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.

Should Newark Airport close until air traffic control upgrades are made? Experts and officials debate safety and the economic impact.

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

Several equipment outages over the past two weeks at the Philadelphia-based air traffic control center that guides planes to and from Newark Liberty International Airport have raised concerns on how safe it is to fly at one of the nation’s busiest airports.

The city of Newark will install radar detection equipment at a downtown intersection later this year to boost traffic efficiency and safety.

We have to fix this, because what you see in Newark will happen in other places across the country,” a top federal official said.

The blackout included losing radar for about 90 seconds at Newark Terminal Radar Approach Control at 3:55 a.m. local time, a source with knowledge of the incident tells CNN.

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