ENS 53422
ENS Event | |
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04:00 May 23, 2018 | |
Title | Part 21 - Wear of Thermal Sleeve in Westinghouse Control Rod Drive Mechanisms |
Event Description | The following notification is an excerpt from the received report:
Westinghouse nuclear steam supply system (NSSS) plants that have thermal sleeves in the control rod drive mechanism (CRDM) penetration tubes, wear of the thermal sleeve flange against the tube could have safety consequences that were not previously considered. Recent operating experience, during startup procedures at an Electricite de France (EdF) plant, has shown the possibility for the flange remnant from a thermal sleeve to interfere with control rod movement. Potential affected plants include, A. W. Vogtle 1 & 2, Braidwood 1 & 2, Byron 1 & 2, Callaway, Catawba 1 & 2, Comanche Peak 1 & 2, Diablo Canyon 1 & 2, McGuire 1 & 2, Millstone 3, Seabrook, Sequoyah 1 & 2, Shearon Harris, South Texas 1 & 2, Watts Bar 1 & 2, Wolf Creek, Beaver Valley 1 & 2, D.C. Cook 1 & 2, Indian Point 2 & 3, North Anna 1 & 2, Point Beach 1 & 2, Prairie Island 1 & 2, R. E. Ginna, Salem 1 & 2, Surry 1 & 2, and Turkey Point 3 & 4. Name and address of the individual or individuals informing the Commission. James A. Gresham Westinghouse Electric Company 1000 Westinghouse Drive, Suite 259 Cranberry Township, Pennsylvania 16066 Direct tel: (412) 374-4643 Direct fax: (724) 940-8560 e-mail: greshaja@westinghouse.com |
Where | |
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Westinghouse Cranberry Township, Pennsylvania (NRC Region 1) | |
Organization: | Westinghouse Electric Company |
Reporting | |
10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
Time - Person (Reporting Time:+10.32 h0.43 days <br />0.0614 weeks <br />0.0141 months <br />) | |
Opened: | James Gresham 14:19 May 23, 2018 |
NRC Officer: | Thomas Kendzia |
Last Updated: | May 23, 2018 |
53422 - NRC Website
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Westinghouse with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 544402019-12-12T05:00:00012 December 2019 05:00:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Fractured and Dislocated Control Rod Drive Mechanism Thermal Sleeve ENS 534222018-05-23T04:00:00023 May 2018 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Wear of Thermal Sleeve in Westinghouse Control Rod Drive Mechanisms ENS 530232017-10-11T07:00:00011 October 2017 07:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Notification - Hpsi Motor Lead Insulation Gouged ENS 523782016-11-18T05:00:00018 November 2016 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Notification - Control Rod Guide Card Excessive Wear ENS 523102016-08-31T15:26:00031 August 2016 15:26:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Westinghouse Life Line D Type Lac Induction Motor Failure 2019-12-12T05:00:00 | |