Problems continue with the Unit 1 reactor at the Nine Mile Point nuclear plant in New York. The unit had a fire two weeks ago and an automatic reactor shutdown last weekend. Early yesterday morning, a feedwater valve opened unexpectedly. This resulted in a rise in reactor water level, which initiated a main turbine trip. Technicians manually closed all twelve feedwater flow control valves and the reactor water level returned to normal.
Unit 1 at Nine Mile Point is a General Electric boiling water reactor that went online in 1969. It is one of the two oldest reactors still in service in the United States. It shares that dubious distinction with Unit 1 at the Oyster Creek nuclear power plant, which lost offsite power during Hurricane Sandy.