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Category:CORRESPONDENCE-LETTERS
MONTHYEARML20217M4461999-10-20020 October 1999 Forwards Rev 8 to Sequoyah Nuclear Plant Physical Security/ Contingency Plan, IAW 10CFR50.54(p).Encl Withheld,Per 10CFR73.21 ML20217J4151999-10-15015 October 1999 Forwards Request for Addl Info Re Util 990624 Application for Amend of TSs That Would Revise TS for Weighing of Ice Condenser Ice Baskets 05000327/LER-1999-002, Forwards LER 99-002-00 Re Start of Units 1 & 2 EDGs as Result of Cable Being Damaged During Installation of Thermo- Lag for Kaowool Upgrade Project1999-10-15015 October 1999 Forwards LER 99-002-00 Re Start of Units 1 & 2 EDGs as Result of Cable Being Damaged During Installation of Thermo- Lag for Kaowool Upgrade Project ML20217G1141999-10-0707 October 1999 Responds to from P Salas,Providing Response to NRC Risk Determination Associated with 990630 Flooding Event at Sequoyah Facility.Meeting to Discuss Risk Determination Issues Scheduled for 991021 in Atlanta,Ga ML20217B2981999-10-0606 October 1999 Discusses Closeout of GL 92-01,rev 1,suppl 1, Reactor Vessel Integrity, for Sequoyah Nuclear Plant,Units 1 & 2. NRC Also Hereby Solicits Any Written Comments That TVA May Have on Current Rvid Data by 991101 ML20217B8431999-10-0505 October 1999 Requests NRC Review & Approval of ASME Code Relief Requests That Were Identified in Plant Second 10-yr ISI Interval for Both Units.Encl 3 Provides Util Procedure for Calculation of ASME Code Coverage for Section XI Nondestructive Exams IR 05000327/19990041999-10-0101 October 1999 Ack Receipt of Providing Comments on Insp Repts 50-327/99-04 & 50-328/99-04.NRC Considered Comments for Apparent Violation Involving 10CFR50.59 Issue ML20217C7101999-10-0101 October 1999 Forwards Response to NRC 990910 RAI Re Sequoyah Nuclear Plant,Units 1 & 2 URI 50-327/98-04-02 & 50-328/98-04-02 Re Ice Weight Representative Sample ML20212J5981999-10-0101 October 1999 Forwards SE Accepting Request for Relief from ASME Boiler & Pressure Vessel Code,Section Xi,Requirements for Certain Inservice Insp at Plnat,Unit 1 ML20212M1081999-09-29029 September 1999 Confirms Intent to Meet with Utils on 991025 in Atlanta,Ga to Discuss Pilot Plants,Shearon Harris & Sequoyah Any Observations & Lessons Learned & Recommendations Re Implementation of Pilot Program ML20217A9451999-09-27027 September 1999 Forwards Insp Repts 50-327/99-05 & 50-328/99-05 on 990718- 0828.One Violation Identified & Being Treated as Non-Cited Violation ML20216J9351999-09-27027 September 1999 Responds to NRC Re Violations Noted in Insp Repts 50-327/99-04 & 50-328/99-04.Corrective Actions:Risk Determination Evaluation Was Performed & Licensee Concluded That Event Is in Green Regulatory Response Band ML20212F0751999-09-23023 September 1999 Forwards SER Granting Util 981021 Request for Relief from ASME Code,Section XI Requirements from Certain Inservice Insp at Sequoyah Nuclear Power Plant,Units 1 & 2 Pursuant to 10CFR50.55a(a)(3)(ii) ML20212F4501999-09-23023 September 1999 Forwards Amends 246 & 237 to Licenses DPR-77 & DPR-79, Respectively & Ser.Amends Approve Request to Revise TSs to Allow Use of Fully Qualified & Tested Spare Inverter in Place of Any of Eight Required Inverters ML20212M1911999-09-21021 September 1999 Discusses Exercise of Enforcement Discretion Re Apparent Violation Noted in Insp Repts 50-327/99-04 & 50-328/99-04 Associated with Implementation of Procedural Changes Which Resulted in Three Containment Penetrations Being Left Open ML20211Q0311999-09-10010 September 1999 Requests Written Documentation from TVA to Provide Technical Assistance to Region II Re TS Compliance & Ice Condenser Maint Practices at Plant ML20216F5441999-09-0707 September 1999 Provides Results of Risk Evaluation of 990630,flooding Event at Sequoyah 1 & 2 Reactor Facilities.Event Was Documented in Insp Rept 50-327/99-04 & 50-328/99-04 & Transmitted in Ltr, ML20211N5681999-09-0101 September 1999 Submits Clarification of Two Issues Raised in Insp Repts 50-327/99-04 & 50-328/99-04,dtd 990813,which Was First Insp Rept Issued for Plant Under NRC Power Reactor Oversight Process Pilot Plant Study ML20211G5881999-08-27027 August 1999 Submits Summary of 990820 Management Meeting Re Plant Performance.List of Attendees & Matl Used in Presentation Enclosed ML20211F8891999-08-25025 August 1999 Forwards Sequoyah Nuclear Plant Unit 1 Cycle 9 Refueling Outage, Re Completed SG Activities,Per TSs 4.4.5.5.b & 4.4.5.5.c ML20211A1851999-08-16016 August 1999 Forwards Proprietary TR WCAP-15128 & non-proprietary Rept WCAP-15129 for NRC Review.Repts Are Provided in Advance of TS Change That Is Being Prepared to Support Cycle 10 Rfo. Proprietary TR Withheld,Per 10CFR2.790 ML20210V1471999-08-13013 August 1999 Forwards Insp Repts 50-327/99-04 & 50-328/99-04 on 990601- 0717.One Potentially Safety Significant Issue Identified.On 990630,inadequate Performance of Storm Drain Sys Caused Water from Heavy Rainfall to Backup & Flood Turbine Bldg ML20211A1921999-08-12012 August 1999 Requests Proprietary TR