Staff shortages and equipment failures at Newark Liberty International Airport have raised safety concerns in recent weeks.

Many flights have been delayed at the busy hub because of radar outages, shortages of air traffic controllers and construction on a runway.

Over the past two weeks, several equipment outages at the Philadelphia-based air traffic control center that guides planes to and from Newark Liberty International Airport, have raised questions on just how safe it is to fly at one of the nation’s busiest airports.

United Airlines executives are trying to reassure their customers it is safe to fly at Newark Liberty International Airport​, despite all the recent problems.

Moving air traffic controllers means retraining them on the quirks of a new facility, and the process can take years.

Airline has trimmed its daily routes following technology and staffing issues affecting New Jersey hub.

With summer travel season approaching, the crisis at the New Jersey airport could mean weeks, if not months, of misery for travelers.