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Category:Deficiency Report (per 10CFR50.55e and Part 21)
MONTHYEARML23100A1072023-04-10010 April 2023 Framatome Part 21 Report Re Erroneous Change of State for Circuit Breaker ML23229A0052022-02-11011 February 2022 Ametek Solidstate Controls, Final 10CFR21 Report of a Potential Defect, Vishay Diodes. Reference Interim Report ML21092A129 Issued April 1, 2021 ML21260A0072021-09-0909 September 2021 Ametek Solidstate Controls, Notification of Potential Defect - 10CFR Part 21 Report Re Omron Timer Relay ML21092A1292021-04-0101 April 2021 Ametek Solidstate Controls - Notification of Potential Defect ML20366A0472020-11-18018 November 2020 Curtiss-Wright 10 CFR Part 21 Notification for SF-1154 Hydraulic Fluid Batch 17BLVS293 ML20049A0752020-02-11011 February 2020 C&D Technologies, Inc. -10 CFR Part 21 Evaluation Regarding Container Failure in KCR-07 Batteries ML19347A4262019-12-10010 December 2019 General Atomics - Reportable Occurrence Under 10CFR21: Reported Failure in Analog High Range Radiation Monitor (RP-2C) ML19317D0932019-10-25025 October 2019 Engine Systems, Inc., 10CFR21 Reporting of Defects and Non-Compliance - Engine Systems, Inc. Report No. 10 CFR21-0127, Rev. 0, Emd Fuel Injectors - Seized Plunger and Bushing ML19190A0442019-06-0707 June 2019 10 CFR Part 21 Reporting of Defects for Introl Positioner 890265-010 - Cw SAS Initial Report No. 10CFR21-48 ML19121A1552019-04-15015 April 2019 Curtiss-Wright Nuclear Division, Enertech - 10 CFR Part 21 Notification for SF-1154 Hydraulic Fluid ML19002A2042018-12-21021 December 2018 to Engine Systems, Inc., Part 21 Report Re Emd Fuel and Soakback Pumps - Potentially Undertorqued Cover Bolts ML18353A4282018-11-30030 November 2018 Engine Systems, Inc., 10CFR21-0123, Rev. 0, for a 10CFR21 Reportable Condition on Emd Fuel and Soakback Pumps ML17354A0262017-11-27027 November 2017 Paragon Energy Solutions 10 CFR Part 21 Final Report of Potential Defect of Switch Assembly with OT-2 Homewood Products Corp Switch and Contact Block ML17179A3782017-06-0707 June 2017 TE Connectivity - Part 21 Transfer of Information TE-023 ML17114A0702017-04-13013 April 2017 Part 21 Notification - Identified Fisher 546S Electro-Pneumatic Transducers Standard Mounting Brackets Failed Seismic Testing Standards ML17081A4532017-03-20020 March 2017 Part 21 - Plastic Jar Dedication Sampling ML17026A4142017-01-20020 January 2017 C&D Technologies, Inc. - Part 21 - Plastic Jar Dedication Sampling ML16342A9782016-12-0202 December 2016 ATC Nuclear - Part 21 - Pawl Fasteners Failed to Provide Sufficient Structural Support ML16321A4512016-10-21021 October 2016 Part 21 Reporting of Defects and Noncompliance ML16294A2642016-10-18018 October 2016 Part 21 Report - Defective Current to Pressure Transducers ML16243A4722016-08-25025 August 2016 Part 21 Reporting of Defects and Noncompliance ML16139A8342016-05-10010 May 2016 Electroswitch - Transmittal of 10CFR Part 21 Reporting of Defects and Noncompliance Regarding Vendor Inspection of Electroswitch Corporation Docket No. 99900833 ML16098A4472016-03-21021 March 2016 Emerson Process Management, LLC - Part 21 Report Regarding Plug/Stem Assembly, Per Watts Bar ML16084A3022016-03-18018 March 2016 Emerson Process Management, LLC - Part 21 Report Regarding Groove Pin Dedication, Per Watts Bar ML15103A4852015-04-0707 April 2015 Itt Engineered Valves - 2nd Interim Report to the NRC of 10 CFR 21 Event 50285, Reported by Itt 07/18/14 Concerning M I Diaphragms, Customer Testing ML15099A0422015-04-0202 April 2015 Notification of Part 21 Report - Potentially Defective Pressure & Temperature Switches ML15099A0432015-04-0202 April 2015 Amendment to Event Number 50299, 10 CFR Part 21 Notification, Potentially Defective Pressure & Temperature Switches ML15049A4582015-02-0606 February 2015 Thermo Gamma-Metrics, LLC - Part 21 Report Regarding Shutdown Margin Monitor Environmental Qualification Noncompliance ML15014A0612015-01-0808 January 2015 Notification of Potential Part 21 Re Failure of Sbm Type Switches ML14337A0942014-11-24024 November 2014 Notification of Potential Part 21 - Lack of Proper Power Supply Indication ML14329A0632014-11-19019 November 2014 Notification of Potential Part 21 Re Lack of Proper Power Supply Indication ML14274A0522014-09-22022 September 2014 Final Report 10CFR Part 21 