 On 15 September, she stood out of the British colony to return to Vietnamese waters.During that third and final tour, she served as a screen commander for two of the attack aircraft carriers operating on "Yankee Station" located in the southern reaches of the Tonkin Gulf as well as antiaircraft warfare command ship for all of Task Force (TF) 77.On 28 September, "Wainwright" completed her final assignment in the combat zone and departed the Tonkin Gulf.