The Federal Aviation Administration said Friday that it suffered a new outage at a Philadelphia facility overseeing air traffic at Newark Liberty airport, the latest in a string of equipment woes that have hindered traffic and raised public alarm.

Airlines and aviation officials plan to meet on May 14 to discuss further flight cutbacks at Newark airport following multiple breakdowns in radar systems.

The air traffic controllers directing planes into the Newark, New Jersey, airport lost their radar Friday morning for the second time in two weeks.