What happened
A supply mission operating out of Jorhat-Rowriah Airport resulted in a fatal accident while flying over the State of Nagaland. During the flight, the crew encountered significantly degraded weather conditions. As the aircraft entered a narrow valley characterized by low visibility, the pilot attempted an abrupt maneuver to turn the plane back toward its previous position.
During this maneuver, the aircraft experienced a stall and subsequently impacted the terrain. The impact resulted in the total destruction of the aircraft. There were nine fatalities among the occupants of the flight.
Findings
Investigations into the accident determined that the crew's decision-making contributed to the event. The primary factor was the loss of control resulting from an aerodynamic stall while the heavily loaded plane was performing a sharp turn within the confined space of the valley.