Energia i regulacje · 15/09/2015

Watts Bar Nuclear Plant, Unit No. 1; Application and Amendment to Facility Operating License Involving Proposed No Significant Hazards Consideration Determination

The U.S. Nuclear Regulatory Commission (NRC) is considering issuance of an amendment to Facility Operating License No. NFP-90, issued to the Tennessee Valley Authority (the licensee), for operation of the Watts Bar Nuclear Plant (WBN), Unit No. 1. The proposed amendment would modify the technical specifications (TSs) to define support systems needed in the first 48 hours after a unit shutdown when steam generators are not available for heat removal. The proposed amendment would also make changes consistent with Technical Specification Task Force (TSTF) Traveler TSTF-273-A, Revision 2, to provide clarifications related to the requirements of the Safety Function Determination Program (SFDP). The proposed license amendment was submitted by letter dated June 17, 2015, and was supplemented by letters dated July 14, August 28, and September 3, 2015. The NRC staff previously made a proposed determination that the amendment involves no significant hazards consideration. By letter dated September 3, 2015, the licensee provided additional information that expanded the scope of the amendment request as originally noticed. The September 3, 2015, supplement proposed new modifications to TS 3.3.