NBC’s Kristen Welker grilled Sean Duffy on the repeated air traffic control outages at Newark Liberty Airport and the transportation secretary didn’t seem convinced that his agency has a handle on the ongoing crisis.

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,” as New Jersey’s largest airport struggles with radar outages and numerous flight delays and cancellations due to a shortage of air traffic controllers.

Newark Airport has faced a number of air traffic control equipment outages in recent weeks.