Built in May-1945 as USAF 44-74425. In Nov-1950 it was taken on charge by the Canadian AF as 9591. It was struck off charge in Apr-1958. But in Feb-1957 it had already become N6522D. In Jun-1971 it was allocated N51HB but this was not taken up. In 1973 it became N11T and in Apr-2005 it was registered PH-PSI.