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PPL Susquehanna Nuclear Plant Plans Unit Shutdown For Additional Turbine Inspection





BERWICK, Pa., Oct. 5, 2012 /PRNewswire/ -- PPL's Susquehanna nuclear power plant has reduced electricity output on both of its generating units and is preparing for a planned shutdown of the Unit 1 reactor later this month for additional turbine inspection, as the company looks to confirm data provided by new instrumentation that could lead to finalization of a plan to resolve the issue of turbine blade cracking that was first identified in 2011.

Pending the outcome of the Unit 1 inspection, PPL Susquehanna will determine whether a similar inspection of the Unit 2 turbine is warranted.

During the upcoming Unit 1 outage, workers will inspect turbine blades for any indications of cracking similar to what had been discovered previously on the Unit 1 and 2 turbines.

"Maintaining our margins of safety is the top priority," said Timothy S. Rausch, PPL Susquehanna senior vice president and chief nuclear officer.  "Consistent with best practices in the nuclear power industry, we've been very systematic and deliberate in our approach to this issue, from conducting periodic inspections to replacing turbine blades when appropriate and installing diagnostic equipment to monitor for conditions that may lead to cracking.

"As a result of these efforts and our ongoing, detailed engineering analysis, we are in the final stages of verifying the causes of the cracking and implementing both short-term and long-term measures to resolve the cracking issues," Rausch said.

One short-term action PPL Susquehanna has taken was to lower the operating power level of both units at least until inspection of the Unit 1 turbine is complete. This action reduces the potential for cracking to occur or worsen and maintains the plant's operating safety margin.

PPL Susquehanna will begin to implement turbine modifications that are designed to resolve the turbine blade cracking issue during future scheduled refueling and maintenance outages starting in the spring of 2013.

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