The Federal Aviation Administration ordered a nationwide ground stop Friday afternoon after a communications issue affected air traffic control centers across the country, Transportation Secretary Sean Duffy said.
The FAA cited “extraordinary circumstances and for reasons of safety,” according to the Associated Press, though its website showed no active advisories as of 2 p.m.
At San Francisco International Airport, where wind had already caused delays averaging 138 minutes, an air traffic controller said full operations were not expected to resume until 8 p.m., according to a live tower feed monitored by SFGATE.