The survivors who were aboard the aircraft and the witnesses on the ground who report they heard the loud bang which caused the engine to quit. The engine is a Curtiss Wright PT-6 turboprop design, which has been known to have some other recent failures in other aircraft that are still the subject of investigation to discover the causes. One of those causes may be EDD(Electrical Discharge damage) resulting from yet to be understood issues when repairing a failed electrical generator, accoding to an Australian air transportation agency.
And ya just don't see many of them around anymore.
It's akin to seeing Hispano-Suiza RB211's on a McDonnell-Douglas B747-400.