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

Aircraft Service, INC

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications. FAA spelling: Aircraft Service, Inc.

Approved modifications 2 · newest first

SA1-191 · Fuel flow meter system. · 18 Series
SA1-225 · Enlargement of top pilot window. · C18 Series, 18 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.