On 10 June 1945, "Underhill" left Leyte for Hollandia, but en route received a distress call from OA-10 #23, a Consolidated PBY Catalina flying boat. "Underhill" and "Thadeus Parker" were diverted to the crash site by orders of the Commander, Philippine Sea Frontier. The destroyers and various aircraft patrolled the area until 12 June when the search was abandoned. After "Parker" and the aircraft had left the area, "Underhill"'s lookouts spotted green dye marker and a ration can floating in the water. Investigating further, into a rain squall, the lookouts found three survivors, who had been in the water about 60 hours with life jackets but no life raft. "Underhill" took them aboard at 07:59 and transported them to Hollandia.