|
---|
Category:Letter type:WO
MONTHYEARWO 23-0002, Operating Corp., Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-0082023-12-26026 December 2023 Operating Corp., Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-008 WO 23-0014, Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations2023-05-17017 May 2023 Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations WO 23-0009, Financial Protection Levels2023-03-31031 March 2023 Financial Protection Levels WO 22-0056, Operating Corporations Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-0082022-12-19019 December 2022 Operating Corporations Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-008 WO 22-0021, Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report2022-08-29029 August 2022 Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report WO 22-0015, Generation Station - Guarantee of Payment of Deferred Premiums2022-05-0606 May 2022 Generation Station - Guarantee of Payment of Deferred Premiums WO 22-0011, Operating Corp., Financial Protection Levels2022-03-29029 March 2022 Operating Corp., Financial Protection Levels WO 22-0007, Response to NRC Regulatory Issue Summary 2022-01, Preparation and Scheduling of Operator Licensing Examinations2022-03-0909 March 2022 Response to NRC Regulatory Issue Summary 2022-01, Preparation and Scheduling of Operator Licensing Examinations WO 21-0064, Operating Corporation, Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-0082021-12-29029 December 2021 Operating Corporation, Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-008 WO 21-0031, (Wcgs), Supplement to One-Time Request for Exemption from the Biennial Emergency Preparedness2021-08-12012 August 2021 (Wcgs), Supplement to One-Time Request for Exemption from the Biennial Emergency Preparedness WO 21-0027, One-Time Request for Exemption from the Biennial Emergency Preparedness2021-07-29029 July 2021 One-Time Request for Exemption from the Biennial Emergency Preparedness WO 21-0015, License Amendment Request (LAR) for Revision to the Emergency Plan2021-05-25025 May 2021 License Amendment Request (LAR) for Revision to the Emergency Plan WO 21-0020, Operating Corp - Guarantee of Payment of Deferred Premiums2021-05-0707 May 2021 Operating Corp - Guarantee of Payment of Deferred Premiums WO 21-0019, Operating Corp Response to NRC Regulatory Issue Summary 2021-01, Preparation and Scheduling of Operator Licensing Examinations2021-04-14014 April 2021 Operating Corp Response to NRC Regulatory Issue Summary 2021-01, Preparation and Scheduling of Operator Licensing Examinations WO 21-0014, Financial Protection Levels2021-03-30030 March 2021 Financial Protection Levels WO 21-0010, Submittal of Revision 34 to Updated Safety Analysis Report2021-03-11011 March 2021 Submittal of Revision 34 to Updated Safety Analysis Report WO 21-0002, Notification of Readiness for Supplemental Inspection 927232021-01-28028 January 2021 Notification of Readiness for Supplemental Inspection 92723 WO 20-0058, Operating Corporation'S Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-0082020-12-23023 December 2020 Operating Corporation'S Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-008 WO 20-0050, License Amendment Request to Revise Technical Specification 3.6.3 and Surveillance Requirement 3.6.3.1 to Allow Use of a Blind Flange2020-11-10010 November 2020 License Amendment Request to Revise Technical Specification 3.6.3 and Surveillance Requirement 3.6.3.1 to Allow Use of a Blind Flange WO 20-0040, Corrected Revision 33 of the Wolf Creek Generating Station Updated Safety Analysis Report2020-07-23023 July 2020 Corrected Revision 33 of the Wolf Creek Generating Station Updated Safety Analysis Report WO 20-0048, Request for Notice of Enforcement Discretion for Technical Specifications 3.8.1, AC Sources - Operating2020-06-30030 June 2020 Request for Notice of Enforcement Discretion for Technical Specifications 3.8.1, AC Sources - Operating WO 20-0047, Guarantee of Payment of Deferred Premiums2020-05-0707 May 2020 Guarantee of Payment of Deferred Premiums WO 20-0029, License Amendment Request to Revise Specification 5.5.16 for Permanent Extension of Type a and Type C Leak Rate Test Frequencies2020-04-20020 April 2020 License Amendment Request to Revise Specification 5.5.16 for Permanent Extension of Type a and Type C Leak Rate Test Frequencies WO 20-0024, Financial Protection Levels2020-03-31031 March 2020 Financial