What happened
During a flight transitioning from Chimbu toward Goroka, the crew encountered adverse meteorological conditions characterized by dense fog and rainfall. While other flight crews in the area opted to divert to Madang Airport due to these visibility issues, the crew of this aircraft elected to proceed with their original route.
While operating at an altitude of 7,400 feet amidst restricted visibility, the aircraft type struck the side of Mt Yasirua. The impact occurred approximately 7.2 km northeast of Goroka Airport. Of the four people on board, there were two fatalities and two survivors, consisting of the pilot and one passenger.
Findings
Investigations into the accident determined that the primary factor was controlled flight into terrain during the period of low visibility.