They found the black box from the plane crash. Many people died. The black box helps us know why the plane crashed. The plane hit a building after it took off. The black box tells us about the plane's engines and what the pilots said. This can show if the engine had problems. One person who lived said the plane had problems right after it took off. People will check the engine and alarms. People from the U.S. will help. They want to stop crashes in the future.