Evaluation Regarding Misaligned Separators in LCR-25 Standby Batteries, Revision 1 - Original Letter Did Not Include the List of Affected Utilities ML14261A1502014-09-17017 September 2014 Interim Report to the NRC of 10 CFR 21 Event 50285, Reported by Itt 07/18/14 Concerning M1 Diaphragms, Customer Testing ML14213A0992014-07-24024 July 2014 Notification of Part 21 Report - Potentially Defective Pressure & Temperature Switches IR 05000391/20140012014-06-23023 June 2014 Construction Deficiency Report 50-391/2014-01 - Potential Opening of Littelfuse Part Number FLAS005.T Fuses - Final Report ML14174A0422014-06-23023 June 2014 Construction Deficiency Report 50-391/2014-01 - Potential Opening of Littelfuse Part Number FLAS005.T Fuses - Final Report ML14160A7832014-06-0303 June 2014 Part 21 Report Regarding Watts Bar, Unit 2, Potentially Defective Fuses Installed ML14364A1682014-06-0202 June 2014 Flowserve Corp., Vermont, Formal Evaluation of Deviations Reported - Notification of Defect - Watts Bar II ML14034A1882014-01-23023 January 2014 Part 21 Report Regarding Nonconformance of an Electrical Tubular Water Heater ML14042A2002014-01-21021 January 2014 Part 21 Report Regarding Non-Conformance of an Electrical Tubular Water Heater ML13256A1392013-09-13013 September 2013 Notification of Potential Part 21 Report Re Watts Bar Nuclear Plant, Unit 1 - Dresser Masoneilan Valve Stem/Plug Assemblies Found Out-of-Tolerance ML13234A1162013-08-16016 August 2013 Notification of Potential Part 21 Report - Auxiliary Feedwater Level Control Value Stem/Plug Assembly Out of Tolerance ML13204A3812013-07-18018 July 2013 Construction Deficiency Report 50-391/2013-01 - Commercial Grade Dedication Program - Final Report IR 05000391/20130012013-07-18018 July 2013 Construction Deficiency Report 50-391/2013-01 - Commercial Grade Dedication Program - Final Report IR 05000391/20130022013-06-27027 June 2013 Construction Deficiency Report 50-391/2013-02 - Instrument Sense Line Slope Issue - Final Report ML13182A4602013-06-27027 June 2013 Construction Deficiency Report 50-391/2013-02 - Instrument Sense Line Slope Issue - Final Report ML13165A3422013-06-12012 June 2013 60-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers ML13161A3422013-06-0505 June 2013 ATC Nuclear, Interim Part 21 Report Involving Review of Seismic Testing Methodology ML13129A1762013-05-0606 May 2013 Construction Deficiency Report 50-391/2013-01 - Commercial Grade Dedication Program - Second Interim Report ML13091A3882013-03-28028 March 2013 Interim Part 21 Report Involving Review of Seismic Testing Methodology 2023-04-10
[Table view] Category:Letter
MONTHYEARML23319A2452024-01-29029 January 2024 Issuance of Amendment Nos. 366 and 360; 164 and 71 Regarding the Adoption of TSTF-567, Revision 1, Add Containment Sump TS to Address GSI-191 Issues ML24008A2462024-01-18018 January 2024 Revision to the Reactor Vessel Material Surveillance Capsule Withdrawal Schedule CNL-24-017, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions2024-01-17017 January 2024 Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions CNL-24-016, Supplement to Application to Modify the Technical Specification Surveillance Requirement 3.9.5.1 (WBN-TS-21-14)2024-01-10010 January 2024 Supplement to Application to Modify the Technical Specification Surveillance Requirement 3.9.5.1 (WBN-TS-21-14) CNL-23-052, Application to Adopt TSTF-427-A, Revision 2, Allowance for Non-Technical Specification Barrier Degradation on Supported System Operability2024-01-0909 January 2024 Application to Adopt TSTF-427-A, Revision 2, Allowance for Non-Technical Specification Barrier Degradation on Supported System Operability CNL-23-062, Application to Revise the Technical Specifications Section 3.8.2, AC Sources-Shutdown, to Remove Reference to the C-S Diesel Generator (WBN-TS-23-018)2024-01-0808 January 2024 Application to Revise the Technical Specifications Section 3.8.2, AC Sources-Shutdown, to Remove Reference to the C-S Diesel Generator (WBN-TS-23-018) ML23346A1382024-01-0303 January 2024 Regulatory Audit Summary Related to Request to Increase the Number of Tritium Producing Burnable Absorber Rods CNL-23-069, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-21021 December 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation IR 05000390/20234412023-12-21021 December 2023 