The National Broadcasting Corporation (NBC) reported that the US civil aviation system was paralyzed on Wednesday morning local time. The Federal Aviation Administration of the United States announced that all domestic flights in the United States were banned before 9:00 that day, causing more than 4000 domestic and international flights to be delayed in the United States at one time. Data from FlightAware, a flight tracking website, showed that as of 8:50 EST, about 698 flights in the United States had been cancelled. After that, the Federal Aviation Administration of the United States announced the lifting of the no-flight order, and the domestic civil aviation system of the United States was gradually returning to normal.
US President Biden has ordered the Ministry of Transportation to "thoroughly investigate" the cause of the civil aviation system outage, but the White House said that there was no evidence to prove that the civil aviation system outage was caused by network attacks. The Federal Aviation Administration of the United States said earlier on Wednesday that it was its "NOTAM" system that failed, and the cause of the failure still needs further investigation.
According to CNN, the outage of the US civil aviation system on Wednesday was the second crisis of the US civil aviation system in just a few weeks. During the Christmas season last month, the winter snowstorm once caused chaos in the civil aviation system of the United States, and the Southwest Airlines system was completely "collapsed".
Affected by the outage of the US civil aviation system on Wednesday, flights to the United States from major international aviation hubs such as London Heathrow Airport in the United Kingdom also experienced extensive delays. Some experts said that due to the massive flight delay caused by the outage, it may not be until Thursday or Friday of this year before the US civil aviation system can fully return to normal.
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