What happened
During a cruise phase flight in foggy conditions, the crew of a twin-engine aircraft lost their spatial orientation. The team failed to recognize that they were flying at an altitude too low for the terrain below. Consequently, the aircraft impacted hilly ground within the Misty Law Mountains area of Renfrewshire.
The collision resulted in the destruction of the airframe. All four individuals on board sustained injuries. There were no fatalities reported in this incident.
Findings
The official investigation concluded that the accident was caused by a controlled flight into terrain. The primary contributing factor was the loss of situational awareness due to reduced visibility, which prevented the crew from detecting their proximity to the ground until impact.