Incident Overview
A floatplane experienced a loss of its floats during cruise flight over a lake. According to the pilot, the aircraft's performance during takeoff was abnormal, requiring more distance than usual and additional effort to become airborne. Despite these observations, the pilot reported that the preflight inspection revealed no issues with the aircraft or its flight controls.
Sequence of Events
During the cruise phase of the flight, the floatplane made contact with the lake surface. This contact resulted in the detachment of both floats from the aircraft. The right door, which opened in flight after the right float separated, allowed the two unrestrained rear seat passengers to be ejected from the airplane.
Examination Findings
A post-incident examination of the floatplane found no anomalies that would have precluded normal operation. The aircraft's systems and structure were intact and functional, with no evidence of pre-existing defects.
Pilot Statement
The pilot noted that the aircraft did not handle as expected during takeoff, stating that it "ate up a lot of lake" and required forceful manipulation to become airborne. However, the pilot confirmed that the preflight check was normal.
Conclusion
The incident involved a floatplane contacting the lake surface during cruise, leading to float separation and ejection of unrestrained passengers. The examination showed no mechanical issues that could explain the event.