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:
ractice, take industry operating experience into account, and are reasonable and sensible, i.e., achievable and sufficiently sensitive to degraded performance or condition such that meeting them could adequately demonstrate effective control of the performance or condition of the SSC through appropriate preventive maintenance and such that the SSC would remain capable of performing its function(s) and not fail in a manner adverse to safety. The procedures should address how effective control of performance or condition of SSCs in 50.65(a)(2) status will be demonstrated (i.e., included in the formal PM program, determined to be inherently reliable, visual inspection during walkdowns to meet licensee requirements that already exist, or determined to be allowed to run to failure as discussed below). Discuss how the PM program is determined to be effective in achieving the desired results of minimizing component failures and increasing or maintaining SSC performance, including performance of applicable PM activities, inspection and testing, predictive maintenance, inspection and testing, performance trending, ongoing maintenance effectiveness evaluation, and condition monitoring of passive SSCs (e.g., structures) and SSCs for which no failures are deemed acceptable. For each SSC to be in 50.65(a)(2) status, performance (availability and/or reliability) criteria or condition monitoring criteria and the bases thereof, the extent to which they are consistent with industry guidance, as endorsed by NRC, commensurate with safety, including PRA insights, and good engineering practice, reasonable and sensible, etc., i.e., achievable and sufficiently sensitive to degraded performance or condition, such that meeting them could adequately demonstrate effective control of the performance of the SSC through appropriate preventive maintenance and such that the SSC would remain capable of performing its function(s) and not fail in a manner adverse to safety will be reviewed during NRC