Controllers handling aircraft headed into Newark Liberty International Airport lost radio frequencies for approximately 2 seconds, said the FAA

The Federal Aviation Administration is investigating another radio outage at the troubled air traffic approach control facility responsible for flights approaching and departing Newark Liberty International Airport.

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

The latest outage also involved the Philadelphia air traffic control center responsible for handling flights at Newark. CBS News New York's Tim McNicholas reports.

Three days of meetings to discuss reducing the number of flights at Newark Liberty International Airport concluded Friday in the wake of critical air traffic control problems around the metro New York hub and other US airports.

The Federal Aviation Administration confirmed Monday yet another system outage occurred at the facility handling flights in and out of Newark Liberty International Airport. The agency said the Philadelphia control tower handling the air traffic lost radio frequencies for about two seconds at around 11:35 a.m.

Both excuses point to neglect. Neglect in maintaining safe and sustainable staffing levels, neglect in updating vital computer systems, neglect in providing industry standard equipment that won’t break down when somebody fires up the microwave in the break room.

Newsday spoke to experts who said that the direct cause of Newark’s blackout was unique, but the region's other airports like Long Island MacArthur, LaGuardia and John F. Kennedy face some of the same underlying issues — like dated equipment and a long-term shortage of air traffic controllers.