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

William M. Berle

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Piper PA-44 Seminole. FAA spelling: William M. Berle.

Approved modifications 1 · newest first

2010-11-16SA02246LA · Installation of a flap handle extension. · 172, 172A, 172B

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.