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Category:CORRESPONDENCE-LETTERS
MONTHYEARML17313B0991999-10-14014 October 1999
Forwards LER 99-005-00 Reporting Findings & Corrective Actions Taken as Result of Out of Tolerance MSSV Condition in Unit 1 Which Was Discovered During pre-outage Testing
ML17313B0881999-10-12012 October 1999
Forwards Response to NRC 990831 RAI Re Several Relief Requests That Accompanied Second ten-yr Interval ISI Program Submitted on 980317.Revised Relief Request 6 Is Provided in Encl 2
ML17300B3501999-09-29029 September 1999
Forwards Revised Bases Pages,Providing Addl Discussion of Options Available to Exit Required Action G of TS 3.8.1 & Revised Page for TS 3.3.7,in Response to NRC RAI Re Proposed Amend to TS 3.8.1 & 3.3.7
ML17300B3551999-09-28028 September 1999
Responds to Aministrative Ltr 99-03, Preparation & Scheduling of Operator Licensing Exams. Proposed Palo Verde Operator Licensing Exam Schedule & Estimated Number of Applicants Planning to Take Exams Encl
ML17313B0851999-09-24024 September 1999
Requests Approval of Alternative to Repair Requirements of 10CFR50.55a,authorizing Alternative Use of Mechanical Nozzle Seal Assemblies,As Described in Encl,For RCS Hot Leg Instrumentation & Sampling Nozzles for Two Operating Cycles
ML17313B0781999-09-20020 September 1999
Forwards Rev 22 to PVNGS Emergency Plan. Summary Description of Changes,Included
ML17300B3331999-09-14014 September 1999
Forwards MOR for August 1999 & Revised MOR for Jul 1999 for Pvngs,Units 1,2 & 3
ML17300B3351999-09-0808 September 1999
Informs That Repairs to Plant EDG 2A Jacket Water Cooling sub-sys Were Completed & EDG Was Declared Operable on 990903 at Approx 21:45 Mst.Noed Was Not Necessary,Since 72 Hour Completion Time Was Met
ML17313B0761999-09-0303 September 1999
Requests Enforcement Discretion to TS Section 3.8.1, AC Sources - Operating. Enforcement Discretion Would Allow,On One Time Basis,Extension of Completion Time in Required Action B.4 of TS 3.8.2 from 72 H to 108 H
ML17313B0731999-08-31031 August 1999
Informs That RR Bean (License OP-50452-1) Has Been Permanently Reassigned to Position That Does Not Require License & Requests That Individuals License Be Expired Per 10CFR55.55
ML20211A9501999-08-12012 August 1999
Discusses 990720-21 Workshop Conducted in Region IV Ofc,Re Exchange of Info in Area of Use of Risk Insights in Regulatory Activities.List of Attendees,Summary of Topic & Issues,Agenda & Copies of Handouts Encl
ML17313B0581999-08-0606 August 1999
Forwards Rev 1 of Changes to TS Bases Implemented Between Aug 1998 & Jul 1999.Insertion Instructions & List of Affected Pages Included
ML17313B0311999-08-0303 August 1999
Submits Response to NRC AL 99-02, Operating Reactor Licensing Actions Estimates, for Fys 2000 & 2001
ML20210L1461999-08-0303 August 1999
Informs That NRC Plans to Administer Gfes of Written Operator Licensing Exam on 991006.Requests Submittal of Ltr Identifying Individuals Taking Exam,Personnel Allowed Access to Exams & Mailing Address for Exams
ML17313B0431999-07-30030 July 1999
Advises of Listed Senior Mgt Changes That Have Taken Place at Plant
ML17313B0441999-07-30030 July 1999
Forwards Comments on Draft NRC Repts Evaluation of AOVs at Us Light-Water Reactors (1999) & Idaho Natl Engineering & Environ Lab Rept (INEEL)EXT-98-00383,Study of AOVs in Npps.
