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 went up. The box has information about the plane's parts and what the pilots said. This can show if the plane had problems when it took off. One person who lived said the plane had trouble going up. People are looking at the plane's parts and how heavy it was. Experts from the U.S. will help so this does not happen again.