WCAP-15128, Depth-Based SG Tube Repair Criteria for Axial PWSCC at Dented TSP Intersections, Be Withheld from Public Disclosure Per 10CFR2.790 ML20210Q5011999-08-0505 August 1999 Informs That NRC Plans to Administer Gfes of Written Operator Licensing Exam on 991006 at Sequoyah Nuclear Plant. Sample Registration Ltr Encl ML20210L4291999-08-0202 August 1999 Forwards Sequoyah Nuclear Plant Unit 2 Cycle 9 12-Month SG Insp Rept & SG-99-07-009, Sequoyah Unit-2 Cycle 10 Voltage-Based Repair Criteria 90-Day Rept. Repts Submitted IAW TS 4.4.5.5.b & TS 4.4.5.5.c ML20210L1611999-07-30030 July 1999 Forwards Request for Relief RV-4 Re ASME Class 1,2 & 3 Prvs, Per First ten-year Inservice Test Time Interval.Review & Approval of RV-4 Is Requested to Support Unit 1 Cycle 10 Refueling Outage,Scheduled to Start 000213 ML20210G5301999-07-28028 July 1999 Forwards Sequoyah Nuclear Plant Unit 2 ISI Summary Rept That Contains Historical Record of Repairs,Replacement & ISI & Augmented Examinations That Were Performed on ASME Code Class 1 & 2 Components from 971104-990511 ML20211B9661999-07-26026 July 1999 Informs That Sequoyah Nuclear Plant Sewage Treatment Plant, NPDES 0026450 Outfall 112,is in Standby Status.Flow Has Been Diverted from Sys Since Jan 1998 ML20210B2521999-07-14014 July 1999 Confirms 990712 Telcon Between J Smith of Licensee Staff & M Shannon of NRC Re semi-annual Mgt Meeting Schedule for 990820 in Atlanta,Ga to Discuss Recent Sequoyah Nuclear Plant Performance ML20210J1091999-07-10010 July 1999 Submits Suggestions & Concerns Re Y2K & Nuclear Power Plants ML20196K0381999-06-30030 June 1999 Provides Written Confirmation of Completed Commitment for Final Implementation of Thermo-Lag 330-1 Fire Barrier Corrective Actions at Snp,Per GL 92-08 ML20209E4071999-06-30030 June 1999 Forwards Insp Repts 50-327/99-03 & 50-328/99-03 on 990328- 0531.Violations Being Treated as Noncited Violations ML20196J8261999-06-28028 June 1999 Forwards Safety Evaluation Authorizing Request for Relief from ASME Boiler & Pressure Vessel Code,Section XI Requirements for Certain Inservice Inspections at Sequoyah Nuclear Plant,Units 1 & 2 ML20196G7881999-06-22022 June 1999 Informs NRC of Changes That Util Incorporated Into TS Bases Sections & Trm.Encl Provides Revised TS Bases Pages & TRM Affected by Listed Revs ML20196G1801999-06-21021 June 1999 Requests Termination of SRO License SOP-20751-1,for Lf Hardin,Effective 990611.Subject Individual Resigned from Position at TVA ML20195G1821999-06-0808 June 1999 Requests NRC Review & Approval of ASME Code Relief for ISI Program.Encl 1 Provides Relief Request 1-ISI-14 That Includes Two Attachments.Encl 2 Provides Copy of Related ASME Code Page ML20195E9521999-06-0707 June 1999 Requests Relief from Specific Requirements of ASME Section Xi,Subsection IWE of 1992 Edition,1992 Addenda.Util Has Determined That Proposed Alternatives Would Provide Acceptable Level of Quality & Safety ML20195E9311999-05-28028 May 1999 Informs of Planned Insp Activities for Licensee to Have Opportunity to Prepare for Insps & Provide NRC with Feedback on Any Planned Insps Which May Conflict with Plant Activities ML20195B3631999-05-21021 May 1999 Requests Termination of SRO License for Tj Van Huis,Per 10CFR50.74(a).TJ Van Huis Retired from Util,Effective 990514 ML20207A5721999-05-20020 May 1999 Forwards Correction to Previously Issued Amend 163 to License DPR-79 Re SR 4.1.1.1.1.d Inadvertently Omitted from Pp 3/4 1-1 of Unit 2 TS ML20206Q8791999-05-13013 May 1999 Forwards L36 9990415 802, COLR for Sequoyah Nuclear Plant Unit 2,Cycle 10, IAW Plant TS 6.9.1.14.c 05000327/LER-1999-001, Forwards LER 99-001-00 Re Condition That Resulted in Granting of Enforcement Discretion,Per Failure of Centrifugal Charging Pump.Condition Being Reported IAW 10CFR50.73(a)(2)(i)(B) & (a)(2)(iv)1999-05-11011 May 1999 Forwards LER 99-001-00 Re Condition That Resulted in Granting of Enforcement Discretion,Per Failure of Centrifugal Charging Pump.Condition Being Reported IAW 10CFR50.73(a)(2)(i)(B) & (a)(2)(iv) ML20206M9341999-05-10010 May 1999 Forwards Rept of SG Tube Plugging During Unit 2 Cycle 9 Refueling Outage,As Required by TS 4.4.5.5.a.ISI of Unit 2 SG Tubes Was Completed on 990503 ML20206K6271999-05-0606 May 1999 Requests Termination of SRO License for MR Taggart,License SOP-21336 Due to Resignation on 990430 ML20206J2061999-05-0404 May 1999 Requests Relief from Specified ISI Requirements in Section XI of ASME B&PV Code.Tva Requests Approval to Use Wire Type Penetrameters in Lieu of Plaque Type Penetrameters for Performing Radiographic Insps.Specific Relief Request,Encl ML20209J0391999-04-27027 April 1999 Forwards Annual Radioactive Effluent Release Rept, Radiological Impact Assessment Rept & Rev 41 to ODCM, for Period of Jan-Dec 1998 ML20206C6541999-04-23023 April 1999 Forwards Response to NRC 990127 RAI Re GL 96-05 for Sequoyah Nuclear Plant,Units 1 & 2 ML20206C0841999-04-23023 April 1999 Forwards Insp Repts 50-327/99-02 & 50-328/99-02 on 990214-0327.No Violations Noted ML20206B9591999-04-20020 April 1999 Responds to 990417 Request That NRC Exercise Discretion Not to Enforce Compliance with Actions Required in Unit 1 TS 3.1.2.2,3.1.2.4 & 3.5.2 & Documents 990417 Telephone Conversation When NRC Orally Issued NOED ML20205S5891999-04-17017 April 1999 Documents Request for Discretionary Enforcement for Unit 1 TS LCOs 3.1.2.2,3.1.2.4 & 3.5.2 to Support Completion of Repairs & Testing for 1B-B Centrifugal Charging Pump (CCP) 1999-09-07
