ML18137A173: Difference between revisions

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{{#Wiki_filter:Risk-Informed InserviceInspectionSection XI, Appendix RApril 17, 2018 Original Risk
{{#Wiki_filter:Risk-Informed Inservice Inspection Section XI, Appendix R April 17, 2018
-Informed Application In-service Inspection: RG 1.178 EPRI method based code case, including PRA quality, approved -could simply be made part of Appendix RWCAP method based code case review abandoned All issues that caused WCAP method code case review to be abandoned must be revived and resolved.Rather then repeating EPRI method review, better to simply complete WCAP code case review then combine in Appendix RCompleting WCAP code case review may require re
 
-visiting entire methodology Risk-Informed In
Original Risk-Informed Application In-service Inspection: RG 1.178 EPRI method based code case, including PRA quality, approved - could simply be made part of Appendix R WCAP method based code case review abandoned All issues that caused WCAP method code case review to be abandoned must be revived and resolved.
-service InspectionsWCAP methodology needs some clarificationAll degradation mechanism in one weld versus every weld calculatedBetter definition of a segment Crediting of non
Rather then repeating EPRI method review, better to simply complete WCAP code case review then combine in Appendix R Completing WCAP code case review may require re-visiting entire methodology
-ISI inspections as ISI inspections (e.g., FAQ)Overwhelming of relative importance measures with a few very high estimated risk welds.Quality of the PRA when using the relative importance measuresOther?
 
Risk-Informed In
Risk-Informed In-service Inspections WCAP methodology needs some clarification All degradation mechanism in one weld versus every weld calculated Better definition of a segment Crediting of non-ISI inspections as ISI inspections (e.g., FAQ)
-service InspectionsWCAP methodology needs some clarificationPFM calculations used to estimate frequency for importance measures and for change in riskApplicability of newer PFM calculationsConsistency with other applications that use PFMOther?}}
Overwhelming of relative importance measures with a few very high estimated risk welds.
Quality of the PRA when using the relative importance measures Other?
 
Risk-Informed In-service Inspections WCAP methodology needs some clarification PFM calculations used to estimate frequency for importance measures and for change in risk Applicability of newer PFM calculations Consistency with other applications that use PFM Other?}}

Latest revision as of 02:53, 21 October 2019

April 17, 2018 Section XI, Appendix, R - NRC Presentation
ML18137A173
Person / Time
Issue date: 07/23/2018
From: Stephen Cumblidge
NRC/NRR/DMLR/MPHB
To: Steve Ruffin
NRC/NRR/DMLR/MPHB
Cumblidge S, NRR-DMLR 415-2823
Shared Package
ML18137A170 List:
References
Download: ML18137A173 (4)


Text

Risk-Informed Inservice Inspection Section XI, Appendix R April 17, 2018

Original Risk-Informed Application In-service Inspection: RG 1.178 EPRI method based code case, including PRA quality, approved - could simply be made part of Appendix R WCAP method based code case review abandoned All issues that caused WCAP method code case review to be abandoned must be revived and resolved.

Rather then repeating EPRI method review, better to simply complete WCAP code case review then combine in Appendix R Completing WCAP code case review may require re-visiting entire methodology

Risk-Informed In-service Inspections WCAP methodology needs some clarification All degradation mechanism in one weld versus every weld calculated Better definition of a segment Crediting of non-ISI inspections as ISI inspections (e.g., FAQ)

Overwhelming of relative importance measures with a few very high estimated risk welds.

Quality of the PRA when using the relative importance measures Other?

Risk-Informed In-service Inspections WCAP methodology needs some clarification PFM calculations used to estimate frequency for importance measures and for change in risk Applicability of newer PFM calculations Consistency with other applications that use PFM Other?