The STC search system is a complimentary service provided to the aviation community. We hope you find it useful. Our primary product is a comprehensive library of aviation regulations and standards, including tools for generating Airworthiness Directive compliance reports.

No. of STCs: 13

STC Holder: Western Skyways Inc. 140 Industrial Drive, Burlington, WI 53105, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA04211CH	Status: Historical	App Date: 09/25/2016	Rev Date: 07/20/2017
Description: The installation of a turbo normalize Continental engine IO 520 and IO-550
TC Nos.: 3A21, A16CE, A4CE
Models: Textron Aviation Inc.206, 207, 207A, 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M, 210N, 210R, P206, P206A, P206B, P206C, P206D, P206E, T207, T207A, T210F, T210G, T210H, T210J, T210K, T210L, T210M, T210N, TP206A, TP206B, TP206C, TP206D, TP206E, TU206A, TU206B, TU206C, TU206D, TU206E, TU206F, TU206G, U206, U206A, U206B, U206C, U206D, U206E, U206F, U206G
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Western Skyways Inc. 1865 Launa, Montrose, CO 81401, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA09007SC	Status: Historical	App Date:	Rev Date: 05/03/2001
Description: Installation of Teledyne Continental TSIO-520-VB engines in place of existing Teledyne Continental TSIO-520-EB engines.
TC Nos.: A7CE
Models: The Cessna Aircraft Company401A, 401B, 402A, 402B
ACO: Denver ACO Branch, Tel: +1 (303) 342-1080

STC Holder: Western Skyways Inc. 1865 Launa, Montrose, CO 81401, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA09007SC	Status: Current	App Date: 05/26/1994	Rev Date: 09/15/2008
Description: Installation of Teledyne Continental TSIO-520-VB engines in place of existing Teledyne Continental TSIO-520-EB engines.
TC Nos.: A7CE
Models: The Cessna Aircraft Company401A, 401B, 402A, 402B
ACO: AIR-770: West Certification Branch DEN

STC Holder: Western Skyways Inc. 9 S. 150 Stearman Drive, Naperville, IL 60564, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8676SW	Status: Historical	App Date: 04/30/1992	Rev Date: 10/30/2013
Description: Installation of STC SE8677SW modified turbonormalized Continental IO-520-B, IO-520-BA, IO-520-BB, or IO-550-B engine.
TC Nos.: 3A15
Models: Beechcraft Corporation35-C33A, 36, A36, E33A, F33A, S35, V35, V35A, V35B
ACO: Chicago ACO Branch, Tel: +1 (847) 294-7358

STC Holder: Western Skyways Inc. 21 Creative Place, Montrose, CO 81401, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8676SW	Status: Historical	App Date: 04/30/1992	Rev Date: 07/26/2010
Description: Installation of STC SE8677SW modified turbonormalized Continental IO-520-B, IO-520-BA, IO-520-BB, or IO-550-B engine.
TC Nos.: 3A15
Models: Beechcraft Corporation35-C33A, 36, A36, E33A, F33A, S35, V35, V35A, V35B
ACO: Denver ACO Branch, Tel: +1 (303) 342-1080

STC Holder: Western Skyways Inc. 1865 Launa, Montrose, CO 81401, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8676SW	Status: Historical	App Date: 04/30/1992	Rev Date: 11/27/2000
Description: Installation of a turbonormalized Continental IO-520-B, -BA, or -BB engine.
TC Nos.: 3A15
Models: Raytheon Aircraft CompanyF33A, S35, V35, V35A, V35B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Western Skyways Inc. 7805 Karl May Drive, Waco, TX 76708, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8676SW	Status: Historical	App Date: 04/30/1992	Rev Date: 06/06/2005
Description: Installation of STC SE8677SW modified turbonormalized Continental IO-520-B, IO-520-BA, IO-520-BB, or IO-550-B engine.
TC Nos.: 3A15
Models: Raytheon Aircraft Company36, A36, F33A, S35, V35, V35A, V35B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Western Skyways Inc. 140 Industrial Drive, Burlington, WI 53105, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8676SW	Status: Current	App Date: 04/30/1992	Rev Date: 03/15/2017
Description: Installation of STC SE8677SW modified turbonormalized Continental IO-520-B, IO-520-BA, IO-520-BB, or IO-550-B engine.
TC Nos.: 3A15
Models: Beechcraft Corporation35-C33A, 36, A36, E33A, F33A, S35, V35, V35A, V35B
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Western Skyways Inc. 7805 Karl May Drive, Waco, TX 76708, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA8676SW	Status: Historical	App Date: 04/30/1992	Rev Date: 09/13/2007
Description: Installation of STC SE8677SW modified turbonormalized Continental IO-520-B, IO-520-BA, IO-520-BB, or IO-550-B engine.
TC Nos.: 3A15
Models: Hawker Beechcraft Corporation35-C33A, 36, A36, E33A, F33A, S35, V35, V35A, V35B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Western Skyways Inc. 140 Industrial Drive, Burlington, WI 53105, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE0417CH	Status: Historical	App Date: 09/25/2016	Rev Date: 02/06/2017
Description: Turbo-normalization
TC Nos.: E3SO, E5CE, E8CE
Models: Continental MotorsIO-520-A, IO-520-F, IO-520-J, IO-520-L, IO-550-F, IO-550-L Continental Motors IncTSIO-520-C, TSIO-520-G, TSIO-520-H, TSIO-520-M, TSIO-520-R
ACO: Chicago ACO Branch, Tel: +1 (847) 294-7358

STC Holder: Western Skyways Inc. 1865 Launa, Montrose, CO 81401, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE8677SW	Status: Historical	App Date: 04/30/1992	Rev Date: 11/27/2000
Description: Installation of Garrett TE-0670 turbocharger (P/N 406610-9029).
TC Nos.: E5CE
Models: Teledyne Continental MotorsIO-520-B, IO-520-BA, IO-520-BB
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Western Skyways Inc. 140 Industrial Drive, Burlington, WI 53105, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE8677SW	Status: Current	App Date: 04/30/1992	Rev Date: 03/20/2017
Description: Installation of Garrett/Airesearch Model TE0659 turbocharger
TC Nos.: E3SO, E5CE
Models: Continental MotorsIO-520-B, IO-520-BA, IO-520-BB, IO-550-B
ACO: AIR-760: Central Certification Branch CHI

STC Holder: Western Skyways Inc. 7805 Karl May Drive, Waco, TX 76708, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SE8677SW	Status: Historical	App Date: 04/30/1992	Rev Date: 09/26/2006
Description: Installation of Garrett TE-0670 turbocharger (P/N 406610-9029).
TC Nos.: E3SO, E5CE
Models: Teledyne Continental MotorsIO-520-B, IO-520-BA, IO-520-BB, IO-550-B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500