8:48:29 : The first radio report of the incident is heard on WCBS-AM through traffic reporter Tom Kaminski . WCBS ' traffic reports are delivered every ten minutes " on the 8s " , meaning that Kaminski 's traffic report was to come within two minutes of the initial impact of Flight 11 ( although there is no record of how much time actually passed ) . At the time Kaminski was in " Chopper 880 " , WCBS ' helicopter that he reports from for morning and evening rush hour traffic reports . The following consists of WCBS anchor Pat Carroll crossing to Kaminski in the chopper before he files his report
Flight 11
American Airlines Flight 11
Timeline for the day of the September 11 attacks