Rescue crews have recovered a second black box – a flight data recorder – from the wreckage of a China Eastern Airlines Boeing 737-800 that crashed into a mountainside in southern China. Officials announced that all people on board, including nine crew members, had died.Rescue crews have recovered a second black box – a flight data recorder – from the wreckage of a China Eastern Airlines Boeing 737-800 that crashed into a mountainside in southern China. Officials announced that all people on board, including nine crew members, had died.