Plantfinal Significance Determination for a Security-Related Greater than Green Finding, Nov, and Assessment Follow-up, 05000390-2023441 and 05000391-2023441-Public CNL-23-036, Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08)2023-12-18018 December 2023 Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08) IR 05000390/20234042023-12-14014 December 2023 Security Baseline Inspection Report 05000390/2023404 and 05000391/2023404 CNL-23-001, Rebaseline of Sections 3.1 and 3.2 of the Technical Specifications (WBN-TS-23-01)2023-12-13013 December 2023 Rebaseline of Sections 3.1 and 3.2 of the Technical Specifications (WBN-TS-23-01) ML23293A0572023-12-0606 December 2023 Issuance of Amendment Nos. 163 and 70 Regarding Adoption of TSTF-501-A, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control IR 05000390/20230102023-11-30030 November 2023 RE-Issue Watts Bar Nuclear Plant - Biennial Problem Identification and Resolution Inspection Report 050000390/2023010 and 05000391/2023010 and Apparent Violation CNL-23-067, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-11-27027 November 2023 Central Emergency Control Center Emergency Plan Implementing Procedure Revisions IR 05000390/20230032023-11-13013 November 2023 Integrated Inspection Report 05000390/2023003 and 05000391/2023003 and Apparent Violation ML23312A1432023-11-0808 November 2023 Submittal of Dual Unit Updated Final Safety Analysis Report (UFSAR) Amendment 5 CNL-23-059, Supplement to Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-2023-09-20020 September 2023 Supplement to Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03 CNL-23-061, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revision2023-09-20020 September 2023 Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revision ML23251A2002023-09-11011 September 2023 Request for Withholding Information from Public Disclosure for Watts Bar Nuclear Plant, Units 1 and 2 CNL-23-057, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions. Includes CECC-EPIP-1, Revision 76 and CECC-EPIP-9, Revision 642023-09-0505 September 2023 Central Emergency Control Center Emergency Plan Implementing Procedure Revisions. Includes CECC-EPIP-1, Revision 76 and CECC-EPIP-9, Revision 64 IR 05000390/20230052023-08-30030 August 2023 Updated Inspection Plan for Watts Bar Nuclear Plant, Units 1 and 2 - Report 05000390/2023005 and 05000391/2023005 ML23233A0042023-08-28028 August 2023 Proposed Alternative to the Requirements of the ASME Boiler and Pressure Vessel Code for Upper Head Injection Dissimilar Metal Butt Welds IR 05000390/20230022023-08-16016 August 2023 Reissue - Watts Bar Nuclear Plant - Integrated Inspection Report 05000390/2023002 and 05000391/2023002 ML23220A1582023-08-0909 August 2023 Integrated Inspection Report 05000390/2023002 and 05000391/2023002 CNL-23-045, License Amendment Request to Revise Technical Specification Table 1.1-1 Regarding the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Bolts (WBN-TS-23-010)2023-08-0707 August 2023 License Amendment Request to Revise Technical Specification Table 1.1-1 Regarding the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Bolts (WBN-TS-23-010) CNL-23-028, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03 and WBN-TS-23-06)2023-08-0202 August 2023 Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03 and WBN-TS-23-06) ML23192A4472023-07-31031 July 2023 Staff Assessment of Updated Seismic Hazards at TVA Sites Following the NRC Process for the Ongoing Assessment of Natural Hazards Information CNL-23-055, Tennessee Valley Authority - Emergency Preparedness Department Procedure Revision. Includes EPDP-3, Revision 3, Emergency Plan Exercises and Preparedness Drills2023-07-25025 July 2023 Tennessee Valley Authority - Emergency Preparedness Department Procedure Revision. Includes EPDP-3, Revision 3, Emergency Plan Exercises and Preparedness Drills IR 05000390/20230112023-07-24024 July 2023 Quadrennial Focused Engineering Inspection (FEI) Commercial Grade Dedication Report 05000390 2023011 and 05000391 2023011 CNL-23-053, Tennessee Valley Authority - Radiological Emergency Plan Revisions2023-07-18018 July 2023 Tennessee Valley Authority - Radiological Emergency Plan Revisions CNL-23-020, Application to Revise Technical Specifications to Adopt TSTF-501-A, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control (WBN-TS-22-06)2023-06-28028 June 2023 Application to Revise Technical Specifications to Adopt TSTF-501-A, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control (WBN-TS-22-06) CNL-23-049, Tennessee Valley Authority - Radiological Emergency Plan and Central Emergency Control Center Emergency Plan .2023-06-26026 June 2023 Tennessee Valley Authority - Radiological Emergency Plan and Central Emergency Control Center Emergency Plan . ML23122A2322023-06-0707 June 2023 Issuance of Amendment Nos. 162 and 69 Regarding Change to Date in Footnotes for Technical Specification 3.7.11, Control Room Emergency Air Temperature Control System (Creatcs) CNL-23-044, Transmittal of Revision 3 to WCAP-18774-P and WCAP-18774-NP, Addendum to the Rotterdam Dockyard Company Final Stress Report for 173 P.W.R. Vessels TVA III & IV (Report No. 30749-B-030, Rev. 3) - Evaluation of One Closure Stud Out2023-06-0101 June 2023 Transmittal of Revision 3 to WCAP-18774-P and WCAP-18774-NP, Addendum to the Rotterdam Dockyard Company Final Stress Report for 173 P.W.R. Vessels TVA III & IV (Report No. 30749-B-030, Rev. 3) - Evaluation of One Closure Stud Out IR 05000390/20234032023-05-30030 May 2023 Cyber Security Inspection Report 05000390/2023403 and 05000391/2023403 ML23131A1812023-05-23023 May 2023 Correction to Amendment No. 161 to Facility Operating License No. NPF-90 CNL-23-042, Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-05-16016 May 2023 Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions IR 05000390/20220032023-05-0909 May 2023 Reissue Watts Bar Nuclear Plant - Integrated Inspection Report 05000390/2022003 and 05000391/2022003 ML23125A2202023-05-0505 May 2023 Issuance of Amendment No. 161 Regarding a Change to Footnotes for Technical Specification Table 1.1-1 Modes (Emergency Circumstances) IR 05000390/20230012023-05-0404 May 2023 Integrated Inspection Report 05000390/2023001 and 05000391/2023001 CNL-23-043, Emergency License Amendment Request to Relax the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Studs in Technical Specification Table 1.1-1, Modes (WBN-TS-23-09)2023-05-0404 May 2023 Emergency License Amendment Request to Relax the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Studs in Technical Specification Table 1.1-1, Modes (WBN-TS-23-09) CNL-23-032, Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 412023-04-27027 April 2023 Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 41 CNL-23-030, Tennessee Valley Authority - Hydrologic Engineering Center River Analysis System Project Milestone Status Update2023-04-27027 April 2023 Tennessee Valley Authority - Hydrologic Engineering Center River Analysis System Project Milestone Status Update CNL-23-033, Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revision2023-04-24024 April 2023 Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revision CNL-23-029, Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-04-11011 April 2023 Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions ML23072A0652023-04-0505 April 2023 Units 1 and 2 Issuance of Amendment Nos. 364 and 358; 160 and 68 Regarding a Revision to Technical Specification 3.4.12 ML23073A2762023-04-0303 April 2023 Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing (EPID L-2023-LLA-0029) (Letter) CNL-23-023, Annual Insurance Status Report2023-03-30030 March 2023 Annual Insurance Status Report CNL-23-024, TVA Guarantee of Payment of Deferred Premiums - 2022 Annual Report2023-03-29029 March 2023 TVA Guarantee of Payment of Deferred Premiums - 2022 Annual Report 2024-01-09
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Text
Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 January 31, 2013 CDR-50-391/2013-01 10 CFR 50.55(e)
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 NRC Docket No. 50-391
Subject:
WATTS BAR NUCLEAR PLANT (WBN) UNIT 2 - CONSTRUCTION DEFICIENCY REPORT 50-391/2013 COMMERCIAL GRADE DEDICATION PROGRAM - INTERIM REPORT The purpose of this letter is to provide interim Construction Deficiency Report (CDR) 391/2013-01, regarding a condition identified within TVA's commercial grade dedication program. TVA has determined that a condition exists where certain commercially dedicated equipment and/or components have been stored or installed that may not be capable of performing their intended safety functions with reasonable assurance.
