What happened
The pilot was conducting operations involving the use of an external load device, specifically a broadcaster or bucket, which required reloading on the ground. The aircraft hovered over a designated loading platform to facilitate this process. The pilot carefully lowered the broadcaster onto the platform so that the ground crew could complete the loading procedure.
Once the ground crew finished loading the equipment, the pilot maneuvered the helicopter to orient it for departure. As the aircraft began to move away from the loading area, the cables connecting the helicopter to the external load became entangled with a nearby truck on the ground. This entanglement caused the helicopter to lose control and descend rapidly.
The aircraft crashed in an uncontrolled manner following the loss of lift and stability caused by the cable snag. The incident occurred during the departure phase of the flight, immediately after the completion of the ground-based reloading task.
The investigation
Investigation into the mechanical aspects of the event focused on the interaction between the helicopter's external load system and the ground environment. Examination revealed that the primary issue was not a mechanical failure of the helicopter itself, but rather the physical entanglement of the load cables with stationary ground equipment.