Protection Levels WO 19-0059, Docket No. 50-482: Wolf Creek Nuclear Operating Corporation'S Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-0082019-12-23023 December 2019 Docket No. 50-482: Wolf Creek Nuclear Operating Corporation'S Summary of Actions Implemented for EA-18-165, Confirmatory Order, NRC Inspection Report 05000482/2019010 and NRC Investigation Report 4-2018-008 WO 19-0033, License Amendment Request for Revision to Technical Specification 3.7.5, Auxiliary Feedwater (AFW) System2019-08-29029 August 2019 License Amendment Request for Revision to Technical Specification 3.7.5, Auxiliary Feedwater (AFW) System WO 19-0031, Supplement 1 to Application to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 42019-08-0808 August 2019 Supplement 1 to Application to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 4 WO 19-0011, Financial Protection Levels2019-03-27027 March 2019 Financial Protection Levels WO 19-0013, Supplement to Application to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 42019-03-11011 March 2019 Supplement to Application to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 4 WO 18-0045, Submittal of Response to Requests for Additional Information (RAI) Regarding License Amendment Request (LAR) for Revision to the Emergency Plan2018-11-19019 November 2018 Submittal of Response to Requests for Additional Information (RAI) Regarding License Amendment Request (LAR) for Revision to the Emergency Plan WO 18-0047, Timeline for Response to RAI for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term2018-11-15015 November 2018 Timeline for Response to RAI for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term WO 18-0044, Clean Revised Technical Specification Pages for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term2018-11-15015 November 2018 Clean Revised Technical Specification Pages for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term WO 18-0036, Operating Corporation (WCNOC) - Notification of Readiness for Supplemental Inspection2018-08-15015 August 2018 Operating Corporation (WCNOC) - Notification of Readiness for Supplemental Inspection WO 18-0034, Operating Corp., Additional Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term2018-08-0909 August 2018 Operating Corp., Additional Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term WO 18-0031, Inservice Inspection (ISI) Program Relief Request from the Requirements of American Society of Mechanical Engineers (ASME) Code Case N-666-1, Weld Overlay of Class 1, 2, and 3 Socket Welded Connections, Section XI, Division 12018-07-23023 July 2018 Inservice Inspection (ISI) Program Relief Request from the Requirements of American Society of Mechanical Engineers (ASME) Code Case N-666-1, Weld Overlay of Class 1, 2, and 3 Socket Welded Connections, Section XI, Division 1 WO 18-0016, License Amendment Request for Revision to the Emergency Plan2018-05-0909 May 2018 License Amendment Request for Revision to the Emergency Plan WO 18-0014, Response to NRC Regulatory Issue Summary 2018-02, Preparation and Scheduling of Operator Licensing Examinations2018-04-16016 April 2018 Response to NRC Regulatory Issue Summary 2018-02, Preparation and Scheduling of Operator Licensing Examinations WO 18-0015, Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1)2018-04-0505 April 2018 Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1) WO 18-0004, Response to Request for Additional Information Re License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of ...2018-01-15015 January 2018 Response to Request for Additional Information Re License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of ... WO 17-0093, License Amendment Request (LAR) for Revision to the Emergency Plan2017-12-19019 December 2017 License Amendment Request (LAR) for Revision to the Emergency Plan WO 17-0092, Request for Regulatory Conference (EA-17-149)2017-11-0808 November 2017 Request for Regulatory Conference (EA-17-149) WO 17-0065, Submittal of LER 17-S01-00 for Wolf Creek Nuclear Operating Corp., Regarding Contraband Introduced Into the Protected Area Boundary2017-10-10010 October 2017 Submittal of LER 17-S01-00 for Wolf Creek Nuclear Operating Corp., Regarding Contraband Introduced Into the Protected Area Boundary WO 17-0042, Operating Corporation Supplement to RAI Response Regarding Adopting New EAL Scheme2017-04-26026 April 2017 Operating Corporation Supplement to RAI