US aviation safety regulators will allow fewer flights at Newark airport after technology outages and a staffing crunch fueled a surge in delays and cancellations in recent weeks.

The Federal Aviation Administration issued an order Tuesday decreasing the number of arrivals and departures allowed at Newark Liberty International Airport after weeks of delays caused by air traffic controller staffing shortages and runway construction.

The interim rule will cap the number of arrivals and departures at Newark Liberty International Airport at 28 apiece per hour. That’s in line with the limits imposed after about half a dozen controllers went on a 45-day trauma leave following the first outage on April 28.