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

Fine Line Designs

Holds 2 approved modifications. FAA spelling: Fine Line Designs.

Approved modifications 2 · newest first

2001-01-02SP00177SE · Replacement of the engine oil actuated diaphragm and servo valve system for controlling propeller pitch, with one... · HC-12X, HC-12V
2001-01-02SA00176SE · Installation of FLD-100C self contained hydraulic propeller pitch change system. · A35, 35

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.