Is 'At 9:39, the FAA's Cleveland Air Route Traffic Control Center overheard a second announcement indicating that there was a bomb on board, that the plane was returning to the airport, and that they should remain seated.' in direct disagreement with the statement 'The FAA's Cleveland Air Route Traffic Control Center heard an announcement about a bomb being on the plane, but none was ever discovered.'
At 9:39, the FAA's Cleveland Air Route Traffic Control Center overheard a second announcement indicating that there was a bomb on board, that the plane was returning to the airport, and that they should remain seated.###The FAA's Cleveland Air Route Traffic Control Center heard an announcement about a bomb being on the plane, but none was ever discovered.