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

Quiet Wing Corporation

Named as the FAA publishes it on its approvals.

Holds 5 approved modifications, most of them for the Boeing 727. FAA spelling: Quiet Wing Corporation.

Approved modifications 5 · newest first

Boeing 727 4Boeing 737 1
2019-09-25ST01535SE · Incorporation of certain modifications in the aileron and flap systems. · 737-200 Series
2018-09-25ST00507SE · Modification of certain Boeing Model 727-200 · 727-200 Series
2018-09-25ST00384SE · Modification of the neutral settings of the inboard and outboard ailerons and aft flap segments. · 727 Series
2018-09-25SA5938NM · Installation of winglets, associated changes in flap and aileron positions and rigging, and related changes to the... · 727-100 Series, 727-100C Series, 727-200 Series
2018-09-25ST00488SE · Modification of certain Boeing Model 727-100 series airplanes · 727-100 Series

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.