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

Aetna Helicopters INC

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Bell 47. FAA spelling: Aetna Helicopters Inc.

Approved modifications 1 · newest first

Bell 47 1
1957-06-28SH4-235 · Installed Franklin model 6V-335-A engine restricted to 200 hp. · 47G

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.