Document: NUREG-0800
Document ID: ac43f632-9db1-4857-9f56-bfba45965456
Document Type: srp
Title: * These are modifications to a plant’s design, operations, or other activities that require NRC approval. These modifica
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0232/ML023250195.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19
CFR Part: 
CFR Title: 

Content:
mponents into the same flood zone)? • Does the application introduce new flooding sources or increase existing potential flood inventories? • Does the application affect the status/availability of flood mitigation devices? • Does the application affect flood propagation pathways? • Does the application affect critical flood heights? • Does the application affect timing considerations used in the flooding analysis (e.g., flood flow rates or flood egress rates)? Quantification • Does the application change any of the basic event probabilities? • Does the application change relative magnitudes of probabilities? • Does the application only make probabilities smaller? • Is the new result needed in a short-time scale? • Does the application necessitate a change in the truncation limits for the model? • Does the application affect the "delete terms" used during the quantification process? (That is, does the application introduce new combinations of maintenance actions or operating modes that are deleted during the base case quantification process using the delete function?) • Does the application affect equipment credited for recovery actions, including credit for inter-system or inter-unit crossties? Analysis of Results • Does the application necessitate an assessment of uncertainty, and is it to be qualitative or quantitative? • Are there uncertainties in the application that could be clarified by the application of sensitivity studies? • Does the application strategy necessitate an importance analysis to rank contributions? • Does the application necessitate the performance of an importance, uncertainty, or sensitivity analysis of the base case PRA? Plant Damage State Classification • Does the application impact the choice of parameters used to define plant damage states? • Do the key plant damage states (KPDSs) utilized adequately represent the results of the Level 1 analysis by including the plant damage states that have a