American Airlines will reduce its union employee count by 415 at its overhaul base at Kansas City International Airport. About 260 union employees chose early retirement, and the airline will involuntarily lay off about 155 union workers, the president of Local 530 of the Transport Workers Union, said recently. The plant has about 1,050 employees, he said. Officials with American Airlines couldn't immediately be reached for comment. He said that the airline would shut down all but two lines of work at its Kansas City aircraft overhaul plant, a move that called for cutting two-thirds of the plant's 1,000 employees soon. The Dallas-based airline said that it would cut 1,500 maintenance division jobs , including 1,300 mechanics and 200 management and support positions.