spent a period of availability at the New York Navy Yard from 8 to 19 February before she engaged in training operations into late March, out of Casco Bay and Portsmouth, New Hampshire. Wilhoite departed Casco Bay on 28 March and, on the. following day, rendezvoused with TG 22.14—the unit assigned the task of hunting a reported southbound U-boat placed by intelligence information at . At 11:39 on 31 March, Janssen's part of Task Unit (TU) 22.3.1—made a sound contact. Wilhoite picked it up soon thereafter and attacked at 1146, her "hedgehog" hurling a pattern of projectiles six minutes later. She left two deep explosions soon thereafter but could ascertain no evidence of having scored any hits. Attacked by an iceberg After another brief period of unsuccessful "barrier patrols" between 1 and 6 April, Wilhoite trained out of New London, Connecticut, in ASW tactics with and units of Hague's TG 22.3, before she resumed active U-boat hunting activities. At 23:27 on 19 April, Wilhoite went to general quarters to investigate a radar contact and, at 23:43, illuminated the area with star shell. The object of the attention turned out to be a large, drifting iceberg. Meanwhile, the war on the European continent had been nearing its end; but the Battle of the Atlantic continued. Soon after the encounter with the iceberg, Wilhoite resumed "barrier patrols" with Bogue's TG 22.3. She was screening the carrier when Bogue's planes spotted a U-boat running on the surface at 1300 on 23 April. The aircraft attacked, but the U-boat "pulled the plug" and went deep in time to escape. U-546 sinks Frederick C. Davis The next day, torpedoed and sank , the last American combatant ship loss in the Battle of the Atlantic. However, the U-boat had little time to savor the victory, for the entire scouting line of destroyer escorts moved swiftly to the scene to rescue their sistership's survivors and to commence ASW operations. U-546 was brought to the surface, damaged, and sunk by gunfire from the destroyer escorts, quickly avenging Frederick C. Davis'''s loss. Over the next few days, Wilhoite conducted more "barrier patrols" as part of a group of warships carrying out sweeps in scouting line formation. The ships formed around two escort carriers, Bogue and , the former patrolling to the south, the latter to the north. At 20:00 on 7 May, Wilhoite, , and proceeded to the scene