[Table view] Category:NRC TO UTILITY
MONTHYEARML20062G7711990-11-20020 November 1990 Forwards Computer Printout of Generic & Plant Specific Info Contained in NRC Sims for Facility.Requests That Sims Printout Be Updated W/Actual or Projected Completion Dates for MPA Items within 90 Days of Receipt of Ltr ML20062F5491990-11-16016 November 1990 Forwards Insp Repts 50-327/90-34 & 50-328/90-34 on 901006- 1105 & Notice of Violation ML20217A5461990-11-14014 November 1990 Ack Receipt of 901026 Response to Violations Noted in Insp Repts 50-327/90-28 & 50-328/90-28.Implementation of Corrective Actions Will Be Examined During Future Insp IR 05000327/19900221990-11-13013 November 1990 Ack Receipt of Addl Response to Violations Noted in Insp Repts 50-327/90-22 & 50-328/90-22.Corrective Actions Will Be Examined During Future Insps ML20217A6051990-11-0909 November 1990 Forwards Augmented Insp Team Repts 50-327/90-36 & 50-328/90-36 on 901011-19.NRC Concludes That Multiple Failures of Main Steam Check Valves on 901008 Resulted from Inadequate Recognition & Correction of Deficiencies ML20062F1831990-11-0808 November 1990 Advises That 901015 Rev 25 to Physical Security Plan Consistent W/Provisions of 10CFR50.54(p) & Acceptable ML20058E1111990-11-0202 November 1990 Grants 901023 Request for Extension of 60-day Reporting Requirement for Cycle 5 Radial Peaking Factor Limit Rept ML20058F1141990-11-0101 November 1990 Forwards Insp Repts 50-327/90-32 & 50-328/90-32 on 900906- 1005 & Notice of Violation IR 05000327/19900181990-10-31031 October 1990 Ack Receipt of Addressing Open Unresolved Items in Insp Repts 50-327/90-18 & 50-328/90-18 ML20058A8441990-10-11011 October 1990 Forwards Insp Repts 50-327/90-29 & 50-328/90-29 on 900827-31 & Notice of Violation ML20062A0611990-10-0909 October 1990 Expresses Appreciation to Util for Prompt and Extensive Support Extended to NRC Following Fire at Inspector Home ML20059N5811990-10-0202 October 1990 Forwards Insp Repts 50-327/90-31 & 50-328/90-31 on 900910-14.No Violations or Deviations Noted ML20059N0711990-10-0202 October 1990 Requests Util to Provide within 45 Days of Receipt of Ltr Listing of All Commitments Made to Justify Restart of Plant IR 05000327/19900231990-09-19019 September 1990 Confirms 900924 Mgt Meeting in Atlanta,Ga to Discuss ALARA Program & Weaknesses Noted in Insp Repts 50-327/90-23 & 50-328/90-23 ML20059F9071990-09-10010 September 1990 Ack Receipt of & Payment of Civil Penalty in Amount of $75,000,per NRC ML20059H3741990-08-31031 August 1990 Forwards Insp Repts 50-327/90-26 & 50-328/90-26 on 900706-0805.Noncited Violations Noted ML20059H0311990-08-30030 August 1990 Forwards Insp Repts 50-327/90-23 & 50-328/90-23 on 900625-29 & 0730.Weaknesses Noted.Util Encouraged to Provide Increased Mgt Attention to Radiological Controls to Assure That Significant Decline in ALARA Program Does Not Occur ML20059H3531990-08-29029 August 1990 Forwards Insp Repts 50-327/90-27 & 50-328/90-27 on 900730-0803.No Violations or Deviations Noted ML20056B4991990-08-21021 August 1990 Forwards Evaluation of Westinghouse Owners Group Bounding Analysis,Per Util Response to Bulletin 88-011, Pressurizer Surge Line Thermal Stratification ML20058P8111990-08-0303 August 1990 Forwards Insp Repts 50-327/90-21 & 50-328/90-21 on 900709-13.No Violations or Deviations Noted ML20056A4751990-07-26026 July 1990 Forwards Insp Repts 50-327/90-22 & 50-328/90-22 on 900606- 0705 & Notice of Violation.Nrc Decided Not to Hold Enforcement Conference or Propose Civil Penalty Because Significant Changes in Plant Mgt Occurred ML20055H9261990-07-25025 July 1990 Advises That 900119 Response to NRC Bulletin 89-003, Potential Loss of Required Shutdown Margin During Refueling Operations, Acceptable ML20055H8851990-07-25025 July 1990 Considers 900425 Request for Approval to Eliminate Site Local Recovery Ctrs Withdrawn.Review Terminated IR 05000327/19900091990-07-20020 July 1990 Discusses SALP Repts 50-327/90-09 & 50-328/90-09 & Forwards Summary of 900530 SALP Meeting.Improvements Noted.Encourages Pursuance & Monitoring of Effectiveness of Corrective Actions ML20055G5651990-07-20020 July 1990 Forwards Order Imposing Civil Penalty in Amount of $75,000, Per 900412 Notice of Violation.Violation Regards RHR Pump Deadheading.Requests Listed Info within 30 Days of Ltr Date ML20055F9181990-07-19019 July 1990 Discusses Corrective Actions for Feedwater Control Problems During Unit 2,Cycle 3 Restart.Nrc Concludes That Feedwater Control Study Addresses Problems of feedwater-related Trips That Occurred in 1988 & 1989 ML20055G3381990-07-18018 July 1990 Advises of Closure of Review of Generic