Built in 1972, imported in 1988 and here in later operations with Thunder Airlines. It was wrecked on 14 June 1999 taking off from Thunder Bay, due to improper installation of the stabilizer pitch trim actuators. (To quote the report: "After getting airborne, the aircraft pitched up to approx. 70 degrees, reaching a height of about 500 feet. It then rolled to the left, pitched steeply nose-down, and descended to the ground within the confines of the airport." All occupants escaped injury from what must have been a terrifying experience.)

While Thunder Airlines has Beech King Airs and one Cessna Caravan for their scheduled and charter work with Northern Ontario communities, they use their MU-2s mainly for medivac flights. This one has been in their fleet since February 2014.

Lifting off from the runway at Sioux Lookout Airport, this 1973 King Air 100 is operating for Thunder Airlines of Thunder Bay, Ontario.