Evaluations to date have not identified any specific examples in which such commercially dedicated equipment and/or components would have been unable to perform their intended safety functions; however, further evaluations and, if needed, additional testing will be carried out in order to demonstrate their ability to do so. Until this process is completed, the potential exists for a substantial safety hazard determination being identified as a result of this condition.
Therefore, this condition is conservatively being reported in accordance with 10 CFR 50.55(e).
Initial notification was made on January 3, 2013, via Event Notification No. 48646.
Although the root cause determination has not been finalized, the preliminary cause of this condition is that TVA's commercial grade dedication program did not fully implement current regulatory requirements. Further details of this condition can be found in the interim CDR 391/2013-01 provided in Enclosure 1. TVA expects to complete further evaluations and any subsequent testing for the components affected by this condition by September 1, 2013.
TVA's system turnover process will prevent equipment and components affected by this condition from being turned over to plant operations prior to the condition identified being corrected.
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U.S. Nuclear Regulatory Commission Page 2 January 31, 2013 TVA plans to provide regular report updates (approximately 60-day intervals) as the tasks are completed. Once the final safety significance of this condition is determined, TVA will either provide a final CDR for this condition or withdraw this report. TVA expects to complete this activity by September 1, 2013.
TVA is also evaluating the timeliness associated with its evaluation of this condition.
This has been entered into TVA's corrective action program as Problem Evaluation Report 653083. provides the commitments made in this letter.
I declare under penalty of perjury that the foregoing is true and correct. Executed on the 3 1 st day of January, 2013.
If you have any questions, please contact me at (423) 365-1260 or Gordon Arent at (423) 365-2004.
Respectfully, Raymond A. Hruby, Jr.
General Manager, Technical Services Watts Bar Unit 2
Enclosures:
- 1. Construction Deficiency Report (CDR) 391/2013-01, Commercial Grade Dedication Program
- 2. List of Commitments cc (Enclosures):
U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, Tennessee 37381
ENCLOSUREI WATTS BAR NUCLEAR PLANT (WBN) UNIT 2 REGARDING COMMERCIAL GRADE DEDICATION PROGRAM 10 CFR 50.55(e) CONSTRUCTION DEFICIENCY REPORT (CDR) 50-391/2013-01 FIRST INTERIM REPORT DESCRIPTION OF DEFICIENCY TVA has determined that a condition exists where certain commercially dedicated equipment and/or components have been stored or installed that may not meet the regulatory commercial grade dedication (CGD) process.
Evaluations to date have not identified any specific examples in which such commercially dedicated equipment and/or components would have been unable to perform their intended safety functions; however, further evaluations and, if needed, additional testing will be carried out in order to demonstrate their ability to do so. Until this process is completed, the potential exists for a substantial safety hazard determination being identified as a result of this condition.
CAUSE OF THE DEFICIENCY Although the root cause determination has not been finalized for Problem Evaluation Report (PER) 403095, the preliminary cause of this condition is that TVA's CGD program did not fully implement current regulatory requirements.
