sentences:  On 7 January 1972, "Sterett" traveled on her second tour of duty off the Vietnamese coast.She departed for the Gulf of Tonkin and remained on PIRAZ station when on 21 February 1972 became the first United States Navy ship to direct the downing of a MiG-21 by Air Force Combat Air Patrol.During her second line period of the deployment, "Sterett" participated in the downing of two more MiGs (30 March) and brought down another with a salvo of Terrier missiles during the Dong Hoi engagement on 19 April.