They found the black box from the plane crash. Many people died. The black box can tell us why the plane crashed. The plane hit a building after it took off. The box has information about the plane's engines and what the pilots said. This can show if the plane had problems. One person who lived said the plane had trouble flying up after it took off. People are checking the plane's parts, sounds, weather, and how heavy it was. Experts from the U.S. will help so this does not happen again.