On March 6, 2010, at 1630 coordinated universal time, an Alon Aircoupe A2-A, Portuguese registered CS-AIG, was destroyed when it impacted terrain under unknown circumstances near Ciborro, Montemor-o-Novo, Portugal. Visual meteorological conditions prevailed at the time of the accident. The pilot and one passenger were fatally injured. The local flight originated from Ciborro, Montemor-o-Novo, Portugal. The Portuguese investigators reported that the airplane departed for a one hour local flight and when it did not return, a search was initiated. The wreckage was discovered north/northwest of the airport in a marshy field. The accident investigation is under the jurisdiction and control of the Portuguese government. This report is for informational purposes only and contains only information released by or obtained from the Portuguese government. Further information pertaining to this accident may be obtained from: Ministério das Obras Públicas, Transportes e Comunicações GPIAA - Gabinete de Prevenção e Investigação de Acidentes com Aeronaves Praca Duque de Saldanha 31-4º 1050-094 LISOBOA, Portugal