Flight History
On 18 June 2023, a Robinson R44 helicopter, registration LV-KBH, departed from the declared heliport 'Don Osvaldo' in San Carlos de Bolívar, Buenos Aires Province, at 20:10 UTC for a local pleasure flight. Approximately 20 minutes after takeoff, while cruising under visual meteorological conditions at an altitude of 350 feet and a speed of 80 knots, the pilot perceived unusual vibrations and the activation of an alarm. In response, he initiated an emergency autorotation to an unprepared field.
During the flare maneuver, the pilot was unable to control the descent rate, resulting in a hard contact with the ground. The accident occurred at 20:31 UTC.
Investigation
The official investigation, conducted by the Junta de Seguridad en el Transporte (JST), addressed operational aspects of the flight and the pilot's physical fitness. The report includes a Safety Recommendation directed to the National Civil Aviation Administration (ANAC). The probable cause was not explicitly stated in the provided source; however, the event is categorized as a loss of control in flight.