PER 403095 was initiated by WBN Unit 2 Engineering following a routine construction NRC inspection to document NRC identified errors in implementing NEDP-8, "Technical Evaluation for Procurement of Materials and Services," with respect to the CGD process.
The PER identified twelve (12) packages with potential deficiencies that raised NRC concerns about the CGD process.
After further inspection, eight (8) packages were found to be acceptable, and no additional actions are needed for these packages. The remaining four (4) packages identified by the NRC were determined to require additional testing and inspection prior to use at WBN Unit 2. During a subsequent NRC inspection when additional issues were identified, TVA decided to conduct a comprehensive review of the packages potentially applicable to WBN Unit 2. A team of independent and experienced technical personnel was assembled to perform a review of the packages.
The reviews performed to date have not identified any components that would have been unable to perform their intended safety function if the condition was not corrected.
However, in some cases, the review concluded that additional testing was warranted to confirm the components will perform their intended function.
Regarding the programmatic aspect of this condition, TVA determined that NEDP-8, "Technical Evaluation for Procurement of Materials and Services," did not adequately reflect the definition of critical characteristics included in 10 CFR Part 21. The NEDP-8 definition described critical characteristics for acceptance as those selected to verify that E1-1
the item received was the item specified (EPRI NP-5652) instead of verifying that the item would perform its intended safety function (10 CFR Part 21). However, in many cases other procedural requirements in NEDP-8 ensured that the required critical characteristics for design were selected based on safety functions and failure modes.
SAFETY IMPLICATIONS No substantial safety hazard examples have been identified to date. However, until further evaluations and any subsequent additional testing described above has been completed, the potential exists for a substantial safety hazard determination being identified due to this condition. Once the final safety significance of this condition is determined, TVA will either provide a final CDR for this condition or process a withdrawal of this report.
CORRECTIVE ACTIONS To address the potential hardware deficiencies, the following actions have been completed or are planned.
- 1. TVA assembled an independent experienced team of technical personnel and performed a comprehensive review of CGD packages potentially used by the WBN Unit 2 project. The team reviewed each package against industry practices and regulatory requirements and proposed a disposition for each package. The results of this review were documented in "Commercial Grade Dedication Program, Corrective Action Program, Closure Report".
- 2. To prevent inadvertent procurement of any CDG item prior to required update of procurement packages, all CGD items reviewed under this PER were placed on Hold. The Procurement Engineering Group (PEG) is revising CGD packages that need technical revision. Revision of the procurement package for technical reasons may result in additional testing/inspection of the item, or in the worst case, replacement of the item with a basic component.
- 3. Concurrent with the revision of each CGD package, personnel will determine if the related commercial grade item which was purchased, received and stored, or installed is impacted, and appropriate action will be taken by the WBN Unit 2 project.
- 4. Upon completion of this process, a determination as to safety significance will be completed. A final report will then be provided detailing the safety significance of this condition or this report will be withdrawn at that time.
To address the programmatic aspects of this condition, the following actions have been completed or are planned.
- 1. TVA has created and staffed a Corporate Program Manager, PEG position which reports directly to the General Manager of Engineering Design. TVA has revised NEDP-20, "Conduct of the Engineering Organization," to include roles and responsibilities for this position.
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- 2. TVA has revised NEDP-8 to correct the deficient definition of critical characteristics and provide additional guidance on performing commercial grade dedications.
- 3. WBN Unit 2 Project PEG personnel have completed EPRI training on CGD programs or have been task qualified to perform CGD by TVA's Engineering Support Personnel Training Program.
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ENCLOSURE 2 LIST OF COMMITMENTS
- 1. The Procurement Engineering Group (PEG) is revising CGD packages that need technical revision. Revision of the procurement package for technical reasons may result in additional testing/inspection of the item, or in the worst case, replacement of the item with a basic component.
- 2. Concurrent with the revision of each CGD package, personnel will determine if the related commercial grade item which was purchased, received and stored, or installed is impacted, and appropriate action will be taken by the WBN Unit 2 project.
- 3. Upon completion of this process, a determination as to safety significance will be completed. A final report will then be provided detailing the safety significance of this condition or this report will be withdrawn at that time.
TVA expects to complete these activities by September 1, 2013.
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