On May 30, 2005, at 1305 eastern daylight time, a Cessna TU206G airplane on amphibious floats, N95AK, piloted by a private pilot, was substantially damaged when it nose over during landing on Union Lake near West Bloomfield, Michigan. The personal flight was being conducted under 14 CFR Part 91 without a flight plan. Visual meteorological conditions prevailed. The pilot sustained minor injuries. In his written statement, the pilot reported that he departed Oakland County International Airport (PTK), Pontiac, Michigan, and flew in the local area for approximately 30 minutes. He recalled raising the wheels after takeoff. The pilot stated that prior to returning to PTK for landing he decided to make a "quick splash [and] dash" at Union Lake. The pilot reported that he set-up for a touch and go landing on the water. He recalled the landing gear control lever and the gear position indictor lights were proper for a wheels-up (water) landing. He reportedly touched down at 40 miles-per-hour (mph) and the airplane "started to dig into the waves." Approximately 30 mph the airplane nosed over into the water. The pilot recalled seeing the wheels in the extended position and hearing the hydraulic motor running as he exited the aircraft after the accident. A post-accident inspection was conducted. The airplane was supported on jacks and the landing gear was operated via the selector handle in the cockpit. The landing gear retracted and extended normally during that time. In addition, the indicator lights on the instrument panel functioned properly.