On July 7, 1997, about 1445 Alaska daylight time, an amphibian float equipped Cessna U206G airplane, N756ZV, sustained substantial damage while landing in the ocean near Cape Pierce, Alaska. Cape Pierce is located about 16 miles south of Platinum, Alaska. The airline transport certificated pilot was not injured; the two passengers aboard reported minor injuries. The 14 CFR Part 135 air taxi flight operated in visual meteorological conditions under charter to the United States Geologic Survey (USGS) office located in Anchorage, Alaska. The purpose of the flight was to transport USGS employees to Cape Pierce from Cape Newenham, Alaska. A company flight plan was in effect. This was the pilot's third trip of the day to the accident location. During a conversation with the NTSB investigator-in-charge (IIC) on July 9, the pilot related he was landing with a tailwind towards the beach. He said the airplane didn't come off the step as quickly as he anticipated, and that it continued out of the water and onto the beach, where it nosed over. The pilot said there was no preaccident mechanical problems with the airplane. He also said the amphibian landing gear wheels were retracted at the time of landing.