FAA, Newark and United Airlines
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The move is in response to equipment failures and staff shortages that caused hourslong flight delays in recent weeks.
Sunday's incident marks the fourth time in the past two weeks that technical problems have disrupted air traffic at Newark.
2don MSN
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.
Staff shortages and equipment failures at Newark Liberty International Airport have raised safety concerns in recent weeks.