Document: NUREG-0800
Document ID: 081a217e-3707-4233-964d-398c43368dd2
Document Type: srp
Title: MAINTENANCE RULE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0708/ML070810004.pdf
Revision Date: 2023-06
Chapter: 17
Section ID: 17.6
CFR Part: 
CFR Title: 

Content:
applicant’s submittal should identify and describe the program procedures and documents (including computer software and data) that prescribe or govern monitoring in accordance with 10 CFR 50.65(a), including the items below. A. The process for determining which SSCs within the scope of the MR program will be monitored in accordance with paragraph 50.65(a)(1) as prescribed by program procedures. Procedures should address the method for establishing risk-informed, performance-based criteria (including industry operating experience) to determine initially which SSCs must have goals established and monitoring activities performed in accordance with paragraph 50.65(a)(1). Specific SSCs, if any, whose performance or condition will be monitored initially per paragraph 50.65(a)(1) and the basis thereof will be reviewed by NRC inspection. i. The process for establishing performance or condition monitoring goals for SSCs in 50.65(a)(1) status, including how goals are ensured to be commensurate with safety and how IOE is taken into account, as prescribed by program procedures. The process should address how reliability goals will be expressed in terms of MR functional failures (MRFFs), i.e., failures of one or more of the functions for which the SSC was included in the MR program scope, and/or maintenance-preventable functional failures (MPFFs), including treatment of repetitive MRFFs or MPFFs. The method of monitoring against availability or unavailability goals should also be discussed, including safety/risk category considerations and conditions under which unavailability will be charged. For each SSC to be in 50.65(a)(1) status, the performance monitoring (availability and reliability) or condition monitoring goals established, the basis thereof, how the goals are commensurate with safety and how IOE was taken into account will be reviewed during NRC inspection. ii. The process for disposition of SSCs in 50.65(a)(1) status that do not meet goals, including