Union officials say they have learned that jet-engine maker Pratt & Whitney plans to transfer work from repair plants in Connecticut to its plant here in Columbus and its plant in Singapore, according to the Hartford Courant newspaper.Officials of the International Association of Machinists, which represents 3,800 Pratt & Whitney workers in Connecticut, met with executives late Friday afternoon to discuss closures, the newspaper reported. During the meeting, they were told of the planned moves.On Tuesday, according to the Associated Press, the company had announced it was considering shutting down some manufacturing operations in Connecticut, eliminating about 1,000 jobs. At the time, the company, a subsidiary of Hartford-based United Technologies Corp., said it planned to meet with union officials to identify “feasible alternatives to moving the work outside of Connecticut.”That same day, United Technologies had reported that its second-quarter profit had dropped nearly 24 percent. According to the Courant, Pratt & Whitney’s plans involve shutting down the Cheshire Engine Center, which repairs commercial and military jet engines, and sending the work to Columbus and Singapore. Also, the work of the air-foil repair unit in East Hartford would be sent to Singapore. It is uncertain how many jobs would be created by moving part of the work to Columbus. Last month, Ohio-based automated-teller machine manufacturer NCR Corp. announced it was bringing 872 new jobs here to Columbus.The Pratt & Whitney plant off Macon Road in Columbus manufactures blades used in passenger and cargo airplanes. It also handles repairs and jet engine overhauls.United Technologies, the parent company of Pratt & Whitney, announced in March that it was slashing 11,600 jobs. Pratt & Whitney has a worldwide work force of 37,000. The last reported work force total for Pratt & Whitney’s Columbus operation was 575, but that was before the involuntary layoff of 55 employees last October. An undetermined number of workers also took buyout packages. James Parent, the union’s representative, told the AP on Tuesday that the contract with Pratt & Whitney prevents the company from closing the Cheshire plant until after the contract expires in December 2010. He said the company is required to preserve work at Connecticut plants.Parent said when it met with the union, Pratt & Whitney would be required according to contract to provide detailed financial information about how it believes it would save money by moving work elsewhere. The Ledger-Enquirer could not reach Pratt & Whitney officials in Connecticut and Columbus on Friday night.