Background
The aircraft departed from Jorhat-Rowriah Airport on a cargo (supply) mission over the State of Nagaland.
Accident
En route, the crew encountered poor weather conditions and the airplane entered a narrow valley in low visibility. The pilot realized the situation and attempted a sharp turn to return. During the turn, the airplane stalled, struck the ground, and crashed. The aircraft was destroyed and all nine occupants were killed.
Probable Cause
According to official findings, the probable cause of the accident was loss of control caused by the stall of the fully loaded aircraft while turning in a narrow valley, attributed to poor judgment on the part of the flying crew.