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Category:Letter type:ULNRC
MONTHYEARULNRC-06891, Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC00052024-06-26026 June 2024 Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC0005 ULNRC-06892, Independent Spent Fuel Storage Installation Registration of Dry Spent Fuel Storage Canister HGMPC00062024-06-26026 June 2024 Independent Spent Fuel Storage Installation Registration of Dry Spent Fuel Storage Canister HGMPC0006 ULNRC-06884, Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC00022024-06-12012 June 2024 Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC0002 ULNRC-06885, Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC00032024-06-12012 June 2024 Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC0003 ULNRC-06886, Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC00042024-06-12012 June 2024 Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC0004 ULNRC-06882, Independent Spent Fuel Storage Installation Registration of Dry Spent Fuel Storage Canister HGMPC00122024-05-16016 May 2024 Independent Spent Fuel Storage Installation Registration of Dry Spent Fuel Storage Canister HGMPC0012 ULNRC-06877, Final Safety Analysis Report Revision OL-27 and Technical Specification Bases Revision 252024-05-0606 May 2024 Final Safety Analysis Report Revision OL-27 and Technical Specification Bases Revision 25 ULNRC-06856, CFR 50.59 and 10 CFR 72.48 Summary Report2024-05-0101 May 2024 CFR 50.59 and 10 CFR 72.48 Summary Report ULNRC-06869, Submittal of Callaway, Unit 1, 2023 Annual Radiological Environmental Operating Report2024-04-30030 April 2024 Submittal of Callaway, Unit 1, 2023 Annual Radiological Environmental Operating Report ULNRC-06876, Registration of Dry Spent Fuel Storage Canister HGMPC00102024-04-25025 April 2024 Registration of Dry Spent Fuel Storage Canister HGMPC0010 ULNRC-06866, Submittal of Cycle 26 Commitment Change Summary Report2024-04-17017 April 2024 Submittal of Cycle 26 Commitment Change Summary Report ULNRC-06871, Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC00072024-04-17017 April 2024 Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC0007 ULNRC-06872, Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC00082024-04-17017 April 2024 Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Storage Canister HGMPC0008 ULNRC-06863, Submittal of Annual Exposure Report for 20232024-03-20020 March 2024 Submittal of Annual Exposure Report for 2023 ULNRC-06852, Owners Activity Reports (OAR-1 Forms) for Cycle/Refuel 262024-03-0505 March 2024 Owners Activity Reports (OAR-1 Forms) for Cycle/Refuel 26 ULNRC-06858, Completion of License Renewal Activities Prior to Entering the Period of Extended Operation2024-02-21021 February 2024 Completion of License Renewal Activities Prior to Entering the Period of Extended Operation ULNRC-06853, Submittal of 2023 Fitness for Duty Performance Data Per Per 10 CFR 26.7172024-01-29029 January 2024 Submittal of 2023 Fitness for Duty Performance Data Per Per 10 CFR 26.717 ULNRC-06847, Supplement to Relief Request from Requirements of ASME BPV Code, Section XI, Subsection Iwl Regarding Examination and Testing of the Unbonded Post-Tensioning System (Relief Request C3R-01)2023-12-21021 December 2023 Supplement to Relief Request from Requirements of ASME BPV Code, Section XI, Subsection Iwl Regarding Examination and Testing of the Unbonded Post-Tensioning System (Relief Request C3R-01) ULNRC-06849, License Renewal Resolution for Commitments 34 and 35 Perform Evaluation of Crack Initiation and Propagation in Steam Generator Divider Plate and Tube-To-Tubesheet Welds2023-12-20020 December 2023 License Renewal Resolution for Commitments 34 and 35 Perform Evaluation of Crack Initiation and Propagation in Steam Generator Divider Plate and Tube-To-Tubesheet Welds ULNRC-06844, Request for Exemption from Specific Requirements in 2023 Security Rule, Enhanced Weapons, Firearms Background Checks, and Security Event Notification2023-12-0707 December 2023 Request for Exemption from Specific Requirements in 2023 Security Rule, Enhanced Weapons, Firearms Background Checks, and Security Event Notification ULNRC-06827, Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2023-11-20020 November 2023 Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ULNRC-06824, Response to Request for Additional Information Regarding Operating Quality Assurance Manual (Oqam) Revision 36A2023-08-17017 August 2023 Response to Request for Additional Information Regarding Operating Quality Assurance Manual (Oqam) Revision 36A ULNRC-06830, Transmittal of