Chelton Flight Systems of Boise, Idaho, has received FAA certification for installations of its FlightLogic EFIS avionics in a number of Part 23 airplanes, including the Beech King Air 350, Cessna CitationJet, Learjet 23 and the Merlin/Metro turboprop. Chelton last year received STC approval for installation of the FlightLogic displays in the Cessna Citation 501. Previous STCs for the FlightLogic EFIS cover the King Air 90/100/200/300, Cessna Conquest I and II, all Piper Cheyennes, all Commanders, the Mitsubishi MU-2, Pilatus PC-12, TBM 700 and Piaggio Avanti, in addition to hundreds of piston airplanes and a variety of helicopters