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: 4

STC Holder: Air Tractor Inc P.O. Box 485, Olney, TX 76374, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE09029SC	Status: Current	App Date:	Rev Date: 04/05/1995
Description: Install chip detector system on P&W R-1240 series engines.
TC Nos.: E-129, E-142, E-143
Models: Pratt & Whitney DivisionR-1340-59, Wasp S1H1, Wasp S3H1
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Air Tractor Inc P.O. Box 485, Olney, TX 76374, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE8652SW	Status: Current	App Date: 06/16/1993	Rev Date: 10/10/2007
Description: Installation of a flexible hose from the Propeller Primary Governor to the Fuel Control Unit.
TC Nos.: E26NE, E4EA
Models: Pratt & Whitney Canada Corp.PT6A-45R, PT6A-60AG, PT6A-65AG, PT6A-65AR, PT6A-65B, PT6A-65R, PT6A-67AF, PT6A-67AG, PT6A-67F, PT6A-67R
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Air Tractor Inc P.O. Box 485, Olney, TX 76374, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE8652SW	Status: Historical	App Date: 06/16/1993	Rev Date: 01/28/1997
Description: Installation of a flexible hose from the Propeller Primary Governor to the Fuel Control Unit.
TC Nos.: E26NE, E4EA
Models: Pratt & Whitney Canada Inc.PT6A-45R, PT6A-60AG, PT6A-65AG, PT6A-65AR, PT6A-65B, PT6A-65R, PT6A-67AG, PT6A-67B, PT6A-67R
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Air Tractor Inc P.O. Box 485, Olney, TX 76374, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE8827SW	Status: Current	App Date:	Rev Date: 03/28/1994
Description: Modification to exhaust duct P/N 3109946-01.
TC Nos.: E26NE
Models: Pratt & Whitney Canada Inc.PT6A-67
ACO: AIR-760: Central Certification Branch FTW