The Federal Aviation Administration said a damaged database file appeared to have caused the outage in the safety-alert system
U.S. air travel returned mostly to normal Thursday, a day after a computer system that sends safety information to pilots broke down and grounded traffic from coast to coast.
By late morning on the East Coast, only about 100 flights had been canceled and 1,000 delayed — much lower figures than on Wednesday, when more than 1,300 flights were scrubbed and 11,000 delayed.
The Federal Aviation Administration said a damaged database file appeared to have caused the outage in the safety-alert system. Transportation Secretary Pete Buttigieg promised a thorough examination to avoid another major failure.
“Now we have to understand how this could have happened in the first place, why the usual redundancies that would stop it from being that disruptive did not stop it from being disruptive this time, and what the original source of the errors or the corrupted files would have been,” Buttigieg told CNN.
He said there was no indication that the outage was caused by a cyberattack, “but we’re also not going to rule that out until we have a clearer and better understanding of what’s taking place.”
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