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: Momentum Aeronautics Holdings, LLC 500 L Street, Suite 200 Anchorage, AK 99501		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA12187AK	Status: Current	App Date: 05/14/2025	Rev Date: 10/29/2025
Description: Installation of Momentum Aeronautics Holdings LLC. Model 11600 Amphibious Floats
TC Nos.: A19SW
Models: Air Tractor Inc.AT-802A
ACO: AIR-778: Alaska Aviation Section ANC

STC Holder: Momentum Aeronautics Holdings, LLC 500 L Street, Suite 200 Anchorage, AK 99501		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA12386AK	Status: Current	App Date: 12/11/2026	Rev Date: 06/09/2026
Description: Increase of the engine power of the PT6A-67F engine to 1600 SHP for takeoff power and 1550 SHP for maximum continuous power
TC Nos.: A19SW
Models: Air Tractor Inc.AT-802, AT-802A
ACO: AIR-778: Alaska Aviation Section ANC

STC Holder: Momentum Aeronautics Holdings, LLC 500 L Street, Suite 200 Anchorage, AK 99501		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA12388AK	Status: Current	App Date: 07/14/2025	Rev Date: 06/08/2026
Description: Removal of engine fire detection system
TC Nos.: A37CE
Models: Textron Aviation Inc.208, 208B
ACO: AIR-778: Alaska Aviation Section ANC

STC Holder: Momentum Aeronautics Holdings, LLC 500 L Street, Suite 200 Anchorage, AK 99501		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA12389AK	Status: Historical	App Date: 07/07/2025	Rev Date: 06/09/2026
Description: Installation of Hartzell Propeller Inc. DHC-G2YF-1BFP/F8849 propeller
TC Nos.: 5A6
Models: Textron Aviation Inc.180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J
ACO: AIR-778: Alaska Aviation Section ANC