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Category:Letter type:PNP
MONTHYEARPNP 2023-030, License Amendment Request to Revise Renewed Facility Operating License and Permanently Defueled Technical Specifications to Support Resumption of Power Operations2023-12-14014 December 2023 License Amendment Request to Revise Renewed Facility Operating License and Permanently Defueled Technical Specifications to Support Resumption of Power Operations PNP 2023-035, Withdrawal of License Amendment Request - Revise License Condition to Eliminate Cyber Security Plan Requirements2023-12-12012 December 2023 Withdrawal of License Amendment Request - Revise License Condition to Eliminate Cyber Security Plan Requirements PNP 2023-028, Application for Order Consenting to Transfer of Control of License and Approving Conforming License Amendments2023-12-0606 December 2023 Application for Order Consenting to Transfer of Control of License and Approving Conforming License Amendments PNP 2023-026, Pre-Submittal Meeting Presentation - Palisades Nuclear Plant License Transfer Application to Support Resumption of Power Operations2023-09-28028 September 2023 Pre-Submittal Meeting Presentation - Palisades Nuclear Plant License Transfer Application to Support Resumption of Power Operations PNP 2023-025, Request for Exemption from Certain Termination of License Requirements of 10 CFR 50.822023-09-28028 September 2023 Request for Exemption from Certain Termination of License Requirements of 10 CFR 50.82 PNP 2023-023, Special Report High Range Noble Gas Monitor Inoperable2023-08-0909 August 2023 Special Report High Range Noble Gas Monitor Inoperable PNP 2023-018, 2022 Annual Non-Radiological Environmental Operating Report2023-04-25025 April 2023 2022 Annual Non-Radiological Environmental Operating Report PNP 2023-007, and Big Rock Point, 2022 Annual Radioactive Effluent Release and Waste Disposal Reports2023-04-19019 April 2023 and Big Rock Point, 2022 Annual Radioactive Effluent Release and Waste Disposal Reports PNP 2023-008, 2022 Radiological Environmental Operating Report2023-04-18018 April 2023 2022 Radiological Environmental Operating Report PNP 2023-002, 6 to Updated Final Safety Analysis Report2023-03-31031 March 2023 6 to Updated Final Safety Analysis Report PNP 2023-006, Report of Changes to Security Plan, Revision 202023-03-29029 March 2023 Report of Changes to Security Plan, Revision 20 PNP 2023-012, Presentation on Regulatory Path to Reauthorize Power Operations2023-03-16016 March 2023 Presentation on Regulatory Path to Reauthorize Power Operations PNP 2023-001, Regulatory Path to Reauthorize Power Operations2023-03-13013 March 2023 Regulatory Path to Reauthorize Power Operations PNP 2023-004, Report of Changes to Palisades Nuclear Plant Technical Specification Bases2023-03-0808 March 2023 Report of Changes to Palisades Nuclear Plant Technical Specification Bases PNP 2023-005, Response to Palisades Nuclear Plant - Request for Additional Information Related to the Post-Shutdown Decommissioning Activities Report2023-03-0101 March 2023 Response to Palisades Nuclear Plant - Request for Additional Information Related to the Post-Shutdown Decommissioning Activities Report PNP 2022-037, Report of Changes to Security Plan, Revision 192022-12-14014 December 2022 Report of Changes to Security Plan, Revision 19 PNP 2022-036, Response to Request for Additional Information Regarding License Amendment Request for Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme2022-11-0808 November 2022 Response to Request for Additional Information Regarding License Amendment Request for Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme PNP 2022-035, International - Notification of Commitment Cancellations for Remaining Activities Related to Beyond-Design-Basis Seismic Hazard Reevaluations2022-11-0202 November 2022 International - Notification of Commitment Cancellations for Remaining Activities Related to Beyond-Design-Basis Seismic Hazard Reevaluations PNP 2022-026, Request for Exemption from 10 CFR 50.54(w)(1) Concerning Onsite Property Damage Insurance2022-10-26026 October 2022 Request for Exemption from 10 CFR 50.54(w)(1) Concerning Onsite Property Damage Insurance PNP 2022-024, Request for Exemption from 10 CFR 140.11(a)(4) Concerning Primary and Secondary Liability Insurance2022-10-26026 October 2022 Request for Exemption from 10 CFR 140.11(a)(4) Concerning Primary and Secondary Liability Insurance PNP 2022-031, License Amendment Request, Revise License Condition to Eliminate Cyber Security Plan Requirements2022-09-14014 September 2022 License Amendment Request, Revise