FAA orders ground stop at all US airports due to 'extraordinary circumstance and reasons for safety'
"All departing traffic should remain groundstopped until further notice," the US Federal Aviation Administration said. US Transportation Secretary Sean Duffy said technicians are investigating the issue.
<p>"All departing traffic should remain groundstopped until further notice," the US Federal Aviation Administration said. US Transportation Secretary Sean Duffy said technicians are investigating the issue.</p>