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

Heyworth Eugene

Named as the FAA publishes it on its approvals.

Holds 4 approved modifications, most of them for the Cessna 177 Cardinal. FAA spelling: Heyworth Eugene.

Approved modifications 4 · newest first

2001-08-22SA00958SE · Manufacture and installation of audio control panel in accordance with wiring diagrams, specifications, and... · 177
2000-08-04SA5697NM · Repair of upper hinge on the cabin door. · 177, 177A, 177B
1999-05-17SA4359NM · Installation of redesigned upper door hinge pin and retainer. · 177B, 177A, 177
1992-03-20SA5696NM · Repair of the Cabin Door lower hinge · 177

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.