ML17313B0151999-07-20020 July 1999
Submits Request to Obtain All Data Previously Sent by PVNGS & Currently in REIRS for OLs NPF-41,NPF-51 & NPF-74.Data Is Requested in Electronic Form (Ascii Format) as It Currently Exists in REIRS Sys
ML17313B0091999-07-20020 July 1999
Forwards Requested Calculations Performed to Verify That Increase in Max Radially Averaged Enrichment for Fuel Assemblies from 4.3 Weight Percent to 4.8 Weight Percent Did Not Affect Requirements for TSs 3.7.15,3.7.17 & 4.3.1
ML17313B0171999-07-16016 July 1999
Forwards LER 99-005-00,re Automatic Rt Which Occurred on 990618,following Sensor Failure in Core Protection Calculators.Corrective Actions Described in LER Are Not Necessary to Maintain Compliance with Regulations
ML17300B3111999-07-15015 July 1999
Forwards PVNGS Unit 2 ISI Rept for Eighth Refueling Outage. No Commitments Made to NRC by Ltr
ML17300B3141999-07-15015 July 1999
Forwards Corrected Electronic Files for Individual Monitoring Repts for 1998.Original Electronic Files Were Found to Have Two Administrative Errors,Which Has Been Corrected.Encl Withheld,Per 10CFR2.790
ML20209G6771999-07-0808 July 1999
Forwards Supplemental Info to Confirm That Decommissioning Funding Plans of Public Service Co of Nm for Interests in PVNGS Have Been Reviewed by Nm Public Regulation Commission. Final Order & Recommended Decisions in Case 2742,also Encl
ML17300B2931999-07-0202 July 1999
Submits Withdrawal of Relief 5 for Second ISI Interval for Units 1,2 & 3.Proposed Alternative Is Related to Exam Requirements for Component Supports for Second ISI Interval
ML17313A9951999-06-26026 June 1999
Provides Response to NRC GL 98-01,Suppl 1, Y2K Readiness of Computer Sys at Nuclear Power Plants.
ML17300B2831999-06-26026 June 1999
Requests NRC Approval of Proposed Alternative IAW Provisions of 10CFR50.55a(a)(3)(i) to 10CFR50.55a(g) & Requirements of ASME Boiler & Pressure Vessel Code Section XI for Repairs & Installation.Description of Proposed Alternative,Encl
ML17313A9901999-06-15015 June 1999
Forwards Response to RAI Re GL 96-05, Periodic Verification of Design-Basis Capability of Safety-Related Movs. No Commitments Being Made to NRC by Ltr
ML17313A9521999-05-24024 May 1999
Notifies NRC That Ja Proctor,License SOP-50314,has Been Permanently Reassigned to Position That Does Not Require License.License Should Be Expired,Per 10CFR55.55
ML20206Q3111999-05-18018 May 1999
Final Response to FOIA Request for Documents.Forwards App a Records Being Released in Entirety
ML17313A9311999-05-13013 May 1999
Notifies NRC That Rev 2 to COLR for Unit 2 Remains Applicable Following Recently Completed Unit 2 Reload
ML17313A9481999-05-12012 May 1999
Informs of Change Needed in Order to Update Current Mailing List.Future Mailings for J Horne Should Be Forwarded to Listed Address
ML17313A9261999-05-0707 May 1999
Forwards LER 99-004-00,per 10CFR50.73.LER Repts Findings & Corrective Actions Taken as Result of Unit 2 Out of Tolerance Pressurizer Safety Valve (Psv) Condition Which Was Discovered During Outage Testing
ML20206H1931999-05-0303 May 1999
Forwards 1998 Annual Rept, for SONGS Units 2 & 3 & PVNGS Units 1,2 & 3.SCEs Form 10K Annual Rept to Securites & Exchange Commission for Fiscal Yr Ending 981231,encl
ML17313A9091999-04-30030 April 1999
