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US Airways said that it will drop unprofitable routes, halt jet service to nine airports and consolidate some maintenance and reservations operations in a corporate cost-cutting move. . . . AT&T; Corp. said three top executives resigned to help form OneComm LLC, a local phone company spearheaded by cellular pioneer Craig McCaw. Steve Hooper, president and chief executive of AT&T; Wireless; Wayne Perry, vice chairman of AT&T; Wireless; and Gerard Salemme, vice president of federal government affairs, left to join OneComm. . . . Striking Goodyear Tire & Rubber workers voted overwhelmingly to approve a six-year contract, ending a seven-state walkout that started April 20. . . . Bre-X Minerals Ltd. said that it has been granted protection from creditors by a Canadian court as it liquidates the company, in what was described as the biggest mining fraud in history. Bre-X faces eight lawsuits from shareholders in Canada and the United States.