Document: NUREG-0800
Document ID: b07c8dd1-23f6-41f1-a3ba-aa378f9ea59a
Document Type: srp
Title: RISK-INFORMED INSERVICE INSPECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0325/ML032510135.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.8
CFR Part: 
CFR Title: 

Content:
veloping implementation and monitoring programs. The primary goal for this element is to assess the performance of piping under the proposed change by establishing performance-monitoring strategies to confirm the assumptions and analyses that were conducted to justify the change. Inspection scope, intervals, and techniques should be clearly defined. The inspection scope and techniques should address all relevant failure mechanisms that could significantly impact the reliability and integrity of the piping. The fourth element involves documenting the analyses and submitting the request for NRC review and approval. The submittal is reviewed by NRC in accordance with this SRP. The following areas related to the use of RI-ISI program for piping are reviewed. I.1 Element 1: Define the Proposed Change to ISI Program The licensee's RI-ISI submittal is reviewed to verify that the proposed changes to the ISI program have been defined in general terms. Those aspects of the plant's licensing bases that may be affected by the proposed change, including, but not limited to, rules and regulations, FSAR, technical specifications, and licensing conditions, are reviewed. In addition, licensing commitments are reviewed. Particular piping systems and welds that are affected by the change in inspection practices are reviewed. Specific revisions to inspection scope, schedules, locations, and techniques are reviewed. The licensee’s program and procedures guiding the evaluations leading to future changes to the ISI program without prior NRC approval are reviewed. Plant systems and functions that rely on the affected piping are also reviewed. The staff reviews available engineering studies, methods, codes, applicable plant-specific and industry data and operational experience, PRA findings, and research and analysis results relevant to the proposed change. Plant-specific experience with inspection program results is reviewed and characterization relative to the effectiveness of past