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: 6

STC Holder: Airforce Turbine Service P.O. Box 146, Tynan, TX 78391, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE09144SC	Status: Current	App Date:	Rev Date: 01/18/1996
Description: Installation of an alternate gas generator case.
TC Nos.: E4EA
Models: Pratt & Whitney Canada Inc.PT6A-41, PT6A-41AG
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Airforce Turbine Service P.O. Box 146, Tynan, TX 78391, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE09286SC	Status: Current	App Date:	Rev Date: 12/05/1996
Description: Installation of an alternate gas generator case.
TC Nos.: E4EA
Models: Pratt & Whitney Canada Inc.PT6A-114, PT6A-114A, PT6A-116, PT6A-135, PT6A-135A, PT6A-34, PT6A-34AG, PT6A-34B, PT6A-36
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Airforce Turbine Service P.O. Box 146, Tynan, TX 78391, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE09413SC	Status: Current	App Date:	Rev Date: 12/23/1998
Description: Install modified gas generator module.
TC Nos.: E4EA
Models: Pratt & Whitney Canada Inc.PT6A-41
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Airforce Turbine Service 11557 Hwy. 359, Mathis, TX 78368, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE11139SC	Status: Current	App Date: 10/10/2010	Rev Date: 07/21/2014
Description: The conversion of the Pratt & Whitney Canada, Model PT6A-135 to a PT6A-135A turboprop engine
TC Nos.: E4EA
Models: Pratt & Whitney Canada Corp.PT6A-135
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Airforce Turbine Service P.O. Box 146, Tynan, TX 78391, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE7677SW	Status: Current	App Date:	Rev Date: 12/01/1989
Description: Modifiy the P&W Canada PT-6A-27, -28, -15AG to the PT6A-34 configuration.
TC Nos.: E4EA
Models: Pratt & Whitney Canada Inc.PT6A-15AG, PT6A-27, PT6A-28
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Airforce Turbine Service P.O. Box 146, Tynan, TX 78391, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE8319SW	Status: Current	App Date:	Rev Date: 03/12/1992
Description: Conversion of P&W Canada PT6A-15AG to PT6A-27 model configuration.
TC Nos.: E4EA
Models: Pratt & Whitney Canada Inc.PT6A-15AG
ACO: AIR-760: Central Certification Branch FTW