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: 9

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00314AT	Status: Current	App Date: 05/13/1993	Rev Date: 02/25/2022
Description: Installation of engine firewall in Hughes 369 model helicopter
TC Nos.: H3WE
Models: MD Helicopter Inc.369 Series, 369D, 369E, 369FF, 369H, 369HM, 369HS, 500N, 600N
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00450AT	Status: Current	App Date: 01/07/1994	Rev Date: 02/25/2022
Description: Installation of a seat pan inspection panel.
TC Nos.: H3WE
Models: MD Helicopter Inc.369 Series, 500N, 600N
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00823AT	Status: Current	App Date: 02/02/1995	Rev Date: 02/25/2022
Description: This modification will allow the installation or rear extended cabin step
TC Nos.: H3WE
Models: MD Helicopter Inc.369 (Army YOH-6A)
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00829AT	Status: Current	App Date: 02/02/1995	Rev Date: 02/25/2022
Description: Installation of front extended cabin step.
TC Nos.: H3WE
Models: MD Helicopter Inc.369 Series
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01838AT	Status: Current	App Date: 04/07/1998	Rev Date: 02/25/2022
Description: Installation of Cyclic Friction Release Levers.
TC Nos.: 4H12
Models: Schweizer Aircraft Corporation269 Series
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510 USA		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01839AT	Status: Current	App Date: 04/10/1998	Rev Date: 02/25/2022
Description: Installation of cyclic friction levers
TC Nos.: H3WE
Models: MD Helicopters LLC369, 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR02859AT	Status: Current	App Date: 04/14/2003	Rev Date: 02/25/2022
Description: Installation of Part Number 369HT21004 main rotor hub fairing as a direct replacement for OEM Part Number 369D21004-11 (BSC)
TC Nos.: H3WE
Models: MD Helicopter Inc.369D, 369E, 369FF, 500N
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR03265AT	Status: Current	App Date: 02/02/2004	Rev Date: 02/25/2022
Description: Modification of engine gearbox breather system by the installation of Heli-Tech "HT800-Engine Gearbox Breather Kit", P/N HT800
TC Nos.: H3WE
Models: MD Helicopters Inc.369A, 369D, 369E, 369H, 369HE, 369HM, 369HS, 500N
ACO: AIR-750: East Certification Branch ATL

STC Holder: Thoroughbred Aviation Maintenance Inc 4316 Hangar Drive, Lexington, KY 40510, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR04175AT	Status: Current	App Date: 11/12/2013	Rev Date: 02/25/2022
Description: Installation of the HT400 Inspection Panel Kit
TC Nos.: H3WE
Models: MD Helicopters Inc.369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS
ACO: AIR-750: East Certification Branch ATL