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What to KnowThe FAA has lifted a rare nationwide ground stop, which was issued due to communication issues at regional air traffic control centers.Secretary of Homeland Security Markwayne Mullin said there was no indication that “this was a nefarious attack against us. It’s just a telecommunications outage.”All three major Bay Area airports were impacted, leaving travelers scrambling to make arrangements.At least one airline, JetBlue, canceled the remainder of its Friday flights due to the ground stop.United on its website said late Friday it was holding most planes from taking off and had canceled a significant number of evening flights.

The Details

The Federal Aviation Administration grounded all flights nationwide Friday afternoon for just the second time since the 9/11 attacks, as officials cited “extraordinary circumstances” caused by communications problems at regional air traffic control centers.

The FAA just after 5:30 p.m. Friday reported the ground stop was lifted.