Incident Overview
A pilot elected to depart from a remote lake under gusty, turbulent wind conditions. The airplane was estimated to be 245 pounds over its maximum gross allowable weight. Only four seats and corresponding seat belts were available for the six people on board.
Takeoff and Accident Sequence
Witnesses reported that the airplane was pulled off the lake abruptly and climbed at a steep attitude. After reaching approximately 20 feet above ground level, the airplane struck the water hard with its right float and subsequently turned upside down.
Rescue Efforts
Rescuers, including a pilot who was also a physician and a lodge owner, promptly reached the scene. They successfully administered cardiopulmonary resuscitation (CPR) to an unconscious and not breathing adult female and an unconscious and not breathing male juvenile.
Investigation
The investigation focused on the pilot's decision to take off under gusty, turbulent wind conditions with an overweight airplane. The lack of sufficient seats and seat belts for all occupants was also noted.