Question: Who produced a utility aircraft that is a remanufactured and modified Douglas DC-3, conversions include fitting the frame with the new engine produced by Pratt & Whitney Canada? 
Sentence (from "Basler BT-67"): The conversion includes fitting the airframe with new Pratt & Whitney Canada PT6A-67R turboprop engines, lengthening the fuselage, strengthening the airframe, upgrading the avionics, and making modifications to the wings' leading edges and wing tips.
Relevant evidence: No