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

John O Grimm

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Piper PA-22 Tri-Pacer and Colt. FAA spelling: John O Grimm.

Approved modifications 1 · newest first

Piper PA-22 Tri-Pacer and Colt 1
1960-01-01SA145CE · APU receptacle under the right front seat to the right of battery box. · PA-22 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.