Aviateca Flight 901 crashes into the San Vicente volcano in El Salvador, killing all 65 people on board.

Aviateca Flight 901 was a scheduled international passenger flight which crashed into the 7,159-foot (2,182 m) San Vicente volcano in El Salvador on approach to the Comalapa International Airport on 9 August 1995. The accident killed all 65 passengers and crew on board and is the deadliest aviation disaster to occur in El Salvador. An investigation by the Civil Aviation Authority determined that pilot error and air traffic control error in bad weather contributed to the accident.

San Vicente is a stratovolcano in central El Salvador. It is located next to the town of San Vicente and is the second highest volcano in El Salvador. In the indigenous language Nahuat, Chichontepec means the mountain of the two breasts, because its double summit resembles a woman's bosom. The volcano has two craters, one located in each summit, although not exactly at the top. A dense jungle covers both summits. Numerous hot springs and fumaroles are found on the northern and western flanks of the volcano. To the northeast, at 820 metres in a ravine of 180 metres longitude, there are fumaroles—fountains of clear and muddy water or small volcanoes of mud.

El Salvador, officially the Republic of El Salvador, is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south by the Pacific Ocean. El Salvador's capital and largest city is San Salvador. El Salvador's population in 2024 was estimated to be 6 million.

August 9 is the 221st day of the year in the Gregorian calendar; 144 days remain until the end of the year.