Updated Technical Specification Markup and Clean Pages for License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak2023-08-15015 August 2023 Transmittal of Updated Technical Specification Markup and Clean Pages for License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak ULNRC-06223, Minor Correction to License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies (LDCN 2020-0004)2023-07-25025 July 2023 Minor Correction to License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies (LDCN 2020-0004) ULNRC-06799, Submittal of Licensee Event Report 2022-003-01, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications2023-07-13013 July 2023 Submittal of Licensee Event Report 2022-003-01, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications ULNRC-06821, Post-Audit Follow-Up Information in Support of Callaway'S License Amendment Request and Proposed Exemption to Allow Use of Framatome Gaia Fuel (LDCN 22-0002) (EPID L-2022-LLA-0150 and EPID L-2022-LLE-00301)2023-06-21021 June 2023 Post-Audit Follow-Up Information in Support of Callaway'S License Amendment Request and Proposed Exemption to Allow Use of Framatome Gaia Fuel (LDCN 22-0002) (EPID L-2022-LLA-0150 and EPID L-2022-LLE-00301) ULNRC-06822, Additional Information Regarding Request for NRC Approval of Operating Quality Assurance Manual (Oqam) Revision 36a2023-06-14014 June 2023 Additional Information Regarding Request for NRC Approval of Operating Quality Assurance Manual (Oqam) Revision 36a ULNRC-06815, Request for NRC Approval of Operating Quality Assurance Manual, Revision 36a2023-06-0505 June 2023 Request for NRC Approval of Operating Quality Assurance Manual, Revision 36a ULNRC-06818, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate .2023-06-0505 June 2023 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate . ULNRC-06816, Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015)2023-05-0909 May 2023 Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06812, Submittal of 2022 Annual Radiological Environmental Operating Report2023-04-27027 April 2023 Submittal of 2022 Annual Radiological Environmental Operating Report ULNRC-06806, Submittal of Radiological Emergency Response Plan, Revision 552023-04-12012 April 2023 Submittal of Radiological Emergency Response Plan, Revision 55 ULNRC-06807, Submittal of Single Positive Test Forms2023-04-0303 April 2023 Submittal of Single Positive Test Forms ULNRC-06801, CFR 50.46 Annual Report Regarding ECCS Evaluation Model Revisions2023-03-30030 March 2023 CFR 50.46 Annual Report Regarding ECCS Evaluation Model Revisions ULNRC-06798, Submittal of Status of Plant Decommissioning Funding and ISFSI Decommissioning Funding Plan2023-03-30030 March 2023 Submittal of Status of Plant Decommissioning Funding and ISFSI Decommissioning Funding Plan ULNRC-06803, Submittal of Response to Request for Additional Information Regarding Results of Steam Generator Tube In-Service Inspection2023-03-29029 March 2023 Submittal of Response to Request for Additional Information Regarding Results of Steam Generator Tube In-Service Inspection ULNRC-06751, Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control2023-03-29029 March 2023 Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control ULNRC-06804, Submittal of Nuclear Property Insurance Reporting2023-03-29029 March 2023 Submittal of Nuclear Property Insurance Reporting ULNRC-06805, Transmittal of Special Report 2023-02 Non-Functionality of Containment Hydrogen Analyzer Channel for Greater than 30 Days2023-03-21021 March 2023 Transmittal of Special Report 2023-02 Non-Functionality of Containment Hydrogen Analyzer Channel for Greater than 30 Days ULNRC-06802, Special Report 2023-01 (PAM Report); Non-Functionality of a Post-Accident Monitoring Instrument2023-03-0909 March 2023 Special Report 2023-01 (PAM Report); Non-Functionality of a Post-Accident Monitoring Instrument ULNRC-06795, Submittal of Fitness for Duty Reports for 2022, Including Single Positive Test Forms2023-01-24024 January 2023 Submittal of Fitness for Duty Reports for 2022, Including Single Positive Test Forms ULNRC-06794, Submittal of Fitness for Duty Program Data for 20222023-01-24024 January 2023 Submittal of Fitness for Duty Program Data for 2022 ULNRC-06787, Response to Request for Additional Information Regarding License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015)2022-12-0808 December 2022 Response to Request for Additional Information Regarding License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06781, License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2022-12-0101 December 