Transportation Secretary Sean Duffy says a new software update prevented a third radar outage over the last two weeks at New Jersey's busy Newark airport when a telecommunications line failed again over the weekend.

For the third time in two weeks, Newark Liberty International Airport air traffic controllers overseeing the busy New Jersey airport were temporarily unable to contact pilots.

Newark Liberty International Airport in New Jersey has been dealing with nonstop delays and flight cancellations due to outdated equipment and air traffic control understaffing across the U.S.

Travel woes at Newark Airport continued Monday after a weekend featuring another radar outage, a ground stop and dozens of flight cancellations and delays. The FAA announced Newark was operating on a ground delay program,

Sen. Andy Kim, a New Jersey Democrat, said the FAA is not being transparent enough after visiting air traffic controllers in Philadelphia and Newark.

Newark approach lost radar and comms with at least 16 commercial jets. Many circled in oval loops before landing elsewhere. A CNN data analysis reveals the ripple effects from the outage.

FAA does not provide details about the third reported equipment outage impacting flights Sunday at Newark Liberty International Airport.