WASHINGTON — The Federal Aviation Administration said Thursday that last week's computer system outage, which caused thousands of flight delays across the United States and a temporary grounding of the nation's airspace, appears to have been the result of 'unintentionally deleted files.'
WASHINGTON — The Federal Aviation Administration said Thursday that last week's computer system outage, which caused thousands of flight delays across the United States and a temporary grounding of the nation's airspace, appears to have been the result of"unintentionally deleted files."
"The FAA made the necessary repairs to the system and has taken steps to make the NOTAM system more resilient," the FAA added."The agency is acting quickly to adopt any other lessons learned in our efforts to ensure the continuing robustness of the nation’s air traffic control system." When the FAA first reported an issue with the NOTAM system late in the night on Jan. 10, it led to a"cascading" series of IT failures culminating in the nationwide disruption the next morning, a senior official briefed on the matter official told ABC News. By mid-day, there were more than 7,300 flight delays and 1,100 cancellations, according to tracking website Flight Aware.
The issue apparently occurred during routine scheduled systems maintenance, a senior official briefed on the internal review told ABC News. An engineer"replaced one file with another," the official said, not realizing the mistake was being made. As the NOTAM system began showing problems and ultimately failed, FAA staff feverishly tried to figure out what had gone wrong.
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