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

J R Engineering, INC

Named as the FAA publishes it on its approvals.

Holds 6 approved modifications, most of them for the Boeing 727. FAA spelling: J R Engineering, Inc.

Approved modifications 6 · newest first

Boeing 727 2Piper PA-32 Cherokee Six, Lance and Saratoga 1Douglas DC-8 1
1988-06-08SA2345SO · Installation of an interior. · 727-100 Series
1987-05-14SA2114SO · Installation of a hand control for the rudder. · PA-32-300
1986-11-26SA2032SO · Installation of emergency path lighting system. · DC-8-62
1984-10-26SA1638SO · Installation of 'door ajar' warning lights for the passenger door and the galley service door. · 1-11 200 Series, 1-11 400 Series
1984-07-20SA1639SO · Installation of flight attendant seat. · 1-11 200 Series, 1-11 400 Series
1984-06-26SA1632SO · Installation of seats and accommodations for 176 passengers. · 727-200 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.