Forwards Proprietary Proposed Test Outlines for Initial License Exams to Be Administered at PVNGS in Aug/Sept 1999. No Commitments Are Contained in Ltr.Proprietary Info Withheld
ML17313A9181999-04-30030 April 1999
Forwards Electronic File of Individual Monitoring Repts for 1998.Encl Withheld Per 10CFR2.790
ML17313A9191999-04-30030 April 1999
Forwards Special Rept 2-SR-99-001 Re SG Tube Plugging in PVNGS Unit 2,per TS Reporting Requirement 5.6.8.Complete Results of SG Tube Inservice Insp Will Be Submitted by 000422
ML17300B3751999-04-23023 April 1999
Forwards LER 99-003-00,reporting Condition Prohibited by TS 3.7.17 Where Spent Fuel Assembly Was Stored in Inappropriate Region in Spent Fuel Pool
ML17313A9081999-04-23023 April 1999
Documents 990421 Telcon with E Emeigh,Which Requested Extension for Submitting Next Matl Balance Rept for Pvngs,As Required by 10CFR70.53 & 74.13.Required Info Will Be Submitted by 990531
ML20205T7421999-04-21021 April 1999
Forwards Partially Withheld Insp Repts 50-528/99-05, 50-529/99-05 & 50-530/99-05 on 990322-26.Determined That Security Program Properly Implemented.Insp Repts Details Withheld (Ref 10CFR73.21)
ML17313B0271999-04-21021 April 1999
Forwards Proprietary Epec Pro Forma Cashflow Statement for 1999.Proprietary Info Withheld,Per 10CFR2.790.Affidavit Encl
ML17313A9031999-04-21021 April 1999
Forwards Rev to Relief Request 12 Submitted 990420 to Second 10-yr ISI Interval.Revised Relief Request Discusses in More Detail Actions APS Will Take When There Is Identified Leakage from Bolted Connection
ML17313A8971999-04-20020 April 1999
Requests Use of Alternatives to 10CFR50.55a(g) Inservice Insp Requirements.Proposed Alternatives Are Related to Visual Exam of Bolted Connections
05000529/LER-1999-002, Forwards LER 99-002-00 Re Findings & Corrective Actions Taken as Result of Plant Out of Tolerance MSSV Condition Which Was Discovered During pre-outage Testing1999-04-19019 April 1999
Forwards LER 99-002-00 Re Findings & Corrective Actions Taken as Result of Plant Out of Tolerance MSSV Condition Which Was Discovered During pre-outage Testing
ML17313A8931999-04-14014 April 1999
Forwards LER 99-003,reporting Condition Prohibited by TSs That Existed When Surveillance Requirement to Verify Essential Chilled Water Sys Valve Positions Was Not Met
ML20205Q0821999-04-13013 April 1999
Forwards Second ISI Interval Relief Request 10 from ASME Section XI & Applicable Addenda Re Visual Exams Performed Subsequent to Repair or Replacement of Component or Alteration of Item
ML17313A8901999-04-13013 April 1999
Forwards LER 98-003-01 Re MSSV as-found Lift Pressures out- Side of TS Limits.Ler Suppl Provides Evaluation Findings from Unit 3 out-of-tolerance MSSVs Conditions Which Were Discovered During pre-outage Testing
ML17313A8831999-04-0808 April 1999
Forwards 1998 Annual Radioactive Effluent Release Rept for Pvngs,Units 1,2 & 3 & Rev 13 to ODCM, for Pvngs,Units 1,2 & 3 IAW TS 5.6.3
ML20205F3491999-03-30030 March 1999
Forwards Proprietary & non-proprietary Info Re Status of Decommissioning Funding for Pvngs,Units 1,2 & 3,per 10CFR50.75(f)(1).Proprietary Info Withheld,Per Requirements of 10CFR2.790(b)(1)
ML17313A8671999-03-24024 March 1999
Submits Info Re Present Levels & Sources of Property Insurance Maintained for Pvngs,Per 10CFR50.54(w)(3)
