TORONTO - An investigation is underway after a plane crashed on Sunday during a military air show in Western Canada, killing the pilot, the local air base said. According to a statement from the military, the plane crashed at the show in Cold Lake, Alberta, and the event was canceled as a result. Global News reported that a witness said the plane did a loop, inverted and then dived straight down. The Trojan is a propeller driven aircraft that was used to train pilots in the 1950s and 1960s. Evans, a professional geologist, holds an airline transport pilot licence, a T-28 endorsement and a low-level acrobatic clearance to 250 feet.