According to the US Navy Awards file, "Frank E. Evans" served in the waters off Vietnam for 12 days from July to September 1965. "Evans" was again in the vicinity of Vietnam for 61 days from August to November 1966. "Evans" returned to Vietnam and served there for 66 days from October 1967 to 20 February 1968. During the Tet Offensive, on 3 February 1968, "Frank E. Evans" provided naval gunfire support to the 101st Airborne Division near Phan Thiết against the 840th VC Battalion. "Evans" also spent an additional 14 days in 1969 in the Vietnam war zone.