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: 6

STC Holder: Cascade Airframe Repair Inc 8500 Perimeter Road S., Seattle, WA 98108, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH2071NM	Status: Current	App Date: 03/23/1983	Rev Date: 06/30/1983
Description: Installation of a Microwave Antenna System for TV transmissions
TC Nos.: H3WE
Models: MD Helicopter Inc.369D
ACO: AIR-770: West Certification Branch SEA

STC Holder: Cascade Airframe Repair Inc 8500 Perimeter Road S., Seattle, WA 98108, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH2079NM	Status: Current	App Date: 03/25/1983	Rev Date: 07/18/1983
Description: Installation of a re-designed fuselage strut assembly (to replace Hughes P/N 369A 3019)
TC Nos.: H3WE
Models: MD Helicopter Inc.369HM
ACO: AIR-770: West Certification Branch SEA

STC Holder: Cascade Airframe Repair Inc 8500 Perimeter Road S., Seattle, WA 98108, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH4344NM	Status: Historical	App Date:	Rev Date: 01/07/1993
Description: Replace the lower and/or mid fiberglass strut leg fairings with aluminum fairings.
TC Nos.: H3WE
Models: MD Helicopter Inc.369 (Army YOH-6A), 369A (Army OH-6A), 369D, 369E, 369F, 369FF, 500N
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Cascade Airframe Repair Inc 8500 Perimeter Road S., Seattle, WA 98108, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH4909NM	Status: Historical	App Date:	Rev Date: 03/21/1990
Description: Replace the aft engine compartment heat blanket with a stainless steel firewall.
TC Nos.: H3WE
Models: MD Helicopter Inc.369 (Army YOH-6A), 369A (Army OH-6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Cascade Airframe Repair Inc 8500 Perimeter Road S., Seattle, WA 98108, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SH4909NM	Status: Historical	App Date: 12/11/1989	Rev Date: 12/17/1998
Description: Replace the aft engine compartment heat blanket with a stainless steel firewall.
TC Nos.: H3WE
Models: MD Helicopter Inc.369, 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Cascade Airframe Repair Inc 8500 Perimeter Road S., Seattle, WA 98108, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR00197SE	Status: Historical	App Date: 04/12/1995	Rev Date: 05/29/1997
Description: Addition of strug leg fairings to landing gear.
TC Nos.: H10WE
Models: Robinson Helicopter CompanyR22, R22 ALPHA, R22 BETA, R22 MARINER
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500