Several equipment outages over the past two weeks at the Philadelphia-based air traffic control center that guides planes to and from Newark Liberty International Airport have raised concerns about how safe it is to fly at one of the nation’s busiest airports.

Technology and staffing problems have plagued the airport, one of the nation’s busiest hubs. Officials say they are trying to resolve the issues, but concerns remain.

Newark airport's been plagued with issues that have travelers like me concerned about safety. It's not dangerous, but delays are a bigger concern.

Several times over the last year, Newark controllers lost radar or radio service, leaving them unable to talk with planes they were tracking.

The air traffic control mishap early Friday morning added to disruptions in recent days that have intensified concerns about safety at one of the busiest U.S. airports.

One of the region's busiest ports has come under scrutiny since revelations that its tower has lost contact with several planes in recent months.

Transportation Secretary Sean Duffy plans to reduce the number of flights in and out of the Newark Liberty International Airport for the “next several weeks.”

Newark Liberty International Airport is facing another FAA-imposed ground delay due to staffing shortages, after a telecommunications issue led to delays on Sunday.