ML20009E155
| ML20009E155 | |
| Person / Time | |
|---|---|
| Issue date: | 01/09/2020 |
| From: | Stephen Cumblidge, Ali Rezai NRC/NRR/DNRL/NPHP |
| To: | |
| Rezai A, NRR-DNRL 415-1328 | |
| References | |
| Download: ML20009E155 (6) | |
Text
Coverage Relief Request Update Stephen Cumblidge 2020Industry/NRCNDETechnicalInformation ExchangePublicMeeting
2015PresentationonImpractical ReliefRequests In2015theNRCpreparedapresentationthatcoveredissuesthat commonlyresultedinRequestsforAdditionalInformation(RAIs)
ItcanbefoundinADAMSunderAccessionNumberML15013A266 2
Whathaschangedsince2015?
Thequalityofimpracticalreliefrequestshasimproved substantially ThisimprovementhasresultedinfewerRAIs,buthasnot eliminatedthem ManyRAIsarebasedonmissinginformationorerrorsthe submittal SomeRAIsarerelatedtoissuesthatmakesjustifyingreasonable assuranceofleaktightnessandstructuralintegritymore challenging 3
ThemesinRAIsSince2015 Weldswithlowcoveragemaygetextrascrutiny SomeRAIsareinresponsetooperatingexperience weldswith newissuesmaygetmorequestions SomeRAIsaddressinconsistenciesinsubmittals,suchas includinginformationonsomeweldsbutnotothers AreviewofrecentRAIsdidnotfindastrongcommonissuethat resultedinmanyRAIs 4
WhatInformationisHelpful?
RecentexamplesofRAIshaveaskedforthefollowingadditional informationtohelpprovidereasonableassuranceindifficult cases:
Asummaryoftheevaluationforacceptingtheproposedlimited coveragesrequiredbyASMECodeCaseN716Alternative ClassificationandExaminationRequirementsSectionXI Adiscussionofmeasuresthatcouldensureormonitorthe structuralintegrityofthesubjectwelds,includingthereactor coolantsystemleakagedetectionsystems,routinesystem leakagetestsinaccordancewithIWA/B5000oftheASMECode, SectionXI,boricacidmonitoringprograms,operatorwalkdowns, andanyaugmentedexaminations.
5
Discussion Whathavewemissed?
6