License Condition to Eliminate Cyber Security Plan Requirements PNP 2022-025, Report of Changes to Palisades Nuclear Plant Security Plan, Revision 182022-09-12012 September 2022 Report of Changes to Palisades Nuclear Plant Security Plan, Revision 18 PNP 2022-032, 2022 Evacuation Time Estimate Report2022-09-0707 September 2022 2022 Evacuation Time Estimate Report PNP 2022-023, Report of Changes to Palisades Nuclear Plant Security Plan, Revision 172022-08-15015 August 2022 Report of Changes to Palisades Nuclear Plant Security Plan, Revision 17 PNP 2022-014, Report of Changes to Palisades Nuclear Plant Site Emergency Plan, Revision 342022-07-13013 July 2022 Report of Changes to Palisades Nuclear Plant Site Emergency Plan, Revision 34 PNP 2022-016, License Amendment Request: Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme2022-07-12012 July 2022 License Amendment Request: Proposed Permanently Defueled Emergency Plan and Permanently Defueled Emergency Action Level Scheme PNP 2022-017, Request for Exemptions from Certain Emergency Planning Requirements of 10 CFR 50.47(b); 10 CFR 50.47(c)(2); and 10 CFR Part 50, Appendix E2022-07-11011 July 2022 Request for Exemptions from Certain Emergency Planning Requirements of 10 CFR 50.47(b); 10 CFR 50.47(c)(2); and 10 CFR Part 50, Appendix E PNP 2022-019, & Big Rock Point - Notification of Expected Date of Transfer of Ownership of Nuclear Plants to Holtec Palisades, LLC; and Notification of Receipt of All Required Regulatory Approvals2022-06-24024 June 2022 & Big Rock Point - Notification of Expected Date of Transfer of Ownership of Nuclear Plants to Holtec Palisades, LLC; and Notification of Receipt of All Required Regulatory Approvals PNP 2022-011, Termination of the Emergency Response Data System (Eros) Link2022-06-13013 June 2022 Termination of the Emergency Response Data System (Eros) Link PNP 2022-010, Certifications of Permanent Cessation of Power Operations and Permanent Removal of Fuel from the Reactor Vessel2022-06-13013 June 2022 Certifications of Permanent Cessation of Power Operations and Permanent Removal of Fuel from the Reactor Vessel PNP 2022-004, 2021 Radiological Environmental Operating Report2022-05-12012 May 2022 2021 Radiological Environmental Operating Report PNP 2022-003, and Big Pock Point Plant - 2021 Annual Radioactive Effluent Release and Waste Disposal Report2022-04-25025 April 2022 and Big Pock Point Plant - 2021 Annual Radioactive Effluent Release and Waste Disposal Report PNP 2022-007, 2021 Annual Non-Radiological Environmental Operating Report2022-04-21021 April 2022 2021 Annual Non-Radiological Environmental Operating Report PNP 2022-012, Response to Request for Additional Information Regarding License Amendment Request to Revise Facility Operating License and Technical Specifications for a Permanently Defueled Condition2022-04-21021 April 2022 Response to Request for Additional Information Regarding License Amendment Request to Revise Facility Operating License and Technical Specifications for a Permanently Defueled Condition PNP 2022-002, Annual Report of Changes in Emergency Core Cooling System Models2022-03-24024 March 2022 Annual Report of Changes in Emergency Core Cooling System Models PNP 2021-012, Report of Changes, Tests and Experiments, and Summary of Commitment Changes2021-10-0707 October 2021 Report of Changes, Tests and Experiments, and Summary of Commitment Changes PNP 2021-029, Pre-Notice of Disbursement from Decommissioning Trust2021-09-0202 September 2021 Pre-Notice of Disbursement from Decommissioning Trust PNP 2021-013, Request for Rescission of Interim Compensatory Measure from Order EA-02-0262021-07-21021 July 2021 Request for Rescission of Interim Compensatory Measure from Order EA-02-026 PNP 2021-020, Request for Partial Exemption from Record Retention Requirements in 10 CFR 50.122021-06-15015 June 2021 Request for Partial Exemption from Record Retention Requirements in 10 CFR 50.12 PNP 2021-005, License Amendment Request to Revise Renewed Facility Operating License and Technical Specifications for Permanently Defueled Condition2021-06-0101 June 2021 License Amendment Request to Revise Renewed Facility Operating License and Technical Specifications for Permanently Defueled Condition PNP 2021-026, Pre-Notice of Disbursement from Decommissioning Trust2021-05-27027 May 2021 Pre-Notice of Disbursement from Decommissioning Trust PNP 2021-016, 2020 Radiological Environmental Operating Report2021-05-12012 May 2021 2020 Radiological Environmental Operating Report PNP 2021-022, 2020 Annual Non-Radiological Environmental Operating Report2021-04-27027 