Incident Details
While descending to Dhangadhi Airport, the crew encountered marginal weather conditions and limited visibility due to low clouds. At an altitude of 4,300 feet, the aircraft struck the slope of Mt Jarayakhali, located 29 km from Dhangadhi Airport runway 09. The impact forces and a subsequent post-crash fire destroyed the aircraft.
Investigation
The official investigation determined that the aircraft was destroyed by impact forces and a post-crash fire. All 25 occupants were killed in the accident. The flight was operating under instrument flight rules, but the crew faced deteriorating weather conditions during the approach.
Probable Cause
The probable cause of the accident, as stated in the official findings, is controlled flight into terrain.