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

Courtesy Air Service, INC

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Beechcraft TC-45. FAA spelling: Courtesy Air Service, Inc.

Approved modifications 1 · newest first

Beechcraft TC-45 1
1975-02-21SA4-383 · Metalized control surfaces replacing fabric covered surfaces. · Army AT-11, C18 Series, TC-45H

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.