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Rumours of blade failure and a turbine shut down at Zond's new Z-40 plant in Texas in early December turned out to be the loss of two ailerons. Turbines were closed down at the Fort Davis site but fixed a few days later, says Ward Marshall of Central and Southwest Services, the Dallas-based utility that bought the 6 MW R&D project. The turbines have been closely watched since Zond won a bid to install a huge 100 MW project on Buffalo Ridge in Minnesota. Marshall said the loss occurred because the ailerons were not properly torqued down during construction. "I don't see it as an ongoing problem," he says. "Everything's going very well. I'm certainly very happy." The project was to go through "acceptance testing" in mid December for a final payment on the project purchase.

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