The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Greenwich Aircraft Corporation

Named as the FAA publishes it on its approvals.

Holds 4 approved modifications, most of them for the Douglas DC-3. FAA spelling: Greenwich Aircraft Corporation.

Approved modifications 4 · newest first

Douglas DC-3 4
2020-03-31SA7529SW · Removal of lead ballast from front and aft faces of original firewalls. · DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G
2020-03-31SA3876SW · Installation of long range fuel system. · DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G
2020-03-31SA3877SW · Installation of a bleed air activated vacuum system. · DC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G
2020-03-31SA3820SW · Installation of P&W Canada PT6A-65AR or PT6A-67R engines. · DC3A-S1C3G, DC3A-SC3G, DC3C-R-1830-90C

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.