The computer glitch that snarled U.S. air traffic on Thursday -- the second such outage in 15 months -- has prompted calls for speedier technology upgrades at the FAA. Officials say the failed computer system never posed a safety risk, though hundreds of flights were delayed as air traffic controllers manually entered flight plans that failed to file electronically. The technical issue was solved by 9 a.m. ET, though delays continued to linger into the afternoon. Experts said the episode highlighted the urgent need for infrastructure upgrades at the FAA. "This is like going into the house and having to redo the plumbing and electrical," said William Voss, president of the Flight Safety Foundation. "It's not glamorous, but it's essential for anything else to work."
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