2022 License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ULNRC-06780, Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-0072022-11-30030 November 2022 Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-007 ULNRC-06772, 10 CFR 50.59 and 10 CFR 72.48 Summary Report2022-11-23023 November 2022 10 CFR 50.59 and 10 CFR 72.48 Summary Report ULNRC-06777, Operating Quality Assurance Manual (Oqam) Revision 362022-11-16016 November 2022 Operating Quality Assurance Manual (Oqam) Revision 36 ULNRC-06779, ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves2022-11-14014 November 2022 ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves ULNRC-06765, License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Testing Frequencies (LDCN 2020-0004)2022-11-0303 November 2022 License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Testing Frequencies (LDCN 2020-0004) ULNRC-06773, Results of Steam Generator Tube In-Service Inspection2022-11-0101 November 2022 Results of Steam Generator Tube In-Service Inspection 2024-06-26
[Table view] Category:Licensee Response to Notice of Violation
MONTHYEARULNRC-06779, ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves2022-11-14014 November 2022 ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves ML22318A1892022-11-14014 November 2022 Enclosure 1 - Ameren Missouri'S Response to Green NCV 05000483/2022010-03 ULNRC-06493, Supplemental Response to Notice of Violation, Inspection Report No. 50-483/20160022019-04-11011 April 2019 Supplemental Response to Notice of Violation, Inspection Report No. 50-483/2016002 IR 05000483/20170072017-11-0101 November 2017 Reply to Notice of Violation 05000483/2017007-01 ULNRC-06394, Reply to Notice of Violation 05000483/2017007-012017-11-0101 November 2017 Reply to Notice of Violation 05000483/2017007-01 ULNRC-06378, Supplemental Response to Notice of Violation Inspection Report No. 50-483/20160022017-06-27027 June 2017 Supplemental Response to Notice of Violation Inspection Report No. 50-483/2016002 ULNRC-06365, Updated Response to Notice of Violation Inspection Report 50-483/20160022017-04-27027 April 2017 Updated Response to Notice of Violation Inspection Report 50-483/2016002 ULNRC-06326, Reply to a Notice of Violation Inspection Report 05000-483/20160022016-09-0909 September 2016 Reply to a Notice of Violation Inspection Report 05000-483/2016002 IR 05000483/20080032008-09-0404 September 2008 Reply to Notice of Violation: EA-08-190, Inspection Report No. 50-483/2008003 ULNRC-05528, Reply to Notice of Violation: EA-08-190, Inspection Report No. 50-483/20080032008-09-0404 September 2008 Reply to Notice of Violation: EA-08-190, Inspection Report No. 50-483/2008003 ML0608304122006-03-14014 March 2006 IR 05000483-05-005, Union Electric Co., Reply to Notice of Violation IR 05000483/20050052006-03-14014 March 2006 IR 05000483-05-005, Union Electric Co., Reply to Notice of Violation ML0535702612005-12-14014 December 2005 Reply to Inspection No 50-483/05-004 IR 05000483/20050042005-12-14014 December 2005 Callaway, Reply to Inspection No 50-483/05-004 ULNRC-04867, Reply to Notice of Violation Inspection Report No. 50-483/2003-0082003-07-21021 July 2003 Reply to Notice of Violation Inspection Report No. 50-483/2003-008 ULNRC-04848, Reply to Preliminary White Finding Regarding Inspection Report No. 50-483/2003-0082003-06-10010 June 2003 Reply to Preliminary White Finding Regarding Inspection Report No. 50-483/2003-008 ULNRC-04653, Reply to Notice of Violation for Inspection Report 50-483/2002-007, Enforcement Action EA-02-0462002-05-0808 May 2002 Reply to Notice of Violation for Inspection Report 50-483/2002-007, Enforcement Action EA-02-046 ML0202903752002-01-22022 January 2002 Response to Enforcement Action (EA-01-005) from Union Electric Co 2022-11-14
[Table view] |
Text
Timothy E. Herrmann, P.E.
~rt. Site Vice President Ameren Missouri
'iWAmeren Callaway Energy Center T 573.619.2155 F 573.676.4056 MISSOURI therrmann@ameren.com September 9, 2016 ULNRC-06326 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 2.201 Ladies and Gentlemen:
DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.
RENEWED FACILITY OPERATING LICENSE NPF-30 REPLY TO A NOTICE OF VIOLATION INSPECTION REPORT NO. 50-483/2016002 This letter provides Ameren Missouri's response to the Notice of Violation identified for the Callaway Plant in NRC's letter dated August 12, 2016, "Callaway Plant - NRC Integrated Inspection report 05000483/2016002 and Notice of Violation," from Nicholas H. Taylor to Fadi Diya. The response to the violation is presented in the attachment to this letter.