Ltr 83-28,Item 2.2.2 Re Vendor Interface for safety-related Components ML20055F7971990-07-16016 July 1990 Advises That 900126 Response to Generic Ltr 89-13 Re Svc Water Sys Problems Affecting safety-related Equipment, Acceptable.Documentation Re Implementation of Generic Ltr & Results of Programs Should Be Retained in Plant Records ML20055D8231990-07-0303 July 1990 Advises That Util 890223,0512 & 900204 Responses to Generic Ltr 88-14 Re Instrument Air Sys Acceptable ML20055D2611990-06-29029 June 1990 Requests Addl Info Re Alternative Testing of Reactor Vessel Head & Internals Lifting Rigs ML20055H3901990-06-29029 June 1990 Forwards Insp Repts 50-327/90-20 & 50-328/90-20 on 900506-0606.No Violations or Deviations Noted IR 05000327/19900141990-06-25025 June 1990 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-327/90-14 & 50-328/90-14 ML20059M8551990-06-13013 June 1990 Forwards NRC Performance Indicators for First Quarter 1990. W/O Encl ML20248E2291989-09-28028 September 1989 Requests Addl Info Re Implementation of Suppl 3 of NRC Bulletin 88-008, Thermal Stresses in Piping Connected to RCS, within 30 Days of Ltr Receipt IR 05000327/19890111989-09-26026 September 1989 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-327/89-11 & 50-328/89-11 ML20248C1121989-09-22022 September 1989 Forwards Notice of Violation & Proposed Imposition of Civil Penalty in Amount of $87,500 from Insp on 890506-0605 ML20248C7361989-09-21021 September 1989 Discusses Reactor Operator & Senior Reactor Operator Licensing Exams Scheduled for Wk of 891211.Encl Ref Matl Requested by 891011 in Order to Meet Schedule ML20247K3121989-09-14014 September 1989 Forwards Safety Evaluation Accepting ATWS Mitigation Sys for Plant.Atws Requirements Under Review to Determine to What Extent Tech Specs Appropriate ML20247N8421989-09-14014 September 1989 Forwards Amend 9 to Indemnity Agreement B-82,reflecting Rev to 10CFR140,increasing Primary Layer of Nuclear Energy Liability Insurance ML20247E6811989-09-0707 September 1989 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-327/89-17 & 50-328/89-17 ML20247A9981989-08-31031 August 1989 Forwards Insp Repts 50-327/89-14 & 50-328/89-14 on 890424-28 & Notice of Violation.Insp Determined That Plant Personnel Failed to Follow Established Procedures for Assuring Proper Voltage on Shutdown Boards ML20246L0061989-08-29029 August 1989 Advises That Util 890612 Response to NRC Bulletin 89-001, Failure of Westinghouse Steam Generator Tube Mechanical Plugs, Acceptable ML20246P6741989-08-29029 August 1989 Forwards Insp Repts 50-327/89-20 & 50-328/89-20 on 890717-20.No Violations or Deviations Noted ML20246M5791989-08-25025 August 1989 Forwards Insp Repts 50-327/89-19 & 50-328/89-19 on 890706-0805 & Notice of Violation ML20245K2111989-08-17017 August 1989 Confirms 890809 Withdrawal of Application for Permission to Dispose of Low Activity Radwaste in Sanitary Landfill,Per 10CFR20.302 ML20245K4311989-08-10010 August 1989 Forwards Insp Repts 50-327/89-18 & 50-328/89-18 on 890606-0705 & Notice of Violation ML20245K8741989-08-10010 August 1989 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts 50-327/89-15 & 50-328/89-15 ML20245L3001989-08-0808 August 1989 Forwards Insp Repts 50-327/89-11 & 50-328/89-11 on 890626-30 & Notice of Violation 1990-09-19
[Table view] Category:OUTGOING CORRESPONDENCE
MONTHYEARML20217J4151999-10-15015 October 1999 Forwards Request for Addl Info Re Util 990624 Application for Amend of TSs That Would Revise TS for Weighing of Ice Condenser Ice Baskets ML20217G1141999-10-0707 October 1999 Responds to from P Salas,Providing Response to NRC Risk Determination Associated with 990630 Flooding Event at Sequoyah Facility.Meeting to Discuss Risk Determination Issues Scheduled for 991021 in Atlanta,Ga ML20217B2981999-10-0606 October 1999 Discusses Closeout of GL 92-01,rev 1,suppl 1, Reactor Vessel Integrity, for Sequoyah Nuclear Plant,Units 1 & 2. NRC Also Hereby Solicits Any Written Comments That TVA May Have on Current Rvid Data by 991101 IR 05000327/19990041999-10-0101 October 1999 Ack Receipt of Providing Comments on Insp Repts 50-327/99-04 & 50-328/99-04.NRC Considered Comments for Apparent Violation Involving 10CFR50.59 Issue ML20212J5981999-10-0101 October 1999 Forwards SE Accepting Request for Relief from ASME Boiler & Pressure Vessel Code,Section Xi,Requirements for Certain Inservice Insp at Plnat,Unit 1 ML20212M1081999-09-29029 September 1999 Confirms Intent to Meet with Utils on 991025 in Atlanta,Ga to Discuss Pilot Plants,Shearon Harris & Sequoyah Any Observations & Lessons Learned & Recommendations Re Implementation of Pilot Program ML20217A9451999-09-27027 September 1999 Forwards Insp Repts 50-327/99-05 & 50-328/99-05 on 990718- 0828.One Violation Identified & Being Treated as Non-Cited Violation ML20212F4501999-09-23023 September 1999 Forwards Amends 246 & 237 to Licenses DPR-77 & DPR-79, Respectively & Ser.Amends Approve Request to Revise TSs to Allow Use of Fully Qualified & Tested Spare Inverter in Place of Any of Eight Required Inverters