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:
spect to what is to be changed? Dependent Failure Analysis • Does the application introduce or suggest new common cause failure contributions? • Does the application introduce new asymmetries that might create subgroups within the common cause failure component groups? • Is the application likely to affect the probabilities of common cause failure? SRP 19-31 Table III-1 (page 2 of 3) Questions to Assist in Establishing the Cause-Effect Relationship Human Reliability Analysis • Does the application involve a procedure change? • Does the application involve a new human action? • Does the application change the available time for human actions? • Does the application affect the human action dependency analysis? • Does the application eliminate or modify an existing human action? • Does the application introduce or modify dependencies between plant instrumentation and human actions? • Is the application concerned with events that have been screened from the model, either in whole or in part? • Does the application impact 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)? • 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? • Is it possible that the particular group of human error events that is affected by the change being analyzed has been truncated? • 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