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

Robek Bill

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Piper/Cub Crafters PA-18. FAA spelling: Robek Bill.

Approved modifications 1 · newest first

Piper/Cub Crafters PA-18 1
1974-08-07SA526AL · Build up 1-1/4-inch axle to 1-1/2-inch axle to install Celveland wheel and brake. · PA-18 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.