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: North Sound Aviation 30578 Walberg Road, Sedro Woolley, WA 98284, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1047NW	Status: Current	App Date: 10/07/1980	Rev Date: 11/12/1980
Description: Installation of an overhead skylight
TC Nos.: A-800
Models: Piper Aircraft Inc.PA-15
ACO: AIR-770: West Certification Branch SEA

STC Holder: North Sound Aviation 30578 Walberg Road, Sedro Woolley, WA 98284, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA1601NM	Status: Current	App Date: 03/18/1982	Rev Date: 04/19/1982
Description: Installation of 8.50x6 6 ply aircraft tires
TC Nos.: 3A24, 5A6
Models: Cessna Aircraft Company180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K, 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F
ACO: AIR-770: West Certification Branch SEA

STC Holder: North Sound Aviation 30578 Walberg Road, Sedro Woolley, WA 98284, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA635NW	Status: Current	App Date: 05/18/1978	Rev Date: 08/04/1978
Description: Conversion of the landing gear on Cessna 182 from a tricycle to a conventional tailwheel configuration similar to a Cessna 180
TC Nos.: 3A13
Models: Cessna Aircraft Company182
ACO: AIR-770: West Certification Branch SEA

STC Holder: North Sound Aviation 30578 Walberg Road, Sedro Woolley, WA 98284, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA998NW	Status: Current	App Date: 06/18/1980	Rev Date: 10/07/1980
Description: Installation of a McCauley 2A34C22N/S84SF-6 propeller and a McCauley D-4101 spinner on a Franklin 6A-350-C2 engine
TC Nos.: 3A12
Models: Cessna Aircraft Company172G
ACO: AIR-770: West Certification Branch SEA