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

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

Transportation Secretary Sean Duffy explained Wednesday that he recently changed his wife’s flight to avoid the embattled Newark Liberty International Airport — but not because of safety issues.

At times Monday evening, as few as three air traffic controllers per hour were lined up to monitor via radar the planes flying into and out of the airport, the Federal Aviation Administration said.

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

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

The Federal Aviation Administration is considering temporary flight reductions in and out of Newark Liberty International Airport, and it's launching a safety task force.

Transportation Secretary Sean Duffy detailed his plan to update Newark Liberty International Airport‘s infrastructure to address recent outages, blaming the Biden administration for the current problems.