What happened
During a takeoff roll from U-Tapao Air Base, the engine number four on the aircraft experienced a sudden loss of power. This mechanical failure led to an aerodynamic stall, causing the plane to descend uncontrollably. The aircraft impacted the ground near the end of the runway.
Following the impact, a significant fire broke out, which ultimately destroyed the wreckage. There were four fatalities among the crew members on board; no survivors were reported from the flight.
Findings
Investigations into the accident determined that the primary factor was the loss of power in the fourth engine during the critical takeoff phase. The specific reason for this engine failure remains undetermined.