On 15 August 1976, SAETA Flight 232 en route from Quito, Ecuador, to Cuenca was reported missing while in flight. The SAETA-operated Vickers Viscount 785D carried 55 passengers and 4 crew members. The route is considered a dangerous stretch due to the snow-capped mountain Chimborazo, a natural obstacle that is found 6,319 meters above sea level and 150 kilometers from the capital. Searches of the possible crash area produced no results. A mid-route crash on the stratovolcano Chimborazo was considered to be most probable, though some speculated a guerrilla hijacking.