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

Gatx-Airlog Company

Named as the FAA publishes it on its approvals.

Holds 10 approved modifications, most of them for the Boeing 747. FAA spelling: GATX-Airlog Company.

Approved modifications 10 · newest first

2008-07-08SA2605SO · Installation of a passenger interior in all-cargo Boeing aircraft. · 747-100 Series
2008-07-08SA2980SO · Intallation of upper deck galley. · 747-100 Series, 747-200 Series
2008-07-08SA4224NM-D · Structural modification to stretched aft upper deck. (747-122) · 747
2008-07-08SA2323SO · Installation of a class 'E' cargo compartment. · 747-100 Series
2008-07-08SA4196NM-D · Conversion of a passenger airplane with side cargo door to a freighter configuration. · 747-100 Series
2008-07-08SA4227NM-D · Conversion of a passenger airplane to a freighter configuration with a side-cargo door. · 747-200B Series
2008-07-08SA2322SO · Installation of a cargo door. · 747-100 Series
1998-07-22ST00105LA-D · Conversion of passenger airplane with side cargo door (Combi configuration) to a freighter configuration. · 747-200B Series
1995-04-27SA5759NM · Increase maximum zero fuel Weight. · 747-200 Series
1991-12-19SA5199NM · Increase maximum zero fuel Weight. · 747-100 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.