The concerns stem from beliefs that the new connection may interfere with radio transmissions to arriving and departingairlines.
Transportation SecretaryPete Buttigiegtold theWall Street Journalthat delays and cancellations were likely.
Buttigieg said only planes with the right equipment will be allowed to fly when visibility is poor.
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Newer altimeters have shields for interference, but many airlines did not upgrade all of their planes.
Several airlines, including JetBlue and Delta, have said that not all of their planes have been updated.
