What happened
On November 17, 2019, at approximately 21:10 UTC, a Long EZ aircraft, registration LV-X383, crashed at the General Rodríguez aerodrome in Buenos Aires province. The aircraft had departed from the same airfield for a local recreational flight about five minutes prior to the accident. During the flight, while positioned over the aerodrome, the aircraft entered a steep descent that resulted in a high-speed impact with the terrain. The collision destroyed the aircraft and caused significant damage to a nearby hangar.
The investigation
Investigators from the JST analyzed several data sources, including flight data from the aircraft's EFIS console, security camera footage, maintenance records, and interviews. The investigation focused on the flight path, the mechanical condition of the aircraft, and the pilot's medical certification. Technical analysis of the wreckage and flight data confirmed that the engine was producing power throughout the flight path and that the aircraft was in an airworthy condition prior to the impact. The investigation also examined the pilot's medical limitations and the aircraft's cockpit configuration.
Findings
- The aircraft was performing a high-performance maneuver, likely a roll, at an altitude of approximately 800 feet when the loss of control occurred.
- This specific maneuver was not authorized by the aircraft's flight manual.
- The impact occurred at an estimated speed of 300 km/h.
- The pilot was the sole occupant of the aircraft, despite holding a medical certificate that was specifically limited to multi-crew operations.
- The aircraft's configuration only allowed for partial dual command in the rear seat, making it impossible to comply with the medical requirement for a second pilot.
- There was no evidence of mechanical failure or loss of control surfaces prior to the impact.
Safety action
- The investigation highlighted the critical importance of adhering to the specific limitations set forth in an aeronautical medical certificate to mitigate operational risks.