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

Jefferson Financial CO

Holds 6 approved modifications, most of them for the Aerospatiale/Aeritalia ATR 42. FAA spelling: Jefferson Financial Co.

Approved modifications 6 · newest first

Aerospatiale/Aeritalia ATR 42 6
1998-09-18ST00235NY-D · Installation of Dual Honeywell GPIRS Inertial Reference Systems with Honeywell Lasertrak Navigation System. · ATR-42 Series
1998-09-18ST00250NY-D · Installation of a power conversion system. · ATR-42 Series
1998-09-18ST00234NY-D · Installation of Single Honeywell FMZ-800 Flight Management System. · ATR-42 Series
1998-09-18ST00252NY-D · Installation of Inmarsat Communications system. · ATR-42 Series
1998-09-18ST00316NY-D · Installation of single camera system DLLI. · ATR42-320
1998-09-18ST00251NY-D · Installation of a cabin audio system. · ATR-42 Series

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.