Conquest Air Cargo C-131B N145GT (1954, CN 256) was returning to Opa Locka (KOPF) when it ditched several miles off the Florida coast. According to Avherald, both engines failed. One crew member was rescued, the search continues for the other crew member.
Avherald:
http://avherald.com/h?article=4c3efa5b&opt=0Flight Radar 24: