Mount Longa (Italian: Long Mountain) is a mountain located in the former Italian Province of Palermo in Sicily between the communes of Cinisi and Carini. Its highest peak is 975 meters mean sea level. Description. Mount Longa is located between the communes of Carini, Cinisi and Terrasini, and is located near Palermo Airport. On 5 May 1972 Alitalia Flight 112 crashed into the mountain killing all 115 people on board. A memorial was installed at the crash site. The use the mountain for fire spotting while radio and television broadcasters install repeaters there. A hiking path to the top starts at the Santa Venera forest. Remains of lookout posts (possibly of Carthaginian origin) have been found near the summit by Palermo archaeologist Mannino.