Separation of the composite skin on one of the three propeller blades that resulted in an in-flight vibration, and the pilot's failure to maintain clearance with the water while maneuvering to avoid obstacles in preparation for a precautionary landing.

The inadequate flare by the pilot during landing. Contributing factors were the lack of an endorsement by the pilot, the lack of total experience in the type of aircraft by the pilot, and the glassy water.