1947 BSAA Avro Lancastrian Star Dust accident

Star Dust (registration G-AGWH) was a British South American Airways (BSAA) Avro Lancastrian airliner which crashed into Mount Tupungato in the Argentine Andes on 2 August 1947, during a flight from Buenos Aires to Santiago, Chile. A comprehensive search of a wide area (including what is now known to have been the crash site) was fruitless, and the fate of the aircraft and occupants remained unknown for over 50 years. An investigation in 2000 determined the crash was caused by weather-related factors, but until then speculation had included theories of international intrigue, intercorporate sabotage and even abduction by aliens.