Great Lakes Paper operated this Convair 580 March 1970 to January 1973. Originally Convair 340 N73134 Mainliner Portland with United Airlines in 1953, it was owned by Johnson and Johnson as N400J after 1958. Converted to a 580 in 1963, the aircraft moved to the USA again in 1973 as N8EH. With the Canadian government as C-GRSC from July 1974 utilized for research with the Department of Energy, Mines and Resources and Canada Centre for Remote Sensing. Retired circa 2010, the aircraft was donated to the Canada Air and Space Museum in 2015 and housed in their reserve collection at Rockliffe, ON.