In 1960, a significant mid-air collision occurred over New York City, involving two commercial airliners. The incident took place on December 16th when United Airlines Flight 826, traveling from Chicago to New York City, and TWA Flight 266, en route from Ohio to New York City, collided in mid-air. The United Airlines flight subsequently crashed in the Park Slope neighborhood of Brooklyn, while the TWA aircraft fell in Staten Island. The tragedy resulted in a high number of casualties, including both passengers and people on the ground. The event led to major changes in air traffic control procedures to enhance aviation safety and prevent future accidents.