ML20212F0751999-09-23023 September 1999 Forwards SER Granting Util 981021 Request for Relief from ASME Code,Section XI Requirements from Certain Inservice Insp at Sequoyah Nuclear Power Plant,Units 1 & 2 Pursuant to 10CFR50.55a(a)(3)(ii) ML20212M1911999-09-21021 September 1999 Discusses Exercise of Enforcement Discretion Re Apparent Violation Noted in Insp Repts 50-327/99-04 & 50-328/99-04 Associated with Implementation of Procedural Changes Which Resulted in Three Containment Penetrations Being Left Open ML20211Q0311999-09-10010 September 1999 Requests Written Documentation from TVA to Provide Technical Assistance to Region II Re TS Compliance & Ice Condenser Maint Practices at Plant ML20216F5441999-09-0707 September 1999 Provides Results of Risk Evaluation of 990630,flooding Event at Sequoyah 1 & 2 Reactor Facilities.Event Was Documented in Insp Rept 50-327/99-04 & 50-328/99-04 & Transmitted in Ltr, ML20211G5881999-08-27027 August 1999 Submits Summary of 990820 Management Meeting Re Plant Performance.List of Attendees & Matl Used in Presentation Enclosed ML20210V1471999-08-13013 August 1999 Forwards Insp Repts 50-327/99-04 & 50-328/99-04 on 990601- 0717.One Potentially Safety Significant Issue Identified.On 990630,inadequate Performance of Storm Drain Sys Caused Water from Heavy Rainfall to Backup & Flood Turbine Bldg ML20210Q5011999-08-0505 August 1999 Informs That NRC Plans to Administer Gfes of Written Operator Licensing Exam on 991006 at Sequoyah Nuclear Plant. Sample Registration Ltr Encl ML20210B2521999-07-14014 July 1999 Confirms 990712 Telcon Between J Smith of Licensee Staff & M Shannon of NRC Re semi-annual Mgt Meeting Schedule for 990820 in Atlanta,Ga to Discuss Recent Sequoyah Nuclear Plant Performance ML20209E4071999-06-30030 June 1999 Forwards Insp Repts 50-327/99-03 & 50-328/99-03 on 990328- 0531.Violations Being Treated as Noncited Violations ML20196J8261999-06-28028 June 1999 Forwards Safety Evaluation Authorizing Request for Relief from ASME Boiler & Pressure Vessel Code,Section XI Requirements for Certain Inservice Inspections at Sequoyah Nuclear Plant,Units 1 & 2 ML20195E9311999-05-28028 May 1999 Informs of Planned Insp Activities for Licensee to Have Opportunity to Prepare for Insps & Provide NRC with Feedback on Any Planned Insps Which May Conflict with Plant Activities ML20207A5721999-05-20020 May 1999 Forwards Correction to Previously Issued Amend 163 to License DPR-79 Re SR 4.1.1.1.1.d Inadvertently Omitted from Pp 3/4 1-1 of Unit 2 TS ML20206C0841999-04-23023 April 1999 Forwards Insp Repts 50-327/99-02 & 50-328/99-02 on 990214-0327.No Violations Noted ML20206B9591999-04-20020 April 1999 Responds to 990417 Request That NRC Exercise Discretion Not to Enforce Compliance with Actions Required in Unit 1 TS 3.1.2.2,3.1.2.4 & 3.5.2 & Documents 990417 Telephone Conversation When NRC Orally Issued NOED ML20205M0431999-04-13013 April 1999 Eighth Partial Response to FOIA Request for Records.App Q & R Records Encl & Being Made Available in PDR ML20205T1751999-04-0909 April 1999 Informs That on 990408 R Driscoll & Ho Christensen Confirmed Initial Operator Licensing Exam Scheduled for Y2K.Initial Exam Dates Scheduled for Wk of 000807 for Approx Seven Candidates ML20205B9601999-03-24024 March 1999 Seventh Partial Response to FOIA Request for Documents. Records in App N Already Available in Pdr.App O Records Being Released in Entirety & App P Records Being Withheld in Part (Ref FOIA Exemptions 7C,2 & 5) ML20204J5451999-03-19019 March 1999 Advises of NRC Planned Insp Effort Resulting from Sequoyah Plant Performance Review on Feb 1998-Jan 1999.Historical Listing of Plant Issues & Details of NRC Insp Plan for Next 8 Months Encl ML20204J5721999-03-15015 March 1999 Forwards Insp Repts 50-327/99-01 & 50-328/99-01 on 990103-0213.Violations Noted & Being Treated as non-cited Violations.Weakness Identified in Licensed Operator Training Program & Freeze Protection Program ML20207J0901999-03-0303 March 1999 Forwards FEMA Final Rept for 981104-05,full Participation, Ingestion Pathway Exercise of Offsite Radiological Emergency Response Plans for Sequoyah Npp.Three Areas Requiring Corrective Action Identified ML20203H7211999-02-18018 February 1999 Forwards Safety Evaluation Accepting Topical Rept BAW-2328, Blended Uranium Lead Test Assembly Design Rept, for Allowing Insertion of Lead Test Assemblies in Plant,Unit 2 Cycle 10 Core.Rept Acceptable with Listed Conditions ML20203B9001999-02-0808 February 1999 First Partial Response to FOIA Request for Documents. Forwards Documents Listed in App a Already Available in PDR, Documents in App B Released in Entirety & Documents in App C Being Withheld in Part (Ref Exemption 6) ML20203G5631999-02-0505 February 1999 Informs That NRC Plans to Administer Generic Fundamentals Exam Section of Written Operator Licensing Exam on 990407. Representative of Facility Must Submit Either Ltr Indicating No Candidates or Listing of Candidates for Exam ML20202J1211999-02-0202 February 1999 Submits Summary of 990128 Meeting with Listed Attendees at