Response Regarding Adopting New EAL Scheme WO 17-0041, Supplement to Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report2017-04-20020 April 2017 Supplement to Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report WO 17-0033, Response to NRC Regulatory Issue Summary 2017-03, Preparation and Scheduling of Operator Licensing Examinations.2017-04-17017 April 2017 Response to NRC Regulatory Issue Summary 2017-03, Preparation and Scheduling of Operator Licensing Examinations. WO 17-0023, Submittal of Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report2017-03-27027 March 2017 Submittal of Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report WO 17-0026, Errata for License Amendment Request for Transition to Westinghouse Core Design and Safety Analyses2017-03-22022 March 2017 Errata for License Amendment Request for Transition to Westinghouse Core Design and Safety Analyses WO 17-0013, Response to Request for Additional Information Regarding License Amendment Request for Adopting Revised Emergency Action Level Scheme2017-03-16016 March 2017 Response to Request for Additional Information Regarding License Amendment Request for Adopting Revised Emergency Action Level Scheme WO 17-0009, Revision 30 to Updated Safety Analysis Report2017-03-0909 March 2017 Revision 30 to Updated Safety Analysis Report WO 16-0068, Docket No. 50-482: Request for Regulatory Conference2016-12-21021 December 2016 Docket No. 50-482: Request for Regulatory Conference 2023-05-17
[Table view] Category:Licensee 30-Day Written Event Report
MONTHYEARWO 17-0023, Submittal of Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report2017-03-27027 March 2017 Submittal of Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report WO 14-0092, Submittal of Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report2014-12-15015 December 2014 Submittal of Technical Specification 5.6.8 - Post Accident Monitoring (PAM) Report ML0712402692007-05-22022 May 2007 Summary of Telephone Conference Call Held on March 20, 2007, Between the U.S. Nuclear Regulatory Commission and Wolf Creek Nuclear Operating Corporation, Concerning Draft Requests for Additional Information Pertaining to the Wolf Creek, Uni ML0712402862007-05-20020 May 2007 Summary of Telephone Conference Call Held Between the U.S. Nuclear Regulatory Commission and Wolf Creek Nuclear Operating Corporation, Concerning Draft Requests for Additional Information Pertaining to the Wolf Creek, Unit 1, LRA WO 04-0056, Special Report 2004-001 Re Inoperability of the a Train of Reactor Vessel Level Indicating System for Greater than 30 Days2005-01-0404 January 2005 Special Report 2004-001 Re Inoperability of the a Train of Reactor Vessel Level Indicating System for Greater than 30 Days 2017-03-27
[Table view] Category:Written Event Report (30 or 60 day)
[Table view] |
Text
WJLF CREEK 'NUCLEAR OPERATING CORPORATION Donna Jacobs January 4, 2005 Vice President Operations and Plant Manager WO 04-0056 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
Subject:
Docket No. 50-482: Special Report 2004-001 Gentlemen:
Special Report 2004-001, related to the unavailability of Post Accident Monitoring (PAM) equipment, is being submitted in accordance with Wolf Creek Generating Station (WCGS)
Technical Specification 5.6.8, "PAM Report." This report contains information regarding the inoperability of the "A" train of Reactor Vessel Level Indicating System (RVLIS) for greater than thirty days. Attachment I provides the Special Report. Attachment II lists Wolf Creek Nuclear Operating Corporation's commitments contained in this letter.
If you have any questions concerning this matter, please contact me at (620) 364-4246, or Mr.
Kevin Moles at (620) 364-4126.
Very truly yours, Jacobs DJ/rig Attachment l: Special Report 2004-001 Attachment II: List of Commitments cc: J. N. Donohew (NRC), w/a D. N. Graves (NRC), w/a B. S. Mallett (NRC), w/a I-,- .
Senior Resident Inspector (NRC), w/a RO. Box 411 Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/FIHC/VET
Attachment I to WO 04-0056 Page 1 of 2 Special Report 2004-001 Background Information The Reactor Vessel Level Indicating System (RVLIS) is used to assist in detecting the presence of a gas bubble or void in the reactor vessel, to assist in detecting the approach to inadequate core cooling, and to provide indication of the formation of a void in the reactor coolant system during forced flow conditions.
