On November 29, 1968, a De Havilland DHC-2 Beaver (registration LV-GHX) operated by Aerochaco (Líneas Aéreas Chaqueñas) was involved in an aviation accident near Rosario, Argentina during takeoff. 2 people were killed. Investigators recorded the probable cause as: The aircraft became uncontrollable during the initial climb phase following a maintenance test flight. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).
A single-engine aircraft crashed shortly after takeoff during a maintenance test flight, resulting in two fatalities.
What happened
A local test flight was being conducted following recent maintenance work on a single-engine aircraft. The flight crew, consisting of one pilot and one technician, departed from the airfield to verify the aircraft's operational status.
Shortly after the departure phase, the aircraft experienced a loss of control. The plane descended rapidly and struck the ground in the vicinity of the runway threshold. The impact resulted in two fatalities, as both individuals on board were killed in the crash.
Findings
The investigation into the accident focused on the period immediately following takeoff. While specific mechanical failures were not detailed in the initial report, the aircraft's inability to maintain stable flight led directly to the uncontrolled descent and subsequent impact near the end of the runway.
Probable cause
The aircraft became uncontrollable during the initial climb phase following a maintenance test flight.