Shippingport Atomic Power Station (PWR). Technical progress report, July 26, 1976--January 25, 1977

The Shippingport Atomic Power Station has remained shut down since February 4, 1974 for repair of the main unit turbine and for modifications for installation and operation of the third nuclear core, the Light Water Breeder Reactor (LWBR) Core. The receipt and storage of all new movable fuel assemblies for the LWBR Core was completed. Seven (of the twelve) blanket modules were received and installed in the reactor vessel. In addition, seven movable fuel assemblies were also installed in the reactor vessel. Receipt, storage, and installation in the reactor vessel of all fuel assemblies is expected to be completed early in the next report period. Repairs to the main unit turbine generator are essentially complete. Modification effort on the upgrading of the Shippingport reactor safety systems, including auxiliary control room, containment isolation system, and safety injection system is in the final stage of completion. The Nuclear Regulatory Commission (NRC) issued in November 1976 a supplement to its Safety Evaluation Report (SER) in which it completed the review of all uncompleted items in the initial SER of July 1976. The NRC concluded that ''the Light Water Breeder Reactor Core may be operated in the Shippingport Atomic Power Station as proposed without undue risk to the health and safety of the public''