NEW YORK (Reuters) - The U.S. Federal Aviation Administration (FAA) said on Sunday that a software upgrade at an air traffic center in Leesburg, Virginia, may have led to more than 440 flights getting canceled on the heavily populated U.S. East Coast on Saturday.
In a post on Facebook, the FAA said it had disabled the new features added from the upgrade until it completes its investigation.
There is no sign that the automated software that was upgraded has any "inherent problems," the FAA said.
Travel at airports affected by the glitch resumed normal operations by Saturday evening.
(Reporting By Elizabeth Dilts; Editing by Sandra Maler)