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

Rubbert Randy

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Piper PA-19. FAA spelling: Rubbert Randy.

Approved modifications 2 · newest first

Piper PA-19 1Piper PA-18 Super Cub 1Piper/Cub Crafters PA-18 1
2011-11-17SA03035CH · Installation of new lower cowling and new air box assembly in accordance with Installation Instructions Doc. No.... · PA-18, PA-18-105 (Special), PA-18-125 (Army L-21A)
1993-07-23SA90CH · Installation of EDO Model 89-2000 or 89A-2000 floats. · PA-18-"150"

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.