
WHYY Newscast for Friday 5:00 p.m.
By Samantha R. Patel
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This story originally appeared on 6abc. The Federal Aviation Administration ordered a nationwide ground stop on Friday for all airlines, including Philadelphia International Airport, due to a communications issue. Secretary Sean Duffy says the issue is impacting all Air Route Traffic Control Centers. Air Route Traffic Control Centers are responsible for all flights above 18,000 feet. There are 22 of those centers in the U.S.