Region II Ofc for Presentation of Recent Plant Performance. Presentation Handout Encl ML20202J5421999-02-0101 February 1999 Forwards Insp Repts 50-327/98-11 & 50-328/98-11 on 981122-990102 & Nov.Violations Noted Re Failure to Comply with EOPs Following Rt & Failure to Enter TS 3.0.3 When Limiting Condition for RCS Flow Instrumentation TS Not Met ML20202C1771999-01-27027 January 1999 Forwards Request for Addl Info Re Util 980428 Response to GL 96-05, Periodic Verification of Design-Basis Capability of Safety-Related Motor-Operated Valves. Licensee Agreed to Provide Response to Request by 990426 ML20199E7081998-12-23023 December 1998 Refers to 991105 Training Managers Conference Conducted at RB Russel Bldg.Agenda Used for Training Conference & List of Attendees Encl.Goal of Providing Open Forum for Discussion of Operator Licensing Issues Was Met IR 05000327/19980151998-12-17017 December 1998 Forwards Safeguards Insp Repts 50-327/98-15 & 50-328/98-15 on 981116-20.No Violations or Deviations Noted.Repts Withheld Per 10CFR73.21 ML20198A8101998-12-0707 December 1998 Forwards Insp Repts 50-327/98-10 & 50-328/98-10 on 981011- 1121.No Violations Noted ML20206N4171998-12-0404 December 1998 Forwards Insp Repts 50-327/98-14 & 50-328/98-14 on 981102-06.No Violations Noted.Insp Team Observed Selected Portions of Emergency Organization Response in Key Facilities During EP Plume Exposure Exercise on 981104 ML20198A8531998-12-0404 December 1998 Expresses Appreciation for Support That TVA Provided NRC During Recent Plant Emergency Exercise.All Foreign Vistors Expressed Appreciation for Very Informative & Interesting Visit to TVA ML20196D6001998-11-24024 November 1998 Forwards Insp Repts 50-327/98-13 & 50-328/98-13 on 980914- 1016 & Notice of Violation Re Lack of Attention to Detail Installing Unit 2 Intermediate Deck Doors ML20196C5191998-11-17017 November 1998 Confirms 981110 Telephone Conversation Between P Salas & H Christensen Re Mgt Meeting Which Has Been Scehduled for 990128.The Purpose of Meeting Will Be to Discuss Recent Plant Performance for Sequoyah ML20196D0831998-11-16016 November 1998 Advises of Planned Insp Effort Resulting from Insp Planning Meeting Held on 981102.Details of Insp Plan Through March 1999 & Historical Listing of Plant Issues,Called Plant Issues Matrix,Encl ML20196D5981998-11-13013 November 1998 Informs That on 981007,NRC Administered Gfes of Written Operator Licensing Examination.Copy of Answer Key & Master Bwr/Pwr GFE Encl,Even Though Facility Did Not Participate in Exam.Without Encl ML20196D4121998-11-13013 November 1998 Discusses 981110 Request Re Noed.Based on NRC Evaluation, Staff Concluded That NOED Warranted.Nrc Intends to Exercise Discretion Not to Enforce Compliance with TS 3.8.2.1,action B,For Period from 981110-12,at Stated Times ML20195G5331998-11-0909 November 1998 Forwards Insp Repts 50-327/98-09 & 50-328/98-09 on 980830-1010 & NOV Re Failure to Perform Adequate Testing to Ensure That Low Voltage Circuit Breakers Would Perform Satisfactorily in Svc ML20207M6951998-10-30030 October 1998 Informs That on 980928-1001 NRC Administered Operating Exam to Employees Applying for Licenses to Operate at Plant ML20155A5131998-10-22022 October 1998 Discusses Review of Response to GL 97-05 for Plant,Units 1 & 2.Review Did Not Identify Any Concerns with SG Tube Insp Techniques ML20155B7481998-10-0909 October 1998 Extends Invitation to Attend Training Manager Conference on 981105 in Atlanta,Ga.Conference Designed to Inform Regional Training & Operations Mgt of Issues & Policies That Affect Licensing of Reactor Plant Operators ML20154D3081998-09-18018 September 1998 Forwards Insp Repts 50-327/98-08 & 50-328/98-08 on 980719- 0829.No Violations Noted.Effective Radiological Emergency Plan Drill Was Conducted ML20239A0601998-08-27027 August 1998 Forwards SER Re Licensee 960213,0315 & 0806 Responses to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves. Staff Finds Licensee Adequately Addressed Actions Requested in GL 95-07 1999-09-07
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y November.05, 1985
---jennesseeValleyAuthority
' ATTN: Mr. H. G. Parris Manager of Power and
- Engineering (Nuclear)'
6N11 B Missionary Ridge Place-1101 Market Street-Chattanooga, TN 37402-2801 Gentlemen:
SUBJECT: . REPORT NOS. 50-327/85-29 AND 50-328/85-29 (CORRECTION)
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'On October 25, 1985, NRC-transmitted:the subject report of inspection activities
- at your Sequoyah facilit Due to an administrative error, Enclosure 1, Notice
'of - Violation, was not included with the inspection report transmitted on October 25,1985. -We are reissuing the report in its entirety. Please replace
- the earlier copy with the enclosed repor cShould you have any questions concerning this letter, please contact u
Sincerely, Original signed by D. Verrelli Roger D. Walker, Director Division of Reactor Projects
Enclosure:
= Inspection Report Nos. 50-327/85-29-and 50-328/85-29
REGION il g
,, j 101 MARIETTA STREET, * 2 ATLANTA, GEORGI A 30323 s*...*/ .
