Cessna 180D, N6425X: Pilot error led to float plane crash, NTSB. Accident occurred July 24, 2011 in Oscoda, Michigan.

http://www.ntsb.gov/Accident Report

OSCODA — Pilot error appears to have caused a July 24 float plane crash in the Au Sable River.

Daniel V. Gary was attempting to land the 1960 Cessna 180D when the aircraft flipped in the water above Foote Dam, Iosco County Sheriff Allan L. MacGregor has said.

Gary, 52, of Oscoda, reportedly told National Transportation Safety Board investigators that he neglected to raise the wheels after takeoff from a paved runway.

Gary was practicing water landings at the time of the crash, an NTSB report shows.

The wings of the plane sustained “substantial damage” but Gary escaped unharmed, the NTSB reported.

Source: http://www.mlive.com