The Federal Aviation Administration said on Sunday that a new telecommunications issue at the facility that guides aircraft at Newark Liberty International Airport forced the agency to briefly slow aircraft in and out of the airport.

The air traffic system meltdown at Newark Liberty International Airport last week “was the most dangerous situation you could have,” according to an air traffic controller on duty that day, as the fallout from the outage stretches into a second week.

Newark Liberty International Airport suffered another brief air traffic control outage Friday morning, the FAA confirms.