Incident Overview
A student pilot and instructor were conducting water landing exercises on Lake Sammamish near Redmond, Washington. The winds were initially calm during the first landing. On the second landing, it was noted that the wind began to increase.
Sequence of Events
According to reports, wind shear was encountered during the final approach for the third landing. A high sink rate developed, and the plane landed hard. The front of the left float split open as a result of the impact, and the float filled with water.
Damage and Aftermath
With the left float compromised, the aircraft slowly rolled over and sank into the lake. The extent of damage beyond the left float was not specified. The aircraft was not recovered at the time of the report.