United States Nuclear Regulatory Commission - Protecting People and the Environment

RPV Upper Head Issues -- News and Correspondence for 2018

This page lists, in chronological order, general news and correspondence on RPV upper head issues for 2018.

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Date Description
12/10/2018 Regulatory Issue Summary 2018-06 "Clarification of the Requirements for Reactor Pressure Vessel Upper Head Bare Metal Visual Examinations,"
11/19/2018 Operating Experience Smart Sample (OpESS) 2018/01, "Evaluation of Licensee Actions Taken in Response to 10 CFR Part 21 Notification of the Potential Existence of Defects Related to Control Rod Drive Mechanism (CRDM) Thermal Sleeves," November 19, 2018
08/29/2018 NRC Information Notice 2018-10, "Thermal Sleeve Flange Wear Leads to Stuck Control Rod at foreign Nuclear Plant"
07/17/2018 NSAL-18-1, "Thermal Sleeve Flange Wear Leads to Stuck Control Rod,"

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Page Last Reviewed/Updated Thursday, October 10, 2019