What happened
During the final approach phase of flight toward Hanoi-Gia Lâm Airport, an unidentified aircraft descended below a safe altitude. While maneuvering for landing, the plane made contact with trees in the vicinity of the airfield. Following this impact, the aircraft proceeded to crash into the Red River.
All four crew members on board were killed in the accident. There were no other occupants reported in the wreckage.
Findings
Investigations indicate that the primary reason for the accident was that the aircraft was flying at an insufficient altitude during its approach to the airport.