Document: NUREG-0800
Document ID: e32f0820-4e33-476e-aa36-4ca8c2c64af0
Document Type: srp
Title: Use of Probabilistic Risk Assessment in Plant-Specific, Risk-Informed Decisionmaking:
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0119/ML011940192.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
CFR Part: 
CFR Title: 

Content:
mpact a particular performance shaping factor (PSF), or a group of PSFs, and are they explicitly addressed in the estimation approach (e.g., if the issue is to address training, is training one of the PSFs used in the human reliability analysis)? a Does success in the application hinge on incorporating the impact of changes in PSFs and, if so, do the current estimates reflect the current status of these PSFs? 0 Is it possible that the particular group of human error events that is affected by the change being analyzed has been truncated? 0 Does the change address new recovery actions? Internal Flooding Does the application affect the screening analysis (e.g., does the application result in the location of redundant trains or components 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? (i.e., 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