April 2021 2020 Annual Non-Radiological Environmental Operating Report PNP 2021-015, and Big Rock Point, Submittal of 2020 Annual Radioactive Effluent Release and Waste Disposal Report2021-04-21021 April 2021 and Big Rock Point, Submittal of 2020 Annual Radioactive Effluent Release and Waste Disposal Report PNP 2021-017, Schedule Change to Open Phase Condition Detection Implementation2021-04-0101 April 2021 Schedule Change to Open Phase Condition Detection Implementation PNP 2021-003, 2020 Steam Generator Tube Inspection Report2021-03-25025 March 2021 2020 Steam Generator Tube Inspection Report PNP 2021-010, Annual Report of Changes in Emergency Core Cooling System Models2021-03-19019 March 2021 Annual Report of Changes in Emergency Core Cooling System Models PNP 2021-004, Report - Changes to Palisades Nuclear Plant Technical Specifications Bases2021-03-10010 March 2021 Report - Changes to Palisades Nuclear Plant Technical Specifications Bases PNP 2021-006, Pre-Notice of Disbursement from Decommissioning Trust2021-03-0808 March 2021 Pre-Notice of Disbursement from Decommissioning Trust PNP 2021-001, ASME Section XI 90-Day Owner'S Activity Report2021-01-12012 January 2021 ASME Section XI 90-Day Owner'S Activity Report 2023-09-28
[Table view] Category:Licensee 30-Day Written Event Report
[Table view] |
Text
- ~ Entergy Entergy Nuclear Operations, Inc.
Palisades Nuclear Plant 27780 Blue Star Memorial Highway Covert, MI 49043-9530 Tel 269 7642000 Jeffery A. Hardy Regulatory Assurance Manager PNP 2018-044 October 05, 2018 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001
SUBJECT:
Special Report of Inoperability of Main Steam Line Gross Gamma Activity Monitor Palisades Nuclear Plant Docket No. 50-255 License No. DPR-20
Dear Sir or Madam:
The Palisades Nuclear Plant Offsite Dose Calculation Manual, Appendix A, Table 1-1, Action 4, requires that a special report be submitted to the Nuclear Regulatory Commission within 30 days for the inoperability of RIA-2324, main steam safety and dump valve discharge line gross gamma activity monitor, when the instrument is not restored to operable status within seven days. The enclosed report summarizes the actions taken, the cause of the inoperability, and the plans and schedule for restoring the instrument to operable status.
Summary of Commitments This letter contains no new commitments and no revisions to existing commitments.
JAH/mrp
Enclosure:
MAIN STEAM SAFETY AND DUMP VALVE DISCHARGE LINE GROSS GAMMA ACTIVITY MONITOR CC Administrator, Region III, USNRC Project Manager, Palisades, USNRC Resident Inspector, Palisades, USNC
ENCLOSURE MAIN STEAM SAFETY AND DUMP VALVE DISCHARGE LINE GROSS GAMMA ACTIVITY MONITOR BACKGROUND On September 6, 2018, RIA-2324, main steam safety and dump valve discharge line gross gamma activity monitor, failed during monthly testing per Palisades Nuclear Plant Technical Specification Surveillance Procedure MR-14, "Process Monitor Function Checks- Monthly," and was declared non-functional in accordance with plant procedures.
ACTIONS TAKEN The preplanned compensatory action of aiming RIA-2328, main steam line and stack gas alternate radiation monitor, at the atmospheric dump valves was taken in accordance with plant procedures immediately upon RIA-2324 being declared non-functional. A work order was generated to troubleshoot and repair RIA-2324.
The site identified that the detector, RE-2324, had failed during handling as part of MR-14 testing. During this test, the detector is removed from its housing and exposed to a radiation source to verify upscale indication on RIA-2324.
A new detector was obtained from stock and installed on September 20, 2018. The new detector read approximately 20 counts per minute (cpm), which is expected during normal operation. Subsequently, noise was noted on the signal. Troubleshooting of the noise determined an additional issue with the detector preamplifier. As a result, RIA-2324 will remain non-functional until this issue is resolved and post-maintenance testing is complete.
CAUSE OF INSTRUMENT INOPERABILITY The initial cause of RIA-2324 being non-functional was due to a detector that failed during handling as part of monthly testing.
PLANS AND SCHEDULE FOR RESTORING INSTRUMENT OPERABILITY A new detector was installed and energized on September 20, 2018. Troubleshooting identified an additional issue with noise associated with the detector preamplifier. The site plans to declare RIA-2324 functional following the resolution of the noise issue and successful completion of post maintenance testing.
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