<human>:  How did the Air France Flight 447 crash?
<bot>: Air France 447 crashed into the Atlantic Ocean. The Airbus A330 was flying from Rio de Janeiro to Paris, France. The plane had been in the air for 5 hours and 30 minutes when it crashed. The plane had been cruising at an altitude of 36,000 feet (11,000 meters) when it suddenly disappeared from radar. The cause of the crash was never determined.