HARRY R. WEBER
ATLANTA (AP) — For the second time in a little more than a year, a glitch at one of the two centers that handle flight plans for the nation's air travel system set off delays and cancellations for passengers around the country. The snarl Thursday — traced to something as simple as a single circuit board — prompted calls for more money and manpower at the Federal Aviation Administration, which has struggled without success for years to overhaul the air traffic system. The circuit board, at an FAA center in Salt Lake City, is part of a multibillion-dollar nationwide communications network that the agency has spent years installing as part of plans to modernize air traffic control. A government watchdog said last year that the network was over budget and plagued by outages. On a single day in 2007 alone, the failure of parts of the network was responsible for 566 flight delays. Aviation experts are unsure whether any system that relies on the interconnectedness of computers can prevent glitches from causing havoc unless there are sufficient backup systems to handle the thousands of flight plans filed each day in the U.S. "A good communications system should have enough redundancy that a failure shouldn't hurt it that badly," said Michael Ball, a University of Maryland professor who specializes in aviation operations research.- Loading Comments...
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