What happened
During an emergency medical transport mission, an aircraft was flying from Hanoi-Gia Lâm to Sơn La-Nà Sản Airport. The flight was tasked with transporting 27 injured soldiers along with a crew of three members.
As the plane began its initial climb phase immediately following takeoff from Gia Lâm Airport, the aircraft experienced a sudden left bank. This maneuver led to a high-impact crash accompanied by a large explosion. There were 30 fatalities in the accident, as all passengers and crew members perished.
Findings
Investigations into the accident determined that the primary reason for the loss of control was the structural failure of the left wing occurring just after the aircraft reached rotation speed.