FAA lifts nationwide ground stop after overloaded communications routers disrupt U.S. air traffic
The FAA lifted a nationwide flight-departure halt after a communications failure at air traffic control centers disrupted operations across the country. Officials attributed the outage, which began at 3:36 p.m., to overloaded routers experiencing instability; they said there was no indication of an attack. The shutdown was described as the longest since Sept. 11, 2001.