 June proved to be an important month in "Wainwright"'s history, for it was during the latter part of that month that she transited the Straits of the Bosphorus and the Dardanelles into the Black Sea and became the first American ship to visit Romania, at the port city of Constanţa, in 49 years.After concluding that visit on 24 June and passing back into the Mediterranean on 25 June, she conducted a brief surveillance of the Soviet helicopter carrier Leningrad before resuming her schedule of training exercises and port visits.On 30 June, "Wainwright" was redesignated a guided missile cruiser, CG-28.