Registered new as N964M on 01 May 1972. Reregistered to N21SH, no date. To Shobokshi Group in Saudi Arabia as HZ-SH4 by 27 Apr 1983. To N900SA in Nov 1984. To Mexico as XA-ROK in Apr 1989. To XA-OLI on 15 May 1991. Later reregistered in Mexico. Registration not known. Presumed WFU.