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: 8

STC Holder: Helio Aircraft Association Inc 1500 E Highland Road, Waxahachie, TX 75167, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1432CE	Status: Historical	App Date: 08/10/1978	Rev Date: 10/18/2012
Description: Installation of utility door on left side of airplane
TC Nos.: 1A8
Models: Helio Aircraft LLCH-295 (USAF U10D)
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Helio Aircraft Association Inc 1500 E Highland Road, Waxahachie, TX 75167, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1481CE	Status: Historical	App Date: 03/20/1978	Rev Date: 10/18/2012
Description: Installation of Pratt & Whitney (UACL) PT6A-27 turboprop engine and Hartzell HC-B3TN-3D/T10178CH reversible propeller
TC Nos.: A4EA
Models: Helio Aircraft LLCHST-550
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Helio Aircraft Association Inc 1500 E Highland Road, Waxahachie, TX 75167, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1643CE	Status: Historical	App Date: 10/01/1979	Rev Date: 10/18/2012
Description: Installation of Lycoming IO-540-K1B5 or IO-540-K1H5 engine.
TC Nos.: 1A8
Models: Helio Aircraft LLCH-250
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Helio Aircraft Association Inc 1500 E Highland Road, Waxahachie, TX 75167, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1936CE	Status: Historical	App Date: 07/28/1982	Rev Date: 10/18/2012
Description: Installation of Lycoming TIO-540-J2B engine and Hartzell HC-E3YR-IRF/F9587A-10 propeller.
TC Nos.: 1A8
Models: Helio Aircraft LLCH-295 (USAF U10D)
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Helio Aircraft Association Inc 1500 E Highland Road, Waxahachie, TX 75167, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2130CE	Status: Historical	App Date: 04/15/1985	Rev Date: 10/18/2012
Description: Installation of window which may be opened inflight, located at forward right side window.
TC Nos.: 1A8
Models: Helio Aircraft LLCH-295 (USAF U10D)
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Helio Aircraft Association Inc 1500 E Highland Road, Waxahachie, TX 75167, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2171CE	Status: Historical	App Date: 08/12/1985	Rev Date: 10/18/2012
Description: Replacement of fiberglass main landing gear legs with aluminum parts.
TC Nos.: 1A8
Models: Helio Aircraft LLCH-700, H-800
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Helio Aircraft Association Inc 1500 E Highland Road, Waxahachie, TX 75167, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA2337CE	Status: Historical	App Date: 08/14/1984	Rev Date: 10/18/2012
Description: Repair scheme for main landing gear assemblies
TC Nos.: 1A8
Models: Helio Aircraft LLCH-250, H-295 (USAF U10D), H-391 (USAF UL-24), H-395 (USAF L-28A or U-10B)
ACO: AIR-760: Central Certification Branch FTW

STC Holder: Helio Aircraft Association Inc 113 Orville Wright Drive, Georgetown, TX 78626, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA916SO	Status: Historical	App Date: 03/03/1976	Rev Date: 03/28/2016
Description: Installation of Cessna seat rails and seats.
TC Nos.: 1A8
Models: Alliance Aircraft Group LLCH-250, H-295 (USAF U-10D), H-391B, H-395 (USAF L-28A or U-10B)
ACO: AIR-750: East Certification Branch ATL