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

Mcwilliams Karl D

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Piper PA-25 Pawnee. FAA spelling: McWilliams Karl D.

Approved modifications 1 · newest first

Piper PA-25 Pawnee 1
1973-05-05SA1630SW · Installation of revised exhaust system. · PA-25-235

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.