There was another air traffic control outage in less than two weeks at the same Philadelphia facility that directs planes in and out of Newark Liberty International Airport on Friday morning.

That first radar outage led to hundreds of flights being canceled or delayed at the Newark airport in the past two weeks after the FAA slowed down traffic at the airport to ensure safety. Five controllers also went on trauma leave after that outage, worsening the existing shortage. It’s not clear if any additional controllers will go on leave now.