Investigation Summary
The accident occurred during a private training flight involving a seaplane instructor and a student. The flight originated from Siljansnäs Airfield (ESVS) and was conducting repeated take-offs and landings on Lake Siljan. According to preliminary data, the aircraft turned toward an east-north-easterly direction over Sollerön island for a landing attempt. During this maneuver, the aircraft reportedly tipped forward and flipped over in the water. The NTSB is assisting the Swedish Accident Investigation Authority (SHK) in the investigation. While secondary sources suggest the aircraft was configured for a water landing with the gear retracted and note environmental factors such as tailwinds and rough water, the NTSB has not yet released a final determination regarding the sequence of events or contributing factors.
Video Analysis
No video analysis linked for this case file yet.
Systems & Failure Modes
Landing Gear
The UC-1 is an amphibious aircraft; landing on water requires the gear to be retracted to prevent the aircraft from flipping forward upon contact.
Interesting Facts
- 01The aircraft was a United Consultants UC-1 Twin Bee, a twin-engine amphibian based on the Republic RC-3 Seabee hull.
- 02Both the flight instructor and the student pilot were fatally injured in the accident.
- 03The flight was conducted as a private operation under Part 129 (Foreign).
- 04The NTSB did not travel to the scene, providing assistance to the Swedish authorities remotely.
- 05The aircraft is reported to have flipped forward upon contact with the water.