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

Grand Central Aircraft CO

Named as the FAA publishes it on its approvals.

Holds 3 approved modifications, most of them for the Douglas DC-3. FAA spelling: Grand Central Aircraft Co.

Approved modifications 3 · newest first

Douglas DC-3 3
1970-06-06SA4-43 · 17-inch windows. · DC-3 Series, DC-3 Series
1960-01-01SA4-105 · Radio rack and radio compartment chair. · DC-3 Series
1960-01-01SA4-104 · Incorporation of C-47 type cargo door and floors. · DC-3 Series

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.