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Category:Letter
MONTHYEARML24038A0322024-02-0707 February 2024
(Vcsns), Unit 1, 10 CFR 21 Report - Emergency Diesel Generator Flash Contactor Relay
IR 05000395/20230042024-01-31031 January 2024
Integrated Inspection Report 05000395/2023004
ML24022A1582024-01-22022 January 2024
(Vcsns), Unit 1 - Reply to a Notice of Violation: EA-23-093
ML24022A1202024-01-22022 January 2024
Notification of Target Set Inspection and Request for Information (NRC Inspection Report 05000395/2024403)
ML24018A0112024-01-18018 January 2024
CFR 21 Report Emergency Diesel Generator Fuel Oil Piping
IR 05000395/20240112024-01-17017 January 2024
Notification of VC Summer Station Comprehensive Engineering Team Inspection - U.S. Nuclear Regulatory Commission Inspection Report 05000395/2024011
ML23361A1042023-12-21021 December 2023
Inservice Testing Program for Pumps and Valves Fifth Interval Update and Associated Relief and Alternative Requests
IR 05000395/20230912023-12-21021 December 2023
Final Significance Determination of a White Finding and Notice of Violation and Assessment Followup Letternrc Inspection Report 05000395/2023091
ML23354A1802023-12-20020 December 2023
301 Examination Report with Cover Letter
ML23347A0492023-12-12012 December 2023
Technical Specification Bases Changes Updated Through November 2023
ML23334A2462023-11-30030 November 2023
Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
ML23334A2372023-11-30030 November 2023
(Vvsns), Unit 1 - Annual Commitment Change Summary Report
ML23332A1942023-11-28028 November 2023
(Vcsns), Unit 1, Correction of Typographical Error in License Amendment Request - Inverter Allowed Outage Time (AOT) Extension
ML23317A2242023-11-0909 November 2023
(Vcsns), Unit 1 - License Amendment Request - Inverter Allowed Outage Time (AOT) Extension
ML23289A1172023-11-0303 November 2023
Tribal Request for Scoping Comments Concerning the Environmental Review of the V.C. Summer SLRA
ML23289A1152023-11-0303 November 2023
Ltr to R. Nelson - Request for Scoping Comments Concerning the Environmental Review of the V.C. Summer SLRA
ML23289A1162023-11-0303 November 2023
Ltr to W. Emerson - Request for Scoping Comments Concerning the Environmental Review of the V.C. Summer SLRA
IR 05000395/20234032023-11-0101 November 2023
Material Control and Accounting Program Inspection Report 05000395/2023403 Cover
IR 05000395/20230032023-11-0101 November 2023
Integrated Inspection Report 05000395/2023003
ML23284A1792023-10-16016 October 2023
Subsequent License Renewal Application Online Reference Portal
ML23275A0142023-10-11011 October 2023
SLRA - Acceptance and Opportunity for Hearing - Letter
ML23284A1662023-10-10010 October 2023
(Vcsns), Unit 1 - Request for Regulatory Conference; (EA-23-093)
IR 05000395/20230902023-10-0404 October 2023
NRC Inspection Report 05000395/2023090 and Preliminary Yellow Finding and Apparent Violation
IR 05000395/20230112023-09-27027 September 2023
Focused Engineering Inspection Report 05000395/2023011
ML23250A3112023-09-20020 September 2023
Request to Revise Reactor Vessel Material Surveillance Capsule Withdrawal Schedules
ML23244A2352023-09-18018 September 2023
Request to Use a Subsequent Edition of the ASME Code, Section XI
ML23230A0012023-09-15015 September 2023
Request to Use a Provision of a Previous Edition of the ASME Boiler and Pressure Vessel Code, Section XI, for Non-Destructive Examinations
ML23235A0432023-09-0505 September 2023
Receipt and Availability of the Subsequent License Renewal Application
IR 05000395/20234012023-08-30030 August 2023
Security Baseline Inspection Report 05000395/2023401
ML23242A1192023-08-29029 August 2023
(Vcsns), Unit 1 - Inservice Inspection (ISI) Owner'S Activity Report (OAR) for Refueling Outage 27
ML23243B0362023-08-25025 August 2023
Request for FEMA Consultation on the Dominion Energy Proposal to Consolidate the Emergency Operations Facility for the Virgil C. Summer Nuclear Station Unit 1
IR 05000395/20230052023-08-23023 August 2023
Updated Inspection Plan for Virgil C. Summer Nuclear Station (Report 05000395 2023005)
ML23233A1752023-08-17017 August 2023
Application for Subsequent Renewed Operating License
IR 05000395/20230022023-08-14014 August 2023
Integrated Inspection Report - Integrated Inspection Report 05000395/2023002 and Apparent Violation
IR 05000395/20230102023-08-12012 August 2023
Biennial Problem Identification and Resolution Inspection Report 05000395/2023010
ML23207A1102023-07-26026 July 2023
NRC Regulatory Issues Summary 2023-01 Preparation and Scheduling of Operator Licensing Examinations
IR 05000395/20234412023-07-17017 July 2023
95001 Supplemental Inspection Report 05000395/2023441 and Follow Up Assessment Letter
ML23190A0012023-07-0909 July 2023
Special Report 2023-003 Inoperable Radiation Monitoring Instrumentation Channel
ML23187A5092023-07-0606 July 2023
Request for Federal Emergency Management Agency Consultation on the Dominion Energy Proposal to Consolidate the Emergency Operations Facility for the Virgil C. Summer Nuclear Station Unit 1
ML23178A1682023-06-26026 June 2023
