Delivered to America West (N153AW) on April 8, 1986 for lease from the owner International Lease Finance Corp (ILFC). Returned to ILFC August 1991 to become N831LF, it was leased out as N732S to Sierra Pacific Airlines from October 1991 to June 1993. Morris Air came into the picture the same month picking the 737 up on lease and taking it into the merger with Southwest Airlines, where it became N672SW. It was sold to Pinnacle Aircraft Sales January 2008 and the registration finally cancelled in December 2014.