A Cuban-operated airliner with at least 110 people aboard crashed and burned in a cassava field just after takeoff from the Havana airport yesterday. Cuban media reported three survivors. The Boeing 737 went down just after noon a short distance from the end of the runway at Jose Marti International Airport while on a short-hop flight to the eastern city of Holguin. Firefighters rushed to extinguish the flames that engulfed the jet. "There is a high number of people who appear to have died," Cuban President Miguel Diaz-Canel said from the scene. "Things have been organized, the fire has been