FAA Computer System , Outage Halts, All Flights in the US.br On January 11, flights across the United States br were grounded after the Federal Aviation br Administration was hit by a computer outage.br NBC reports that the issue forced br the FAA to halt all nationwide br flights until the issue was resolved.br Just before 9 a.m., the FAA announced br that the order had been lifted and that br normal operations could gradually resume.br As a result over 5,400 flights were delayed, br and over 940 flights were canceled.br As a result over 5,400 flights were delayed, br and over 940 flights were canceled.br According to the FAA, br its Notice to Air Missions br (NOTAM) system had "failed.".br Pilots check the NOTAM system before br they fly. A Notice to Air Missions alerts br pilots about closed runways, equipment br outages, and other potential hazards br along a flight route or at a location br that could affect the flight, Federal Aviation Administration, via NBC.br The FAA said that flights had been grounded “to allow br the agency to validate the integrity of flight and safety br information" as it brought the NOTAM system back online.br According to White House press secretary br Karine Jean-Pierre, there is currently br "no evidence of a cyberattack at this point.".br According to White House press secretary br Karine Jean-Pierre, there is currently br "no evidence of a cyberattack at this point.".br She added that the Department of Transportation br had been directed to conduct a full investigation br by President Joe Biden.br She added that the Department of Transportation br had been directed to conduct a full investigation br by President Joe Biden.br Today’s FAA catastrophic system br failure is a clear sign that America’s br transportation network desperately br needs significant upgrades. , Geoff Freeman, U.S.