ML17313A8601999-03-16016 March 1999
Forwards Revised Relief Requests PRR-05,PRR-06 & PRR-11 to Clarify That Proposed Design Flow Testing for Lpsi,Hpsi & Containment Spray Pumps Will Be Performed Using Instruments That Comply with Code Requirements,Per 990226 Telcon
ML17313A8551999-03-0505 March 1999
Requests Proposed Code Alternative IAW 10CFR50.55a(e)(3),as Acceptable Alternative to Requirements of 10CFR50.55a(e)(1), for Installation of in-line safety-related Flow Measurement Instrument in ASME Class 3 Pipe
1999-09-08
[Table view]
Category:INCOMING CORRESPONDENCE
MONTHYEARML17313B0991999-10-14014 October 1999
Forwards LER 99-005-00 Reporting Findings & Corrective Actions Taken as Result of Out of Tolerance MSSV Condition in Unit 1 Which Was Discovered During pre-outage Testing
ML17313B0881999-10-12012 October 1999
Forwards Response to NRC 990831 RAI Re Several Relief Requests That Accompanied Second ten-yr Interval ISI Program Submitted on 980317.Revised Relief Request 6 Is Provided in Encl 2
ML17300B3501999-09-29029 September 1999
Forwards Revised Bases Pages,Providing Addl Discussion of Options Available to Exit Required Action G of TS 3.8.1 & Revised Page for TS 3.3.7,in Response to NRC RAI Re Proposed Amend to TS 3.8.1 & 3.3.7
ML17300B3551999-09-28028 September 1999
Responds to Aministrative Ltr 99-03, Preparation & Scheduling of Operator Licensing Exams. Proposed Palo Verde Operator Licensing Exam Schedule & Estimated Number of Applicants Planning to Take Exams Encl
ML17313B0851999-09-24024 September 1999
Requests Approval of Alternative to Repair Requirements of 10CFR50.55a,authorizing Alternative Use of Mechanical Nozzle Seal Assemblies,As Described in Encl,For RCS Hot Leg Instrumentation & Sampling Nozzles for Two Operating Cycles
ML17313B0781999-09-20020 September 1999
Forwards Rev 22 to PVNGS Emergency Plan. Summary Description of Changes,Included
ML17300B3331999-09-14014 September 1999
Forwards MOR for August 1999 & Revised MOR for Jul 1999 for Pvngs,Units 1,2 & 3
ML17300B3351999-09-0808 September 1999
Informs That Repairs to Plant EDG 2A Jacket Water Cooling sub-sys Were Completed & EDG Was Declared Operable on 990903 at Approx 21:45 Mst.Noed Was Not Necessary,Since 72 Hour Completion Time Was Met
ML17313B0761999-09-0303 September 1999
Requests Enforcement Discretion to TS Section 3.8.1, AC Sources - Operating. Enforcement Discretion Would Allow,On One Time Basis,Extension of Completion Time in Required Action B.4 of TS 3.8.2 from 72 H to 108 H
ML17313B0731999-08-31031 August 1999
Informs That RR Bean (License OP-50452-1) Has Been Permanently Reassigned to Position That Does Not Require License & Requests That Individuals License Be Expired Per 10CFR55.55
ML17313B0581999-08-0606 August 1999
Forwards Rev 1 of Changes to TS Bases Implemented Between Aug 1998 & Jul 1999.Insertion Instructions & List of Affected Pages Included
ML17313B0311999-08-0303 August 1999
Submits Response to NRC AL 99-02, Operating Reactor Licensing Actions Estimates, for Fys 2000 & 2001
ML17313B0441999-07-30030 July 1999
Forwards Comments on Draft NRC Repts Evaluation of AOVs at Us Light-Water Reactors (1999) & Idaho Natl Engineering & Environ Lab Rept (INEEL)EXT-98-00383,Study of AOVs in Npps.
