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: Acorn Welding Ltd. 10916 119th St, Edmonton, Alberta T5H 3P4, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA00780NY	Status: Current	App Date: 12/04/1997	Rev Date: 05/03/2013
Description: The installation, removal, and maintenance of Acorn Welding s Heat Exchanger/Muffler (P/N: C1851D, C1851D-1, or C1851D-3)
TC Nos.: 3A13, 5A6
Models: Cessna Aircraft Company180G, 180H, 180J, 180K, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, 182S
ACO: AIR-750: East Certification Branch NY

STC Holder: Acorn Welding Ltd. 12105-120 Avenue, Edmonton, Alberta, T5L 4K4, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA00780NY	Status: Historical	App Date:	Rev Date: 01/16/1998
Description: Installation of Acorn Welding Heat Exchanger/Muffler. (180K and 182R with O470 engine, 185 S/N 0001 and on)
TC Nos.: 3A13, 3A24, 5A6
Models: The Cessna Aircraft Company180G, 180H, 180J, 180K, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, 182S, 185
ACO: New York ACO Branch, Tel: +1 (516) 228-7300

STC Holder: Acorn Welding Ltd. 10916 119th St, Edmonton, Alberta T5H 3P4, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA01580NY	Status: Current	App Date: 11/06/2002	Rev Date: 01/31/2003
Description: Replace existing front fuselage strut assemblies with Amtech Aeronautical Ltd strut assembly - front fuselage 302811-1 (LHS) and 302811-2 (RHS).
TC Nos.: A-806
Models: de Havilland Inc. (Canada)DHC-2 Mk.I, DHC-2 Mk.II, DHC-2 Mk.III
ACO: AIR-750: East Certification Branch NY

STC Holder: Acorn Welding Ltd. 10916 119th St, Edmonton, Alberta T5H 3P4, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA01580NY	Status: Historical	App Date: 11/06/2002	Rev Date: 01/07/2003
Description: Replace existing front fuselage strut assemblies with Amtech Aeronautical Ltd strut assembly - front fuselage 302811-1 (LHS) and 302811-2 (RHS).
TC Nos.: A-806
Models: de Havilland Inc. (Canada)DHC-2 Mk.I, DHC-2 Mk.II, DHC-2 Mk.III
ACO: New York ACO Branch, Tel: +1 (516) 228-7300

STC Holder: Acorn Welding Ltd. 10916 119th St, Edmonton, Alberta T5H 3P4, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA02854NY	Status: Current	App Date: 02/15/2010	Rev Date: 03/14/2018
Description: Gross weight increase for use with floats to be accomplished
TC Nos.: 3A13
Models: Textron Aviation Inc.182P, 182Q, 182R
ACO: AIR-750: East Certification Branch NY

STC Holder: Acorn Welding Ltd. 10916 119th St, Edmonton, Alberta T5H 3P4, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA04126NY	Status: Current	App Date: 02/13/2018	Rev Date: 04/26/2018
Description: Installation of Firewall Reinforcement
TC Nos.: 3A13, A42EU
Models: Cessna Aircraft CompanyF182P, F182Q Textron Aviation Inc.182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, 182S, 182T, T182, T182T
ACO: AIR-750: East Certification Branch NY

STC Holder: Acorn Welding Ltd. 10916 119th St, Edmonton, Alberta T5H 3P4, Canada		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA04587NY	Status: Current	App Date: 08/27/2021	Rev Date: 10/28/2021
Description: Installation of Acorn Welding C6SC1107-NG Exhaust stacks
TC Nos.: A9EA
Models: Viking Air LimitedDHC-6-100, DHC-6-200, DHC-6-300, DHC-6-400
ACO: AIR-750: East Certification Branch NY

STC Holder: Acorn Welding Ltd. 10916 119th Street Edmonton, Alberta, T5H 3P4		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA12284IB	Status: Current	App Date: 10/30/2022	Rev Date: 02/18/2026
Description: Installation of Bulkhead Reinforcing Kit
TC Nos.: 3A13
Models: Textron Aviation Inc.182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, R182, T182, TR182
ACO: AIR-730: International Validation Branch