Transportation Secretary Sean Duffy released a four-point plan to address the failing infrastructure at Newark Liberty Airport.

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.

Federal Aviation Administration officials and Secretary of Transportation Sean Duffy are at separate hearings Wednesday morning on Capitol Hill, as cancellations and delays continue to plague Newark International Airport and impact other airports around the country.

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

Duffy laid out an extensive plan to replace the nation’s outdated air traffic control system last week, including installing 4,600 new high-speed data connections and replacing 618 radars, but didn’t put a price tag on the plan other than to say it will cost billions.

Rep. Mikie Sherrill wrote to Transportation Secretary Sean Duffy about when he expects to meet needed levels of air traffic controllers for Newark.

For a week and counting, flying in and out of Newark Airport has inflicted misery on travelers. The cancellations and  delays have been caused by a cascade of infrastructure failures and staffing

Newark problems and recent crashes put focus ... center days after trespassing arrest Software update keeps Newark airport radar online but network concerns and flight limits remain Infrastructure issues are increasingly a key concern at airports around ...

One runway is closed and there's a shortage of air-traffic controllers, causing flights to be delayed or canceled.