ML17313B0431999-07-30030 July 1999
Advises of Listed Senior Mgt Changes That Have Taken Place at Plant
ML17313B0151999-07-20020 July 1999
Submits Request to Obtain All Data Previously Sent by PVNGS & Currently in REIRS for OLs NPF-41,NPF-51 & NPF-74.Data Is Requested in Electronic Form (Ascii Format) as It Currently Exists in REIRS Sys
ML17313B0091999-07-20020 July 1999
Forwards Requested Calculations Performed to Verify That Increase in Max Radially Averaged Enrichment for Fuel Assemblies from 4.3 Weight Percent to 4.8 Weight Percent Did Not Affect Requirements for TSs 3.7.15,3.7.17 & 4.3.1
ML17313B0171999-07-16016 July 1999
Forwards LER 99-005-00,re Automatic Rt Which Occurred on 990618,following Sensor Failure in Core Protection Calculators.Corrective Actions Described in LER Are Not Necessary to Maintain Compliance with Regulations
ML17300B3111999-07-15015 July 1999
Forwards PVNGS Unit 2 ISI Rept for Eighth Refueling Outage. No Commitments Made to NRC by Ltr
ML17300B3141999-07-15015 July 1999
Forwards Corrected Electronic Files for Individual Monitoring Repts for 1998.Original Electronic Files Were Found to Have Two Administrative Errors,Which Has Been Corrected.Encl Withheld,Per 10CFR2.790
ML20209G6771999-07-0808 July 1999
Forwards Supplemental Info to Confirm That Decommissioning Funding Plans of Public Service Co of Nm for Interests in PVNGS Have Been Reviewed by Nm Public Regulation Commission. Final Order & Recommended Decisions in Case 2742,also Encl
ML17300B2931999-07-0202 July 1999
Submits Withdrawal of Relief 5 for Second ISI Interval for Units 1,2 & 3.Proposed Alternative Is Related to Exam Requirements for Component Supports for Second ISI Interval
ML17313A9951999-06-26026 June 1999
Provides Response to NRC GL 98-01,Suppl 1, Y2K Readiness of Computer Sys at Nuclear Power Plants.
ML17300B2831999-06-26026 June 1999
Requests NRC Approval of Proposed Alternative IAW Provisions of 10CFR50.55a(a)(3)(i) to 10CFR50.55a(g) & Requirements of ASME Boiler & Pressure Vessel Code Section XI for Repairs & Installation.Description of Proposed Alternative,Encl
ML17313A9901999-06-15015 June 1999
Forwards Response to RAI Re GL 96-05, Periodic Verification of Design-Basis Capability of Safety-Related Movs. No Commitments Being Made to NRC by Ltr
ML17313A9521999-05-24024 May 1999
Notifies NRC That Ja Proctor,License SOP-50314,has Been Permanently Reassigned to Position That Does Not Require License.License Should Be Expired,Per 10CFR55.55
ML17313A9311999-05-13013 May 1999
Notifies NRC That Rev 2 to COLR for Unit 2 Remains Applicable Following Recently Completed Unit 2 Reload
ML17313A9481999-05-12012 May 1999
Informs of Change Needed in Order to Update Current Mailing List.Future Mailings for J Horne Should Be Forwarded to Listed Address
ML17313A9261999-05-0707 May 1999
Forwards LER 99-004-00,per 10CFR50.73.LER Repts Findings & Corrective Actions Taken as Result of Unit 2 Out of Tolerance Pressurizer Safety Valve (Psv) Condition Which Was Discovered During Outage Testing
ML20206H1931999-05-0303 May 1999
Forwards 1998 Annual Rept, for SONGS Units 2 & 3 & PVNGS Units 1,2 & 3.SCEs Form 10K Annual Rept to Securites & Exchange Commission for Fiscal Yr Ending 981231,encl
ML17313A9191999-04-30030 April 1999
Forwards Special Rept 2-SR-99-001 Re SG Tube Plugging in PVNGS Unit 2,per TS Reporting Requirement 5.6.8.Complete Results of SG Tube Inservice Insp Will Be Submitted by 000422
ML17313A9181999-04-30030 April 1999
