Does 'The controller checked his radio equipment and contacted another controller at 8:53, saying that we may have a hijack and that he could not find the aircraft.' logically set the stage for the hypothesis 'The controller contacted another controller to announce that everything was fine.'
The controller checked his radio equipment and contacted another controller at 8:53, saying that we may have a hijack and that he could not find the aircraft.###The controller contacted another controller to announce that everything was fine.