skip navigation links 
 
 Search Options 
Index | Site Map | FAQ | Facility Info | Reading Rm | New | Help | Glossary | Contact Us blue spacer  
secondary page banner Return to NRC Home Page
Reactor Operational Experience
Reactor Safety Focus Areas
Control Room Habitability
Davis-Besse Reactor Vessel Head Degradation
Fire Protection
Fitness-for-Duty Programs
Access Authorization Programs
Human Factors
Operating Reactor Maintenance Effectiveness
Multiple/Repetitive Degraded Cornerstone Column
PWR Sump Performance
Reactor Pressure Boundary Integrity Issues for Pressurized Water Reactors
Reactor Vessel Integrity
Steam Generator Action Plan
Groundwater Contamination (Tritium) at Nuclear Plants
Results and Databases
Initiating Events
System Studies
Component Performance
Common Cause Failures
Int'l Common Cause Failures
Fire Events
Loss of Offsite Power
Common Cause Failures DB
Reliability and Availability Sys
Contact Us
Related Links
Events Assessment
Industry Trends
Operating Experience Smart Sample (OpESS) Program
Generic Issues
Emergency Response

Operating Reactor Maintenance Effectiveness

The regulatory objective of the Maintenance Rule, 10 CFR 50.65, is to require licensee monitoring of the overall continuing effectiveness of their maintenance programs to ensure the following:

  • Safety-related structures, systems, and components (SSCs) and certain SSCs that are not safety related are capable of performing their intended functions.


  • For equipment that is not safety related, failures will not occur that prevent the fulfillment of safety-related functions.


  • Failures resulting in scrams and unnecessary actuations of safety-related systems are minimized.

For more information on maintenance effectiveness, see the following:

See also:

(To top of page)



Privacy Policy | Site Disclaimer
Friday, June 01, 2007