2022 Annual Report of Emergency Core Cooling System (ECCS) Model Changes Pursuant to the Requirements of 10 CFR 50.46
ML23173A1052023-06-22022 June 2023
Special Report 2023-002 Inoperable Loose-Part Monitoring System Channel
ML23163A2352023-06-12012 June 2023
Request to Use a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI, for the SPS Sixth Inservice Inspection (Isi) Intervals and VCSNS Fifth ISI Interval
ML23159A2332023-06-0808 June 2023
License Amendment Request - Emergency Response Organization Augmentation Time Change, Emergency Operations Facility Relocation and Other Emergency Plan Changes
ML23156A3092023-06-0505 June 2023
Requalification Program Inspection Virgil C. Summer Nuclear Station Unit 1 - 05000395/2023003
2024-02-07
[Table view]
Category:Written Event Report (30 or 60 day)
MONTHYEARML23190A0012023-07-0909 July 2023
Special Report 2023-003 Inoperable Radiation Monitoring Instrumentation Channel
ML22272A5432022-09-29029 September 2022
(VCSNS) Unit 1, Special Report 2022-004-00, Inoperable Radiation Monitoring Instrumentation Channel
ML22215A2392022-08-0202 August 2022
(VCSNS) Unit 1, Special Report 2022-003-01, Inoperable Radiation Monitoring Instrumentation Channel
ML22126A0092022-05-0606 May 2022
Inoperable Radiation Monitoring Instrumentation Channel
ML22025A3752022-01-25025 January 2022
Special Report 2022-001 Inoperable Loose-Part Monitoring System Channels
ML21088A4282021-03-29029 March 2021
Special Report 2021-001 Inoperable Loose-Part Monitoring System Channel
ML20069F2702020-03-0909 March 2020
Voluntary Supplement to Special Report 2019-003 RCS Subcooling Margin Monitor Inoperable
ML19280D3802019-10-0707 October 2019
Special Report 2019-003 - RCS Subcooling Margin Monitor Inoperable
RC-05-0116, Special Report (Spr) 2005-032005-07-29029 July 2005
Special Report (Spr) 2005-03
RC-05-0099, Special Report 2005-0012005-07-0707 July 2005
Special Report 2005-001
RC-04-0171, Special Report 2004-0022004-10-13013 October 2004
Special Report 2004-002
ML0218602052002-07-0202 July 2002
Special Report 2002-001. Digital Metal Impact Monitor System Has One Channel Which Has Been Inoperable in Excess of 30 Days
2023-07-09
[Table view] |
Text
V. C. Summer Nuclear Station Bradham Blvd & Hwy 215, Jenkinsville, SC 29065
~ Dominion Mailing Address: ~ Energy P.O. Box 88, Jenkinsville, SC 29065 Dominion Energy.co m March 9, 2020 Attn : Document Control Desk Serial No.19-388A U. S. Nuclear Regulatory Commission VCS-LIC/JRB RO Washington , DC 20555-0001 Docket No. 50-395 License No. NPF-12 DOMINION ENERGY SOUTH CAROLINA, INC.
VIRGIL C. SUMMER NUCLEAR STATION (VCSNS) UNIT 1 VOLUNTARY SUPPLEMENT TO SPECIAL REPORT 2019-003 RCS SUBCOOLING MARGIN MONITOR INOPERABLE Dominion Energy South Carolina, Inc. (DESC) is subm itting this voluntary supplement to Special Report 2019-003 (NRC Adams Accession Number ML192800380), previously submitted pursuant to the requirements of Technical Specifications (TS) 3.3.3.6 and 6.9.2. This update addresses one of the required Reactor Coolant System (RCS) Subcooling Margin Instrument Loop/Indicator monitoring channels being inoperable for more than thirty (30) days.
During calibration of RCS Subcooling Margin Monitor 'B', in accordance with Surveillance Requirement 4.3.3.6 (Table 3.3-1O; 10, 12), it was identified that the monitor was inoperable for certain analog inputs. The monitor was declared inoperable on August 26, 2019.
The failure of RCS Subcooling Margin Monitor 'B' (ITM004998) was captured in the station's corrective action program (CR-19-03018) . The monitor's power supply and computer board assembly (A5 card) were shipped to an offsite vendor for troubleshooting and repair. While RCS Subcooling Margin Monitor 'B' is inoperable, RCS Subcooling Margin Monitor 'A' remains operable and is available to monitor RCS subcooling . Additionally , an alternate method of monitoring is available via the plant process computer subcooling calculation .
The initial attempts to fully repair RCS Subcooling Margin Monitor 'B' were unsuccessful. VCSNS is continuing to troubleshoot the monitor in an attempt to repair it. Concurrently, VCSNS is developing an Engineering Change Request to replace the monitor during its upcoming Refueling Outage RF-25 (May 2020), if repair attempts are unable to restore operability.
Should you have any questions, please call Michael S. Moore at (803) 345-4752.
Sincerely,
~ ippa~d Site Vice President V.C . Summer Nuclear Station
Serial No. 19-388A Docket No. 50-395 Page 2 of 2 Commitments contained in this letter: None cc: G. J. Lindamood - Santee Cooper L. Dudes - NRC Region II S. A Williams - NRC Project Manager NRC Resident Inspector
Serial No. 19-388A Voluntary Supplement to Special Report 2019-003: RCS Subcooling Margin Monitor Inoperable be: page 1 of 1 be: R. R. Haselden - VCS J. H. Hamilton - VCS C. D. Sly - IN2SE M. S. Moore - VCS J. A. Langan - MPS N. Turner- NAPS R. Philpot - SPS James Roth - IN2SE Stacey Nelson - IN2SE W. S. Blair - RS RTS (CR-19-03018)
File (818.08)
PRSF-VCS Concurrences See Correspondence Routing and Approval CHOP Sheet Verification of Accuracy None Action Plan None Changes to the UFSAR, USAR, QA Topical Report. ISFSI FSAR, DSAR or PSDAR None
