1st prototype of the MS.732 variant. First flight as F-WFDQ 13 February 1951. Reregistered F-BFDQ October 1959 and sold in Belgium later that year. Registered OO-TYB 22 April 1960. Rebuilt at Genk in 1967, incorporating the wings and undercarriage of 2nd prototype MS.732 F-BFLY. Cancelled 26 April 1968 as WFU. Reportedly used as an advertising display at various locations in Belgium and eventually broken up for scrap.