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

Technical Air Services

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Boeing 747. FAA spelling: Technical Air Services.

Approved modifications 2 · newest first

Boeing 747 1Boeing 727 1
1984-07-01SA1651NM · Passenger seat center armrest executive telephone handset. · 747
1984-07-01SA1652NM · Passenger seat center armrest executive telephone handset. · 727

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.