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

Piedmont Avn Services, INC

Holds 3 approved modifications, most of them for the Beechcraft 1900 Airliner. FAA spelling: Piedmont Avn Services, Inc.

Approved modifications 3 · newest first

Beechcraft 1900 Airliner 2
1995-06-26ST00791AT · Modification to the right hand engine start circuit to keep the cockpit instrumentation from dropping out during... · 2000
1995-06-15SA00776AT · Installation of a Dual Bendix/King Mode S Transponder, Traffic Alert and Collision Avoidance System and Sundstrand... · 200 (A100-1 (U-21J)), 300, 1900
1995-06-15SA00775AT · Installation of a Bendix/King KLN90B Global Positioning System. · 1900C (C-12J), 1900D, 1900

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.