None of the material in the response is considered proprietary.
This letter does not contain new commitments.
Please contact me for any questions you may have or for any additional information you may require in regards to this response.
~s~TJ----* T. E. Herrmann Site Vice President Attachment 1: Response to Violation
- Fulton, MD 65251 AmerenMissouri.com ..............
.......................................................................................................... PO Box 620, MC CA-460 ..............
STARS
ULNRC-06326 September 9, 2016 Page 2 cc: Mr. Kriss M. Kennedy Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. L. John Klos Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop O8H4 Washington, DC 20555-0001
ULNRC-06326 September 9, 2016 Page 3 Index and send hardcopy to QA file(s):
A160.0761 A170.0103 Hardcopy:
Certrec Corporation 6100 Western Place, Suite 1050 Fort Worth, TX 76107 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)
Electronic distribution for the following can be made via NOV ULNRC Distribution:
F. M. Diya T. E. Herrmann R. C. Wink T. B. Elwood Corporate Communications NSRB Secretary RRA Department File STARS Regulatory Affairs Mr. Jay Silberg (Pillsbury Winthrop Shaw Pittman LLP)
Missouri Public Service Commission to ULNRC-06326 September 9, 2016 Page 4 Statement of Violation During an NRC inspection conducted for the Callaway Plant from June 6, 2016 to June 30, 2016, a violation of NRC requirements was identified. The violation was documented in the Notice of Violation provided as Enclosure 1 to the NRCs letter Callaway Plant - NRC Integrated Inspection report 05000483/2016002 and Notice of Violation, dated August 12, 2016. The violation was identified as follows:
10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, requires, in part, that conditions adverse to quality are promptly identified and corrected.
Contrary to the above, from November 2010 through June 2016, the licensee failed to promptly correct a condition adverse to quality. Specifically, the licensee failed to adequately resolve water hammer and corrosion issues which were previously identified by the NRC as non-cited violation 05000483/2010006-01. The failure to resolve these issues resulted in subsequent safety-related equipment failures.
This violation is associated with a Green Significance Determination Process finding.
Reason for the Violation Callaway staff and management involved in the water hammer and corrosion issues associated with the Essential Service Water (ESW) system did not recognize the aggregate risk presented by these issues and, in some cases, accepted symptoms of system degradation as part of normal operations.
Management did not effectively leverage the Corrective Action Program to drive timely resolution of the equipment issues. Decisions surrounding priority and resource allocation to address corrosion issues did not reflect technical conservatism and resulted in continuing degradation rather than timely resolution.
Corrective Steps Taken and Results Achieved:
Corrective actions that have been completed to date, including results achieved (as applicable), are as follows:
- Repairs or cooling coil replacements were completed on affected ESW-supplied copper-nickel room coolers and containment air coolers1. Specifically, cooling coil replacements were completed on three ESW-supplied copper-nickel room coolers: A Safety Injection (SI) Pump 1
Affected ESW-supplied components include the: A and B Safety Injection (SI) Pump Room Coolers (SGL09A/B), A and B Residual Heat Removal (RHR) Pump Room Coolers (SGL10A/B), A Centrifugal Charging Pump (CCP) Room Cooler (SGL12A), A Containment Spray Pump Room Cooler (SGL13A), B Motor Driven Auxiliary Feedwater Pump (MDAFP)
Room Cooler (SGF02B), and B and C Containment Air Coolers (SGN01B/C). Prior to Refuel Outage(RF) 21 cooling coil replacements were completed for the 'A' Motor Driven Auxiliary Feedwater Pump Room Cooler (SGF02A), the 'A' and 'B' Component Cooling Water Room Coolers (SGL11A&B), the 'A' and 'B' Electrical Penetration Room Coolers (SGL15A&B),
and the 'A' Spent Fuel Pool Cooling Pump Room Cooler (SGG04A).
to ULNRC-06326 September 9, 2016 Page 5 Room Cooler (SGL09A), A Centrifugal Charging Pump (CCP) Room Cooler (SGL12A), and B Motor Driven Auxiliary Feedwater Pump (MDAFP) Room Cooler (SGF02B). Callaway entered Cycle 22 of operation with no corrosion-related ESW leakage. An evaluation of the susceptibility to corrosion-induced leakage is documented in a Prompt Operability Determination which concluded that the ESW System is Operable. The containment air cooler tube structural integrity has been evaluated as acceptable until Refuel Outage 25, based on the observed degradation mechanism and available margin.
