between march 1957 and the end of the year, "vance" was homeported at seattle, wash., as a unit of cortdiv 5 and completed eight patrols on various stations of the radar early warning system in the northern pacific. each tour lasted approximately 17 days, and the ship maintained a round-the-clock vigil, with air-search radars, tracking and reporting every aircraft entering or approaching the air space of the northwestern united states. on labor day 1957, "vance" drew emergency duty—an engineering casualty prevented the assigned ship from going out—and got underway in a fast 75 minutes. although it was only staffed at 60 percent of its complement (because many of its officers and men were ashore on leave or liberty and could not be notified in time to return to the ship before it weighed anchor) "vance" was deployed for 12 days and completed a successful mission.