Forwards Electronic File of Individual Monitoring Repts for 1998.Encl Withheld Per 10CFR2.790
ML17313A9091999-04-30030 April 1999
Forwards Proprietary Proposed Test Outlines for Initial License Exams to Be Administered at PVNGS in Aug/Sept 1999. No Commitments Are Contained in Ltr.Proprietary Info Withheld
ML17313A9081999-04-23023 April 1999
Documents 990421 Telcon with E Emeigh,Which Requested Extension for Submitting Next Matl Balance Rept for Pvngs,As Required by 10CFR70.53 & 74.13.Required Info Will Be Submitted by 990531
ML17300B3751999-04-23023 April 1999
Forwards LER 99-003-00,reporting Condition Prohibited by TS 3.7.17 Where Spent Fuel Assembly Was Stored in Inappropriate Region in Spent Fuel Pool
ML17313B0271999-04-21021 April 1999
Forwards Proprietary Epec Pro Forma Cashflow Statement for 1999.Proprietary Info Withheld,Per 10CFR2.790.Affidavit Encl
ML17313A9031999-04-21021 April 1999
Forwards Rev to Relief Request 12 Submitted 990420 to Second 10-yr ISI Interval.Revised Relief Request Discusses in More Detail Actions APS Will Take When There Is Identified Leakage from Bolted Connection
ML17313A8971999-04-20020 April 1999
Requests Use of Alternatives to 10CFR50.55a(g) Inservice Insp Requirements.Proposed Alternatives Are Related to Visual Exam of Bolted Connections
05000529/LER-1999-002, Forwards LER 99-002-00 Re Findings & Corrective Actions Taken as Result of Plant Out of Tolerance MSSV Condition Which Was Discovered During pre-outage Testing1999-04-19019 April 1999
Forwards LER 99-002-00 Re Findings & Corrective Actions Taken as Result of Plant Out of Tolerance MSSV Condition Which Was Discovered During pre-outage Testing
ML17313A8931999-04-14014 April 1999
Forwards LER 99-003,reporting Condition Prohibited by TSs That Existed When Surveillance Requirement to Verify Essential Chilled Water Sys Valve Positions Was Not Met
ML20205Q0821999-04-13013 April 1999
Forwards Second ISI Interval Relief Request 10 from ASME Section XI & Applicable Addenda Re Visual Exams Performed Subsequent to Repair or Replacement of Component or Alteration of Item
ML17313A8901999-04-13013 April 1999
Forwards LER 98-003-01 Re MSSV as-found Lift Pressures out- Side of TS Limits.Ler Suppl Provides Evaluation Findings from Unit 3 out-of-tolerance MSSVs Conditions Which Were Discovered During pre-outage Testing
ML17313A8831999-04-0808 April 1999
Forwards 1998 Annual Radioactive Effluent Release Rept for Pvngs,Units 1,2 & 3 & Rev 13 to ODCM, for Pvngs,Units 1,2 & 3 IAW TS 5.6.3
ML20205F3491999-03-30030 March 1999
Forwards Proprietary & non-proprietary Info Re Status of Decommissioning Funding for Pvngs,Units 1,2 & 3,per 10CFR50.75(f)(1).Proprietary Info Withheld,Per Requirements of 10CFR2.790(b)(1)
ML17313A8671999-03-24024 March 1999
Submits Info Re Present Levels & Sources of Property Insurance Maintained for Pvngs,Per 10CFR50.54(w)(3)
ML17313A8601999-03-16016 March 1999
Forwards Revised Relief Requests PRR-05,PRR-06 & PRR-11 to Clarify That Proposed Design Flow Testing for Lpsi,Hpsi & Containment Spray Pumps Will Be Performed Using Instruments That Comply with Code Requirements,Per 990226 Telcon
ML17313A8551999-03-0505 March 1999
Requests Proposed Code Alternative IAW 10CFR50.55a(e)(3),as Acceptable Alternative to Requirements of 10CFR50.55a(e)(1), for Installation of in-line safety-related Flow Measurement Instrument in ASME Class 3 Pipe
ML17313A8241999-02-23023 February 1999
Advises That Kp Jarvis,License OP-50287-1,no Longer Needs to Maintain License as Permanently Assigned to Position Requiring No License