- More robust gaskets were installed at locations that experienced damage during Engineered Safety Features Actuation System (ESFAS) tests, as well as at locations included by an extent of condition review2.
- A test simulating a Loss of Offsite Power (LOOP) was conducted on the 'B' train of the ESW system. The test demonstrated that the system and components are capable of withstanding pressure transients representative of an actual event. The test results and an evaluation of differences between the test and the most limiting pressure transient are documented in a Prompt Operability Determination which concluded that the ESW System is Operable.
- A thorough Extent of Condition review was performed. As part of this Extent of Condition review, prior NRC findings dating back to 2010 against 10 CFR Part 50 Appendix B Criterion XVI were reviewed to verify that compliance has been restored. Additionally, open Long Term Corrective Actions and recurring adverse conditions related to high risk significant systems were reviewed to confirm compliance with the stations Quality Assurance Program.
No additional adverse conditions were identified.
- The station performed upper tier cause evaluations for Condition Report (CR) 201507734, CAP Behaviors and Leadership Oversight, and CR 201506340, AP-913 Consequential Failure Events Negative Trend. These evaluations focused significantly on organizational behaviors and issues. Specifically, actions from CR 201507734 address the Corrective Action Program as a foundational element, including behaviors and accountability that relate to timely resolution of Conditions Adverse to Quality. Actions from CR 201506340 address behaviors related to risk recognition, technical advocacy, and proactive resolution of equipment issues including assignment of priorities and resources. All corrective actions associated with these evaluations have been completed, and the station is in full compliance with Criterion XVI of 10 CFR Part 50, Appendix B.
2 Robust replacement gaskets were installed at the A and B Control Room Air Conditioning Unit (SGK04A/B) inlets and outlets, A and B Class 1E Air Conditioning Unit (SGK05A/B) inlets and outlets, and the B CCW Room Cooler (SGL11B) header.
to ULNRC-06326 September 9, 2016 Page 6 Corrective Steps That Will Be Taken:
Corrective steps remaining for the water hammer and corrosion issues cited in the Notice of Violation are as follows:
- Replace remaining safety-related ESW-supplied copper-nickel room cooler coils by the end of Refueling Outage 22 (Fall 2017).3
- Replace containment air cooler coils, with a design to enhance corrosion resistance of the coils, by the end of Refueling Outage 25 (Spring 2022).
- Develop the ESW System Transient Design Basis for a limiting water column separation and collapse pressure transient. This will involve a transient analysis to determine pressures and dynamic forces experienced by components in the ESW system during such a limiting transient, as well as a comparison of peak momentary pressures and forces to design requirements. Any nonconforming components identified from the analysis will be documented and resolved through the Corrective Action Program. This analysis of the piping, hangers, and major components will be complete by April 30, 2017.
Date when Full Compliance will be Achieved:
Corrective actions to address the programmatic shortfalls are complete. The station is in full compliance with 10 CFR Part 50, Appendix B, Criterion XVI.
ESW corrosion and pressure transient issues requiring further resolution are as follows:
- Corrosion issues affecting safety-related ESW-supplied copper-nickel room coolers will be resolved through room cooler coil replacements to be completed by the end of Refueling Outage 22 (Fall 2017).
- Corrosion issues affecting containment air coolers will be resolved by replacing the coils with a design to enhance corrosion resistance of the coils. Replacement of the coils in all four containment air coolers will be completed by the end of Refueling Outage 25 (Spring 2022).
- The ESW System transient analysis and identification of non-conforming structural components (piping, hangers, and major components) will be completed by April 30, 2017. A supplemental response identifying actions required as a result of the analysis will be provided by June 30, 2017.
The above actions will be tracked to completion by the Corrective Action Program.
3 Room coolers to be replaced by the end of Refueling Outage 22 (Fall 2017) include: B Safety Injection (SI) Pump Room Cooler (SGL09B), A and B Residual Heat Removal (RHR) Pump Room Coolers (SGL10A/B), B Centrifugal Charging Pump (CCP) Room Cooler (SGL12B), A and B Containment Spray Pump Room Coolers (SGL13A/B), and B Spent Fuel Pool (SFP) Room Cooler (SGG04B).