U.S. Transportation Secretary Sean Duffy and Homeland Security Secretary Markwayne Mullin are expected to address the unfolding air transportation crisis this evening from the White House.
Almost all flights across the U.S. remain grounded after the FAA declared a nationwide ground stop. The communications system used by FAA air traffic controllers is believed to be at fault, though the extent of the outage was not clear.
According to CBS News, an update to the communications system caused a reboot and a crash. The network cited multiple sources with knowledge of the matter.
L3Harris, which operates the system, has not commented.
A small number of flights have been cleared for takeoff at airports such as New York-JFK, Washington Dulles, Reagan National, and Detroit, but as of 8:30 p.m. most flights remain grounded.
JetBlue said around 7:40 p.m. that it has canceled all flights for the evening, except for Europe-bound departures.
United and Delta are also in the process of canceling domestic flights, according to news outlets who obtained internal communications. Neither has made a public statement to that effect.
American said it expects to cancel some flights if the ground stop continues.