l Report Nos.: 50-327/85-29 and 50-328/85-29 Licensee: Tennessee Valley Authority 500A Chestnut Street
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Chattanooga, TN 30372 Docket Nos.: 50-327 and 50-328 License Nos.: DPR-77 and DPR-79 Facility Name: Sequoyah 1 and 2 Inspection Condu ted: August 20-23, 1985 .
Inspector: b N 88 Date Sign /
Approved by;7 - =c=- -
, M g'/J./ K Flake, 5 tTon" h'cf ~ Date Signed Engineeri Divi of Reactor Safety SUMMARY Scope: This special, unannounced inspection entailed 24 inspector-hours on site in the areas of safety-related cable tray support systems, and licensee event reports -associated with the failure of the chemical and volume control system sampling line Results: Two violations were identified - Inadequate design controls for seismically designed cable tray support systems, paragraph 5.b; Inadequate design controls for safety-related cable tray support baseplate installations, paragraph 5.c.
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REPORT DETAILS Persons Contacted Licensee Employees
- P. Wallace,-Plant Manager
- L. Nobles, Superintendent, Operations and Engineering
- J. Vineyard, Project Manager
- H. Rankin, Manager, Desigli Services
- C. Johnson, Civil Project Engineer
- K. Mogg, Section Supervisor, Design Services
- K. Spates, Civil Engineer, Civil Engineering Branch (CEB)
- T. Bucy, Civil Section Supervisor, CEB
- J. Holland, Project Engineer, Site Services
- G. Kirk, Compliance Supervisor
- D. Carven, Quality Assurance Supervisor L. Katcham, Civil Engineer, CEB Other licensee employees contacted included engineers, technicians, security force members, and office personne * Attended exit interview Exit Interview The inspection scope and findings were summarized on August 23, 1985, with those persons indicated in paragraph 1 above. The inspector described the areas inspected and discussed in detail the inspection finding No dissenting comments were received from the license (0 pen) Violation 327, 328/85-29-01, Inadequate Design Controls for Seismically Designed Cable Tray Support, paragraph (0 pen) Violation 327, 328/85-29-02, Inadequate Design Control for
. Safety-Related Cable Tray Support Baseplate Installations, paragraph (0 pen) Unresolved Item 327, 328/85-29-03, Evaluation of the CVCS Sampling Line Failure, paragraph The licensee did not identify as proprietary any of the materials provided to or reviewed by the inspector during this inspectio . Licensee Action on Previous Enforcement Matters This subject was not addressed in the inspectio , --- . - - . _
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2 Unresolved Items Unresolved items are matters about which more information is required to determine whether they are acceptable or may involve violations or devia-tion One new unresolved item identified during this inspection is discussed in paragraph . Safety-Related Cable Tray Support Systems Design Document Review The inspector reviewed portions of the follcwing documents pertaining to safety-related cable tray support systems to determine whether appropriate design criteria have been - established and whether they comply with NRC requirements and the licensee commitment Design Criteria No. SQN-DC-V-1.3.4, Category I Cable Tray Support System, August 20, 1975
- Design Input Memorandum for Design Criteria for Category I Cable Tray Supports, May 1, 1985
- CEB 80-16, Dynamic Earthquake Analysis of the Diesel Generator Building and Response Spectra for Attached Equipment, April 9, 1973
- CEB 80-67, Dynamic Earthquake Analysis of the Additional Diesel Generator Building and Response Spectra for Attached Equipment, June 24, 1983
[ - Supplementary Seismic Analysis for the Additional Diesel Generator
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Building, August 27, 1981
- CEB Report No. 75338, Static Load Tests of Cable Trays and Support-ing Connections, December 4, 1975 Design Calculations Review The inspector reviewed portions of the following design calculations associated with the safety-related cable trays support system Location Reference Drawing I Control Building 48N1297, 1298, 1299 and 1300
, Brackets A thru J Auxiliary Building 48N1363 thru 1369 Reactor Building 48W 952-1 and 952-2 i
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- Diesel Generator Building- 18N251 thru 253 l l
- Additional- Diesel Generator Building 18W298-1 and 298-2 l
- Discrepancies were identified during the revie ~
The above cable tray support design calculations were reviewed for l conformance to analysis criteria, applicable codes HRC requirements '
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-and the licensee commitments. Additionally, these calculations were l evaluated during the review for thoroughness, clarity, consistency, and
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accuracy. In general, the design . calculations appeared to be accep-table with the exception of those for the two diesel generator build-ings identified below:
(1) Design Calculations for cable tray support mark numbers 9,11, 11A, 31 and 32 in the diesel generator building were reviewed. It
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was found that these calculations were performed by using a modal superposition dynamic computer analysis. The computer programs
consider only the dynamic modal response in the frequency range of interest. There was no consideration given to the effects of rigid body motion from the response sptetrum zero period accelera-tion (ZPA). A review of the aforementioned design calculation 1 -revealed that many of the cable tray supports were rigidly or close to rigidly designed. As a' result, the accelerations gene-
- rated from the dynamic analysis were generally small when compared
- to the response spectrum peak accelerations. The use of these
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small accelerations alone in the design of the rigid supports for i the cable tray support systems is nonconservative and is inadequ-ate in tenns of NRC requirement This can be seen from the
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design calculations for cable tray supports mark numbers 31 and 32, where zero acceleration in the X direction and 0.08g accelera-
! tion in the Z direction were generated from the dynamic computer
- analysis and were used in the design. The effects of ZPA or the f
ground acceleration had not been considered in the design analysis
when these cable tray supports were rigidly designed. For operat-ing basis earthquake (OBE), the response spectrum ZPA or the l ground acceleration -(elevation 722'-0") is 0.379 which is the
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additional seismic . load that should have been considered in the design analysis.
