What happened
During the takeoff sequence, an engine malfunction occurred as the aircraft was performing its initial climb. Following the loss of power, the pilot-in-command attempted to execute an emergency return to the airfield. However, during this maneuver, the aircraft entered a stall and descended into the Río Negro.
Upon impact with the water, the plane submerged. There were no survivors among the six crew members on board at the time of the accident.
Findings
Investigations determined that the primary factor in the accident was an engine failure occurring shortly after the aircraft rotated for takeoff. The specific reason for the mechanical failure remains undetermined.