What happened
A commercial pilot was operating a scheduled commuter flight between a company seaplane base and a nearby island destination. The aircraft was carrying one passenger and cargo at the time of the accident. Witnesses at the destination harbor observed the aircraft type making a westerly approach amidst southeast winds and light water chop. During the final stages of the approach, observers noted the wings rocking and a wind gust lifting the tail. As the plane touched down, it was drifting to the right. The right float submerged under the water, causing the aircraft to pivot around the right wingtip and subsequently nose over.
Flight data analysis showed that during the final descent, the wind conditions shifted from a 6-knot right headwind to an 8-knot left quartering tailwind. While these wind components remained within the operational limits of the aircraft, the shift resulted in a higher-than-normal ground speed. There were no mechanical failures or malfunctions found in the engine or airframe that would have prevented a normal landing or emergency egress.
Findings
The investigation identified several contributing factors related to pilot experience and operational oversight. The pilot had been with the company for only one month and possessed very limited seaplane experience, having completed training less than two weeks prior to the event. While the pilot had access to various wind indicators, including cockpit displays and visual cues, the rapid change in wind direction and the resulting increase in ground speed likely overwhelmed his ability to maintain directional control.
Furthermore, organizational failures played a role in the accident. Although a company flight risk assessment had flagged the flight in the caution area due to the pilot's lack of experience and unfamiliarity with the area, the flight coordinator failed to notify management as required by company policy. This lack of notification occurred because a previous flight with a similar risk profile had been approved earlier that day without management intervention. Additionally, the pilot was assigned to a commuter flight despite company policy suggesting new hires should initially be assigned to tour flights to gain experience. The loss of control during the landing was primarily driven by the pilot's inability to compensate for the shifting winds and increased ground speed.