Three people escaped with minor injuries Friday when their small plane went down in the Strait of Juan de Fuca near Port Townsend.
The three got out of the Cessna 310 before it sank and were picked up by a nearby pleasure boat, the Coast Guard said.
The trio were identified as Arty Smith, 68, of Dallas, Texas; his wife, Doris, 67; and his daughter Elizabeth Treece, 52, of Seattle.
They were taken to Olympic Memorial Hospital in Port Angeles, where nursing supervisor Sharon Means said they were treated for bumps and bruises.
The twin-engine plane was bound for Port Angeles when it lost power just before noon, said Coast Guard spokesman Chris Buell in Port Angeles. The plane went down about 2 1/2 miles north of Protection Island, which is about 45 miles northwest of Seattle.
The plane was not leaking fuel and there were no immediate plans to raise it, Buell said.
The crash was witnessed by the pleasure-boat operator who picked up the three and radioed the Coast Guard.