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

Interstate Airlines

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Douglas DC-8. FAA spelling: Interstate Airlines.

Approved modifications 2 · newest first

1988-01-08SA7326SW · Installation of dual Tracor TA7900 Omega Navigation System. · DC-8-62
1987-04-14SA2077SO · Installation of a dual DELCO carousel IV inertial navigation system. · DC-8-62

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.