This Twin Otter was originally delivered to Miami Aviation as N669MA in November 1969 but bought off lease by Rocky Mountain Airways in June 1971. This started a long association between that airline, Grand Canyon Airlines and Scenic Airlines during which time it carried both registrations N22RM and N54SA. The plane did have lease periods with Southern Jersey Airways and Empire Airlnes (both as N103AC) but returned to Scenic in December 1991 and it re-registered N228SA a couple of months later. Scenic was merged into Grand Canyon in April 2009 and the plane is still active with the latter.