Duffy Says System Upgrade Led to U.S. Ground Stop

“A contractor was doing routine maintenance to switch telecommunication lines from old copper wire, and they were bringing it over to fiber.” “And when we see that, your safety is paramount. We shut down the airspace.” “What we’re working to determine was whether we had incompetence. Meaning, was it user error or installer error from L3Harris or did they install a faulty router.” “I’m not sure exactly what happened, but I just want to go home.”