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

Northwest Heli-Structures INC

Holds 2 approved modifications, most of them for the Bell 212. FAA spelling: Northwest Heli-Structures Inc.

Approved modifications 2 · newest first

2019-05-03SR02641SE · Installation of a Service Deck · UH-1H, UH-1H, UH-1H
2019-05-03SR02640SE · Installation of a Service Deck · 212, 412

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.