The disruptions began at an air traffic route control center in Chicago before spreading to facilities in New York, Boston, Washington, and Minneapolis. Department of Homeland Security Secretary Markwayne Mullin reported that investigators have found no evidence of a cyberattack or nefarious activity behind the outage. While the core technical problem remains unresolved, regulators have slowly begun easing restrictions by allowing select long-haul international flights to depart on a case-by-case basis.
Key points
Federal officials have found no indications that the massive telecommunications failure w…: Federal officials have found no indications that the massive telecommunications failure was caused by a cyberattack.
Every aircraft already in the air remained fully accounted for during the unprecedented g…: Every aircraft already in the air remained fully accounted for during the unprecedented ground stop.
Technicians continue working to restore full connectivity as select international routes…: Technicians continue working to restore full connectivity as select international routes slowly resume departures.
Sources checked by our analysis pipeline: 1
Sean Duffy says technicians from Federal Aviation Administration are investigating; Trump’s homeland security secretary says ‘no indication as of yet’ of cyberattack
What we know, and don't know, about total shutdown of departures from all US airports
The US Federal Aviation Administration said in a statement that the nationwide halt to departures, and delays to landings, at all US airports that began at about 4pm ET on Friday was caused by “a temporary telecommunications outage”.
“Every flight has been accounted for and international flights will be handled on a case by case basis,” the FAA added.
Here is what we know about the rare nationwide “ground stop” issued by the FAA.
There is, as of now, no sign that the “telecommunications outage” that led to the sudden halt to all departures at US airports has been fixed.
It remains unclear what caused the outage, but, according to Markwayne Mullin, the former Oklahoma senator now leading the Department of Homeland Security, “there is no indication … that this was a nefarious attack”.
There have been 10,343 flight delays within, into or…
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