There are two trains of RVLIS, each utilizing two differential pressure transmitters: Narrow Range and Wide Range that measure the pressure drop from the bottom of the reactor vessel to the top. This measurement provides an indication of the reactor vessel water level or relative void content of the fluid surrounding the core. Each RVLIS train includes narrow and wide range measurements to cover different flow behaviors, ranging from no reactor coolant pump operation to any combination of reactor coolant pumps running.
The outputs from the transmitters are density compensated and displayed on four reactor vessel water level indicators in the Main Control Room. The four level indicators are divided into two separate channels, each containing both Narrow Range and Wide Range indications.
For the purposes of Technical Specification 3.3.3, a channel is considered a train.
The Limiting Condition for Operation (LCO) .for Technical Specification (T.S.) 3.3.3, "Post Accident Monitoring (PAM) Instrumentation," requires two channels of RVLIS to be OPERABLE in MODES 1, 2, and 3. Required Action A.1 requires restoring required channels to OPERABLE.status in 30 days with one required channel inoperable. Condition B of TS 3.3.3 applies when the Required Action and associated Completion Time of Condition A is not met.
Required Action B.1 requires following the directions of Specification 5.6.8, "PAM: Report."
Specification 5.6.8 requires a report be submitted outlining the preplanned alternate method for monitoring, the indicated cause of the inoperability, and the plans and schedule for restoring the RVLIS channels to OPERABLE status.
Description of Event:
WCGS declared the "A" train of RVLIS INOPERABLE on November 24, 2004 at 08:00 (CST),
and entered Condition A of LCO 3.3.3. The resistance temperature detector (RTD) BBTE 1314 output on this train is indicating high and intermittently falling outside of the acceptable range.
Attachment I to WO 04-0056 Page 2 of 2 Preplanned Alternate Methods of Monitoring RCS Parameters:
Alternate means of monitoring reactor vessel level are available to operators in the Main Control Room while RVLIS is not OPERABLE:
- 1. Core exit thermocouples indications: Instruments are located in the Main Control Room on panel RP81ANB and through monitoring of the Nuclear Plant Information System (NPIS) computer display.
- 2. Pressurizer level indication: Main Control Room indicators BBLI0459A, BBLI0460A and BBLI0461.
- 3. Reactor Coolant System Subcooling Monitor: Indicators BBTI1390A and BBTI1390B are located in the Main Control Room. In the event the subcooling monitor is not available, this information may be obtained using steam tables available in the Main Control Room along with Wide Range Resistance Temperature instruments or the core thermocouples.
While RVLIS indication is used in a limited way in WCGS Emergency Operating Procedures, guidance is provided in these procedures to direct operators to use the above alternate instrumentation should RVLIS be unavailable. Such guidance is provided in the following procedures:
Critical Safety Function Status Trees EMG F-0 Response To Degraded Core Cooling EMG FR-C2 Response To Saturated Core Conditions EMG FR-C3 Response To Inadequate Core Cooling EMG FR-Cl Natural Circulation Cooldown With Steam Void In Vessel EMG ES-05 (Without RVLIS)
Cause of Inoperabilitv:
The "A" train of RVLIS was determined to be INOPERABLE due to indications that the density compensating RTD, BBTE1314, on train "A" was reading higher than the corresponding indicator on train "B".
Plans and Schedule for Restoring the Instrumentation Channels of the Function to Operable Status:
RVLIS transmitters are located outside containment in the Auxiliary Building. The RTDs and corresponding leads to the instrument channels are located inside the Containment bioshield and are inaccessible to personnel while operating at power. Therefore, further troubleshooting may only be done during shutdown periods. As such, additional troubleshooting and necessary correction actions will be taken during the next refueling outage, scheduled to begin in April 2005.
Attachment II to WO 04-0056 Page 1 of 1 LIST OF COMMITMENTS The following table identifies the actions committed to by Wolf Creek Nuclear Operating Corporation (WCNOC) in this document. Any other statements in this submittal are provided for information purposes and are not considered to be commitments. Please direct questions regarding these commitments to Mr. Kevin Moles, WCNOC Manager Regulatory Affairs, at (620) 364-4126.
COMMITMENT Due Date/Event WCGS will perform troubleshooting and the necessary During the next refueling repair and testing of transmitter instruments associated outage, scheduled to begin with RVLIS. in April 2005.