mpleted STC # ST02371LA Removed Pratt and Whitney 1115D-5 Series Engines. Installed the Williams International F144-3AP Engines with Full FADEC and Associated Systems in accordance with Nextant Aerospace MDL -NXT-001 Rev IR Dated 08/22/2011 or later FAA approved revisions, and FAA Approved AFM Supplement NXT-1-AF