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: Greenwich Aircraft Corporation 619 Van Buren Avenue, Oxford, MS 38655, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3820SW	Status: Current	App Date: 07/18/1985	Rev Date: 03/31/2020
Description: Installation of P&W Canada PT6A-65AR or PT6A-67R engines.
TC Nos.: A-669
Models: The Boeing CompanyDC3A-S1C3G, DC3A-SC3G, DC3C-R-1830-90C, DC3C-S4C4G
ACO: AIR-750: East Certification Branch ATL

STC Holder: Greenwich Aircraft Corporation 7727 Airport Road, Waco, TX 76708, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3820SW	Status: Historical	App Date: 07/18/1985	Rev Date: 12/14/1993
Description: Installation of P&W Canada PT6A-65AR or PT6A-67R engines.
TC Nos.: A-669
Models: The Boeing CompanyDC3A-S1C3G, DC3A-S4C4G, DC3C-SC3G, DC3D-R-1830-90C
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Greenwich Aircraft Corporation 7727 Airport Road, Waco, TX 76708, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3876SW	Status: Historical	App Date: 08/11/1987	Rev Date: 09/15/1993
Description: Installation of long range fuel system.
TC Nos.: A-669
Models: The Boeing CompanyDC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G, DC3D-R-1830-90C
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Greenwich Aircraft Corporation 619 Van Buren Avenue, Oxford, MS 38655, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3876SW	Status: Current	App Date: 08/11/1987	Rev Date: 03/31/2020
Description: Installation of long range fuel system.
TC Nos.: A-669
Models: The Boeing CompanyDC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G
ACO: AIR-750: East Certification Branch ATL

STC Holder: Greenwich Aircraft Corporation 7727 Airport Road, Waco, TX 76708, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3877SW	Status: Historical	App Date: 08/11/1987	Rev Date: 09/15/1993
Description: Installation of a bleed air activated vacuum system.
TC Nos.: A-669
Models: The Boeing CompanyDC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Greenwich Aircraft Corporation 619 Van Buren Avenue, Oxford, MS 38655, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA3877SW	Status: Current	App Date: 08/11/1987	Rev Date: 03/31/2020
Description: Installation of a bleed air activated vacuum system.
TC Nos.: A-669
Models: The Boeing CompanyDC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G
ACO: AIR-750: East Certification Branch ATL

STC Holder: Greenwich Aircraft Corporation 7727 Airport Road, Waco, TX 76708, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA7529SW	Status: Historical	App Date: 10/27/1988	Rev Date: 09/15/1993
Description: Removal of lead ballast from front and aft faces of original firewalls.
TC Nos.: A-669
Models: McDonnell Douglas CorporationDC3A-S1C3G, DC3A-S4C4G, DC3C-R-1830-90C (Army C-47B), DC3C-R-1830-90C (Navy R4D-6), DC3C-SC3G
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140

STC Holder: Greenwich Aircraft Corporation 619 Van Buren Avenue, Oxford, MS 38655, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA7529SW	Status: Current	App Date: 10/27/1988	Rev Date: 03/31/2020
Description: Removal of lead ballast from front and aft faces of original firewalls.
TC Nos.: A-669
Models: The Boeing CompanyDC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G
ACO: AIR-750: East Certification Branch ATL