Accident Details
An airline transport pilot was departing to the north from a narrow stream in a float-equipped airplane with lodge guests aboard. The flight was conducted under Title 14, CFR Part 91. At the time of the accident, northerly winds between 25 and 35 knots were reported.
Sequence of Events
The pilot reported that after departure, he turned left, and a strong downdraft "threw the airplane to the ground." Passengers stated that the airplane started its takeoff run directly into the strong winds. Shortly after becoming airborne, the pilot made a steep turn to the left, about 150 feet above the ground. As the airplane continued to turn left, it began to shudder and buffet, then abruptly descended nose low into the marsh-covered terrain.
Post-Impact
During the impact, the right wing folded, and the airplane's fuselage came to rest on its right side. One occupant, seated next to the right main cabin door, was partially ejected during the impact sequence and became pinned under the fuselage, covered by water. Rescue efforts by the pilot and passengers were unsuccessful.
Investigation Findings
In the pilot's written statement to the NTSB, he reported no preaccident mechanical anomalies with the airplane. During the on-site examination of the wreckage by the NTSB investigator-in-charge, no preaccident mechanical anomalies were discovered.