I (2) Design calculations for cable tray support mark numbers 1 and 2 in the additional diesel generator building were reviewed. The
- inspector noted that the same dynamic computer programs were i- utilized in the design analysi The effects of ZPA had not been
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onsidered in the design analysis.
- The inspector held discussion with licensee representatives
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regarding the above concerns. It was concluded that the effects !
of the response spectrum ZPA or the ground accelerations should !
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have been considered in the design analysis when the supports were l
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rigidly designed. Since the cable tray supports in the two diesel L
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generator buildings were rigidly designed and had not considered the effects of the response spectrum ZPA, these supports may not be able to serve their intended function during a seismic even The improper design of the cable tray support systems is a viola-tion of 10 CFR 50, Appendix B, Criterion III, and is identified as Violation 327, 328/85-29-01, Inadequate Design Controls for Seismically Designed Cable Tray Support Design Drawing Review The inspector reviewed portions of the following design drawings associated with the cable tray support system Location Drawing Number
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- Auxiliary Building 48N1369, Rev. 2 Reactor Building 48N1505 Control Building 48N1297, 1298, 1300, 1302 Diesel Generator Building 18N251, 252 and 253
- Indicates discrepancy identified during the revie The above design drawings were partially reviewed for conformance to design analysis and the licensee commitments. The inspector found that baseplates with oversize holes were actually used in the installatio Design Drawing 48N1369, Rev. 2, specified 1 3/16" diameter holes in the baseplates for 3/4" diameter wedge bolts. In accordance with TVA procedure, the currect hole size in a baseplate should be 1/16" larger than the nominal bolt size. In this case, the correct hole size in the baseplate should have been 13/16". The inspector held discussions with licensee representative with respect to the above concerns. It was found that a total number of 16 baseplates inspected, (8 per unit),
all were actually installed with each baseplate containing 4 drilled holes that were 3/8" larger than the required size. It was further noted that the oversize holes specified on the design drawing was a design error. As a result, these 16 baseplates may not be able to
- serve their intended function as required by the desig This is a violation of 10 CFR 50, Appendix B, Criterion III, and is identified as Violation 327, 328/85-29-02, Inadequate Design Controls for
. Safety-related Cable Tray Support Baseplate Installations.
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Within the areas inspected, two violations were identifie . Licensee Event Followup (92700)
' . Licensee event status The licensee informed Region II on August 12, 1985, that a routine t
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walkthrough by En auxiliary. operator identified a crack through the weld arescof the chemical and volume control system (CVCS) 3/4 inch sampling 'line. The weldscrack is almost identical in location te the
.one reported by the licensee on Unit 2, on July 30, 1985. The licensee
'has completed weld repairs on both units, and' pipe supports are being designed and installed on,both branch line t
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Neither of the two branch lines contained supports prior to detection of the leaks. The licensee hts completed walkdowns of the CVCS lines in both units, except high radiation areas in containment, and found no other unsupported branch lines.
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Metallurgical analysis of the Unit 2 crack indicated that the failure mechanism was low stress, and high cycle fatigue._ Vibrational analysis of both lines has not identified the source of any vibration which may have occurred.. The licensee is continuing to make efforts and to-determine the cause of the failure to the two sampling lines,.,
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, Piping Stress and Pipe Support Eysluation t,
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The inspector held! discussions with licensee representative regarding the above concerns.h It was determined tha't the piping group was to
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perform two design ) analyses. One was to determine whether a pipe
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- the support otherwas was require'd to determine in acco(ilether w the allowable code stresses weredance with l' being met in accordance with the rigorous analysis criteria. Results of the two design analyses indicated that no supports were required for the two sampling lines in terms of meeting the flexibility requirements
- and the stress allowable requirement The inspector reviewed portions of the aforementioned design analyses and the-design guidelines contained in the CEB Report 75-18. It was found that the design analysis-on sheet No. 4 contained an error in the flexibility check in that 0.00045 was shown to be less than 0.000 With the error corrected., the design analysis did indicate that a
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support was require / for the 3/4 inch samp1 ng lines. The above design analysis had been checked ard reviewed by the licensee responsible engineers prior to the inspector's finding. The inspector held discus-sions with -licenseevepresentatives .with regard to the above concer It was decided that the licensee's responsible group was to pursue a further des'1gn analysis in that a more detailed analysis was required to determine whether a support was neede Pending further evaluations
- to be performed by the licensee to determine the cause of the failure ~
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for the sampling line, this matte.r is identified' as Unresolved Item 327, 328/85-29-03, Evaluation of,the CVCS Sainfling Line Failur Within the areas inspected, no violations or deviations were identifi- '
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c 4 ~ Licensee's Corrective Action *
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Subsequent to the inspector's finding with respect to the seismic analysis, the licensee issued a memorandum on August 23, 1985, stating that TVA has committed to reanalyze the cable tray supports in the two diesel generator buildings to include the effects of the additional seismic loads that were associated with the response spectrum ZPA or the ground accelerations. In addition, the following actions will be taken; Civil Project Engineer will be responsible tor limiting the performance of the dynamic modal analysis'to selected qualified individual . The CEB central staff will provide direction and training of the use of dynamic modal analysis where require A design input memorandum will be issued for the cable tray support design criteri _ - _ _ - - . _