Nationwide FAA Ground Stop Lifted; Radar “Instability,” Old System Was Root Of Airspace Shutdown, Transportation Secretary Insists

At 5:15 p.m. PT, the Federal Aviation Administration “lifted” today’s nationwide grounding of thousands of flights. According to Transportation Secretary Sean Duffy, the root cause of the crisis was a radar “instability” issue that led to the shutting down at 12:54 p.m. PT of domestic airspace this afternoon.