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

Robertson Aircraft CORP

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Cessna T210 Turbo Centurion. FAA spelling: Robertson Aircraft Corp.

Approved modifications 2 · newest first

Cessna T210 Turbo Centurion 1Cessna 180 Skywagon 1Cessna 177 Cardinal 1Cessna 175 Skylark 1Cessna 172 Skyhawk 1Cessna 150 1
1979-10-30SA854NW · Installation of droop aileron system, stall fences and stall strips · T210N
1978-04-02SA1431WE · Installation of rudder trim system. · 172H (USAF T-41A), 172M, 172

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.