ag Cat Productions Inc.G-164C
ACO: AIR-770: West Certification Branch LA