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 "Pratt &amp; Whitney Canada PT6T"): Manufactured by Pratt & Whitney Canada, its first application was in the Bell 212 and UH-1N Twin Huey helicopter family.
Relevant evidence: No