DS397 Saf Use Mod RRs with NUSSC comments 18-06-2010

45utilization activity involve revising orreplacing an evaluation methodologydescribed in the safety analysis report,used in establishing the design basesor used in the safety analyses?Does the proposed modification orutilization activity involve a test,experiment or activity not described inthe safety analysis report, where aSSC is utilized or controlled in amanner that is outside the referencebounds of the design for that SSC, oris inconsistent with analyses ordescription in the safety analysisreport?Does the proposed change require achange to any of the following otherthan an editorial or typographicchange:• Licence• safety analysis report?• Operating Limits and Conditions(operational limits and conditions)?• Safety related operatingprocedures?YesYesYesResult of the Safety Screen (tick the appropriate box)12All the questions have been answered “NO”.The proposed change does have minor effect on safety.Safety Category 3 “Minor effect on Safety” should berecommended.Go to Part 4 Safety Categorization.At least one question has been answered “YES”.A Safety Evaluation (Part 3) is required to evaluate thesafety implications of the project prior to assigning asafety category. Go to Part 3 Safety Evaluation.Part 3 - Safety EvaluationEvaluation Questions (tick the box for the appropriate answer)Effect on Accidents and Malfunctions Previously EvaluatedNo. Question Answer Justification1Could the proposed change affect thefrequency of occurrence of a design basisaccident previously evaluated in thesafety analysis report?YesNoNoNoNo43