Document: NUREG-0800
Document ID: 4e1d86bd-74a5-4678-8bc0-ffce3ba28ea0
Document Type: srp
Title: RISK-INFORMED INSERVICE TESTING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0428/ML042880272.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.7
CFR Part: 
CFR Title: 

Content:
nd, when appropriate, throughout the industry. In particular, monitoring that is performed as part of the Maintenance Rule (10 CFR Part 50.65) implementation can be used in the RI-IST program when the monitoring performed under the Maintenance Rule is sufficient for the components in the RI-IST program. As stated in Section 2.3 of Regulatory Guide 1.174, if an application requires monitoring of structures, systems, and components (SSCs) not included in the Maintenance Rule, or SSCs that need a greater resolution of monitoring than the Maintenance Rule (component- vs. train- or plant-level monitoring), it may be advantageous for a licensee to adjust the Maintenance Rule monitoring program rather than to develop additional monitoring programs for RI-IST purposes. Therefore, the licensee may have adjusted the Maintenance Rule performance criteria to meet the guidance in Regulatory Position 3.3 of Regulatory Guide 1.175 (i.e., the same guidance provided in Section Il.B.2 above). 3. Feedback and Corrective Action Program The reviewer should examine the licensee's corrective action program to verify that it is initiated by component failures that are detected by the IST program as well as by other mechanisms (e.g., normal plant operation, inspections). The reviewer should verify that the licensee's corrective action procedures meets the acceptance guidelines specified in Section ll.B.3. The reviewer should verify that corrective action evaluations are given to the licensee's PRA group so that any necessary model changes and regrouping can be periodically done by the PRA group, if appropriate. 3.9.7-25 Rev. 0-August 1998 The reviewer should verify that procedures are in place to ensure that corrective actions affecting the IST program get documented, as appropriate, in the licensee's RH-IST program. 4. Periodic Reassessment The reviewer should assess the licensee's procedures for conducting the periodic risk-informed IST program review to ensure that it * prompts the