On April 28, Newark approach lost radar and comms with at least 16 commercial jets. Many circled in oval loops before landing elsewhere. A CNN data analysis reveals the ripple effects from the outage.

On April 28, Newark approach lost radar and comms with at least 16 commercial jets. Many circled in oval loops before landing elsewhere. A CNN data analysis reveals the ripple effects from the outage.

Over a dozen locations in the Hudson Valley, New York City and Long Island began utilizing the radar technology on Nov. 20, including several locations on I-84, I-87 and I-495.