ML17313A8111999-02-18018 February 1999
Forwards PVNGS Unit 3 7th Refueling Outage, Which Provides Complete Results of SG Tube Inservice Insp Performed,Per TS 5.6.8
ML17313A8721999-02-16016 February 1999
Discusses Resolution of Generic Safety Issue 171, ESF Failures from Loss-of-Offsite Power Subsequent to Loca. Util Has Low Vulnerability to Loca/Grid Collapse/Loop Scenario
ML17313A7611999-01-22022 January 1999
Forwards PVNGS Unit 3 Inservice Insp Rept Seventh Refueling Outage, Per 10CFR50.55a.Ltr Contains No New Commitments
1999-09-08
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Text
CATEGORY 1 REGULATO Y INFORMATION DISTRIBUTIO 'YSTEM (RIDS)
ACCESSION NBR:9904290295 DOC.DATE: 99/04/21 NOTARIZED: NO DOCKET FACIL:STN-50-528 Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 QSTh+50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH. NAME AUTHOR AFFILIATION IDE,W.E. Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT 'AFFILIATION Records Management Branch (Document Control Desk)
SUBJECT:
Forwards rev to relief request 12 submitted 990420 to second 10-yr ISI., interval. Revised relief request discusses in more detail actions APS will take when there is identified leakage from bolted connection.
DISTRIBUTION CODE: A047D COPIES RECEIVED:LTR ENCL SIZE: E TITLE: OR Submittal: Inservice/Testing/Relief from ASME Code GL-89-04 Q
NOTES: STANDARDIZED PLANT 05000528 Standardized plant. 050005290 Standardized plant. 05000530 R
RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL DLPM/LPD4-2 1 1 DLPM/LPD4-2 1 1 FIELDS,M 1 1 INTERNAL: ACRS 1 1 FILE CENTER 1 1 NRR/DE/EMEB 1 1 NUDOCS-ABSTRACT 1 1 OGC/HDS2 1 0 RES/DET/EIB 1 1 D RES/DET/EMMEB 1 1 0
EXTERNAL: LITCO ANDERSON 1 1 NOAC 1 1 NRC PDR 1 1
'M N
NOTE TO ALL nRIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD) ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED: LTTR 13 ENCL 12
~$ il g.
C C -,/Pl I
L ~CK
10CFR50.55a(a)(3)
William E. Ide Mail Station 7605 Palo Verde Nuclear Vice President TEL 602/393-61 1 6 P.o. Box 52034 Generating Station Nuclear Engineering FAX 602/3936077 Phoenix, AZ 85072-2034 102-04274-WEI/AKK/RKB U.S. Nuclear Regulatory Commission April 21, 1999 ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555-0001
Dear Sirs:
References:
APS Letter No. 102-04273-WEI/AKK/TNW/RKB, dated April 20, 1999, from W. E. Ide, APS, to NRC, "Second Inservice Inspection Interval (Relief Request Nos. 11 and 12)."
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2 and 3 Docket Nos. STN 50-528/529/530 Revision to Second Inservice Inspection Interval (Relief Request No. 12)
On April 20, 1999, Arizona Public Service Company (APS) submitted Relief Request Nos. 11 and 12 to the second 10-year Inservice Inspection (ISI) interval in the above referenced letter. Enclosed is a revision to Relief Request No. 12, which supersedes the previous version submitted in the referenced letter. The enclosed relief request does not contain substantive changes from the original, but has been rewritten to provide added detail and clarification. Specifically, the revised relief request discusses in more detail the actions APS will take when there is identified leakage from a bolted connection.
APS wishes to reconfirm that NRC approval for Relief Request Nos. 11 and 12 is requested by April 26, 1999.
APS considers the Alternate Testing methodology proposed in Relief Request No. 12 to be a commitment.
Should you have any questions, please contact Scott A. Bauer at (602) 393-5978.
