What happened
The pilot reported that weather conditions deteriorated significantly while en route to the destination. Due to fog and poor visibility, the decision was made to land at a small airport. Although the airport beacon was operating correctly, the runway lights were not illuminated. During a second approach, the aircraft encountered dense fog, prompting the pilot to initiate a go-around procedure. While executing a right turn during this maneuver, the aircraft impacted snow-covered terrain.
The investigation
Examination of the site revealed that the airport beacon was functional at the time of the incident. However, critical visual cues were missing because the runway lights were not illuminated. The terrain surrounding the airport was covered in snow, which likely reduced contrast and depth perception for the pilot during the low-visibility approach.
Findings
The primary factors contributing to this accident include the deteriorating weather conditions, specifically fog and poor visibility. The lack of illuminated runway lights at the small airport removed a vital visual reference for landing. Additionally, the snow-covered terrain presented a hazardous environment during the go-around maneuver in a right turn.
Safety message
Pilots should be aware that small airports may not have all lighting systems operational, especially during adverse weather. Relying solely on the airport beacon is insufficient for safe operations in low visibility. Adequate alternate plans and strict adherence to minimums are essential when runway lights are unavailable.