Radar screens that monitor Newark Liberty International Airport in New Jersey went completely black for about 90 seconds ...

The ground stop, which lasted for about an hour on Friday, came shortly after the FAA confirmed that air traffic controllers experienced a 90-second outage.

The blackout included losing radar for about 90 seconds at Newark Terminal Radar Approach Control early Friday morning, according to the FAA.

The air traffic controllers directing planes into the Newark, New Jersey, airport briefly lost their radar Friday morning for the second time in two weeks, renewing concerns about the nation’s aging ...