Airlines will meet with the Federal Aviation Administration Wednesday to address weeks of delays at Newark Liberty International Airport following air traffic control staffing and equipment issues.

Secretary of Transportation Sean Duffy says glitches in the system show an upgrade is needed to the technology of the nation’s air traffic control system.

Transportation Secretary Sean Duffy plans to reduce the number of flights in and out of the Newark airport for the “next several weeks” as it struggles with radar outages and a shortage of air traffic controllers.