What happened
During an approach phase toward Siikakangas AFB, the flight crew encountered deteriorating meteorological conditions. As the aircraft navigated through this poor weather, it lost control and subsequently impacted the ground a few kilometers from the airbase perimeter. The accident resulted in fatal injuries for everyone on board, with all three crew members killed in the incident.
Findings
The source material does not provide specific technical findings or a formal investigation report regarding the mechanical status of the aircraft or detailed causal factors beyond the loss of control during adverse weather.