Over the past two weeks, several equipment outages at the Philadelphia-based air traffic control center that guides planes to and from Newark Liberty International Airport, have raised questions on just how safe it is to fly at one of the nation’s busiest airports.

United Airlines, which makes up 75 per cent of flights through Newark, have had to cut back in the face of air traffic controller shortages, outdated safety equipment, and ongoing runway construction

The chaos at Newark Liberty International Airport over the last week has resulted in hundreds of cancelled flights — and United Airlines is nixing many routes to and from smaller cities in an effort to scale back traffic.

Air traffic control equipment failures and staffing shortages have fueled mass flight delays, and led the airport’s biggest airline to cancel dozens of daily flights over the coming weeks.

Facing mounting flight disruptions at Newark Liberty International Airport, United Airlines is urging the ... and there was no operational impact,” Leavitt said during a briefing Friday afternoon.

In the air traffic control recordings obtained by ABC News, you can hear an air traffic controller telling pilots that "approach lost all the radars."

United Airlines CEO Scott Kirby blames the FAA for not addressing the staffing and equipment problems, leading to the current disruptions. Travelers flying to, from or through Newark Liberty ...

United Airlines says it will cancel dozens of Newark flights per day after this week's delays and FAA staffing problems.

CHICAGO (Reuters) -United Airlines is facing a financial hit and potential long-term reputational harm as flight delays and cancellations pile up due to ongoing disruptions at Newark airport - one of its largest hubs and among the busiest in the country.