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Common-Cause Failure Database and Analysis System: Event Data Collection, Classification, and Coding (NUREG/CR-6268, Rev. 1)

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Publication Information
Abstract

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NUREG/CR-6268, Rev. 1 (PDF - 558 KB)

Publication Information

Manuscript Completed: August 2007
Date Published: September 2007

Prepared by
T.E. Wierman/INL
D.M. Rasmuson/NRC
A. Mosleh/Univ. of MD

Idaho National Laboratory
Risk and Reliability Assessment Department
P.O. Box 1625
Idaho Falls, ID 83415-3850

Department of Materials and Nuclear Engineering
University of Maryland
College Park, MD 20742-2115

A.D. Salomon, NRC Project Manager

Prepared for
Division of Risk Assessment and Special Projects
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001
NRC Job Code Y6546

Availability Notice

Abstract

This report on the Common-Cause Failure Database and Analysis System presents an overview of common-cause failure (CCF) analysis methods for use in the U.S. commercial nuclear power industry. Idaho National Laboratory staff identify equipment failures that contribute to CCF events through searches of Licensee Event Reports, Nuclear Plant Reliability Data System failure reports, and Equipment Performance and Information Exchange failure reports. The staff then enter the event information into a personal computer-based data analysis system (CCF system). This report summarizes how data are gathered, evaluated, and coded into the CCF system, and describes the process for using the data to estimate probabilistic risk assessment common-cause failure parameters.