What happened
On June 15, 1997, a private flight involving an SF-25-C Falke, registration OH-598, was conducting a bird-nesting survey near Hangö. Approximately 15 minutes into the flight, the pilot initiated a low-altitude glide from 300 meters. After a few minutes of gliding at 200 meters, the pilot attempted to increase power to level off; however, the engine failed to respond to the throttle, remaining at a steady idle of 700–800 rpm.
The aircraft was positioned over the sea, with the nearest available landing site being a field on the mainland several kilometers away. Utilizing a headwind, the pilot managed to reach a field, though the landing area was severely restricted by a rocky slope and a cross-drainage ditch. The pilot utilized heavy braking and a side-slip maneuver to reach the ground. The aircraft touched down approximately 50 meters past the ditch. Due to the slippery surface of the field, the pilot performed a sharp turn to stop the aircraft, eventually coming to a halt 15 meters from a treeline. There were no injuries to the two occupants, but the aircraft sustained damage to the propeller, the right wingtip, the right aileron pushrod, and the right wing support wheel.