Newark flight forced to land at JFK due to maintenance issue

A Delta Airlines flight heading for Paris had an unexpected delay due to a maintenance issue.
The pilot of Delta flight 20 took off from Newark airport Monday around 6:30 p.m., but then had to land at JFK airport.
Over 200 passengers were on board.
According to the Port Authority, the plane had a hydraulic failure and the brakes started smoking after it landed.