Accident
On a flight from Buochs Air Force Base to Sion, a single-engine aircraft crashed into the Finsteraarhorn mountain. The pilot encountered atmospheric turbulence and severe downdrafts, causing the aircraft to go out of control and impact the terrain. All three occupants were killed.
Aircraft and Crew
The aircraft was a single-engine type carrying one pilot and two employees of the Federal Military Department. The registration and further details are not specified in the source.
Investigation
An investigation was conducted to determine the cause of the accident. The findings focused on the weather conditions at the time.
Probable Cause
The official probable cause is loss of control caused by severe atmospheric turbulences and downdrafts caused by foehn wind.