What happened
During an air ambulance mission originating in Frankfurt and destined for Genoa, an aircraft struck the northeast face of Mt Le Grammont near Vouvry. The flight was intended to transport a patient, and the crew had received authorization to descend to 6,000 feet after passing over Bern.
As the aircraft crossed the Lake of Geneva, meteorological conditions deteriorated significantly. While flying at approximately 5,600 feet, the plane entered cloud cover. During this period, the pilot executed a left turn of 20 degrees for reasons that remain unidentified. Shortly thereafter, the aircraft impacted the mountain at an elevation of 2,172 meters. The wreckage was located within ten meters of the summit. There were two fatalities among the crew.
Findings
Official investigations into the crash could not establish a definitive cause with absolute certainty. However, investigators noted that the weather was characterized by poor visibility and icing conditions. While the precise reason for the 20-degree turn was not confirmed, authorities did not rule out the possibility that a navigation error contributed to the impact.