It was alarming news when air traffic controllers directing planes coming and going around one of the nation's busiest airports repeatedly lost their radar and radio communications, but pilots, independent air safety experts and the Federal Aviation Administration say other redundant systems kept planes from colliding.
“I think the risk of a collision or an incident was increased, but not significantly because of the redundancy in the aviation system,” said Jeff Guzzetti, a former accident investigator for the FAA and the National Transportation Safety Board.
