Heck Research LLC
Named as the FAA publishes it on its approvals.
Holds 2 approved modifications, most of them for the Hiller UH-12. FAA spelling: Heck Research LLC.
Approved modifications 2 · newest first
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.