9'704290295 9'P042i PDR ADQCK 05000528 Sincerely, 9 PDR WEI/AKK/RKB/rlh Enclosure.
ri A P cc: E. W. Merschoff M. B. Fields J. H. Moorman
I l ENCLOSURE I ASME SECTION XI RELIEF REQUEST NO. 12 TO THE SECOND 10 YEAR ISI INTERVAL FOR THE PALO VERDE NUCLEAR GENERATING STATION
igt 1 '
0~
Relief Request No. 12 Examination of Bolted Connections Code Class 1,2,3 Code Reference IWA-5250(a), 1989 Ed. and IWA-5250(a), 1992 Ed., 1992A Examination Category B-P, C-H, D-B item Numbers All Component Description Bolted Connections PVNGS Units All Requirement IWA 5250 (a) states: "The sources of leakage detected during the conduct of a system pressure test shall be located.and evaluated by the Owner for corrective action as follows......(2) If leakage occurs at a bolted connection, one of the bolts shall, be removed, VT-3 examined, and evaluated in accordance with IWA-3100. The bolt selected shall be the one closest to the source. of. leakage. When the removed bolt has evidence of degradation, all remaining bolting;in the connection shall be removed, VT-3 examined, and evaluated in accordance with IWA-3100."
Alternate PVNGS proposes the following alternative methodology to the Testing requirements of IWA-5250(a),, either. the requirements of (a) or (b) below will be met for leakage at bolted-connections:
(a) The leakage shall be stopped, and the bolting and component material shall be evaluated for joint integrity as described in (c) below.
(b) If the leakage is not stopped, the joint shall be evaluated in accordance with IWB-3142.4 for joint integrity. This evaluation shall include the considerations listed in (c) below.
(c) The evaluation for (a) and (b) above, is to.determine the suseptibility of the bolting to corrosion and failure. This evaluation will, at a
'minimum, consider the following factors:
(1) The number and service age of bolts, (2) Bolt and component material, (3) Corrosiveness of the process fluid, (4) Leakage location.and system function, (5) Leakage history at connection or other system components, and (6) Visual evidence of corrosion at connection (while the connection is assembled).
41 ill 0 a I ~
~ Relief Request No. 12 (continued)
Alternate If the evaluation of the variables above indicates the need for further Testing evaluation, then a bolt closest to the source. of leakage shall be (Continued) removed. The bolt will receive a VT-1 examination and be evaluated and dispositioned in accordance with IWB-3517 of the ASME Code, Section XI. If the removed bolting shows evidence of rejectable degradation, all remaining bolts shall be removed and receive a VT-1 examination in accordance with IWB-3140. If the leakage is identified when the bolted connection is in service and the information in the engineering evaluation is supportive, the removal of the bolt for the VT-1 examination may be deferred until the next refueling outage.
Basis For Pursuant to 10 CFR 50.55a(a)(3)(i), relief is requested on the basis that Relief the proposed alternative would provide an acceptable level of quality and safety. Specifically, PVNGS is asking for relief from the requirement to remove bolts without prior analysis to allow for instances where removal may not be warranted.
Removal of pressure retaining bolting at mechanical connections for visual, VT-3 examination and subsequent evaluation in locations where leakage has been identified is.not always the most prudent course of action to determine the condition of the bolting and root cause of the leak.
The Code requirement to remove, examine and evaluate bolting in this situation does not allow the Owner to consider other factors that may indicate the condition of the mechanical joint bolting. This requirement is unnecessarily prescriptive and restrictive.
Additional A situation frequently encountered at commercial nuclear plants such as Information PVNGS is the complete replacement of bolting materials (studs, bolts, nuts, washers, etc.) at mechanical joints during plant outages. When associated system process piping is pressurized during plant start-up, leakage is sometimes identified at these joints. The root cause of this leakage is most often thermal expansion of the piping and bolting materials at the joint, which results in process fluid seepage at the joint gasket. Proper retorquing of the joint bolting, in most cases, stops the leakage. Removal of any of the joint bolting to evaluate for corrosion would be unwarranted in this situation due to the new condition of the bolting materials.
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Relief Request No. 12,(continued) 1 Approval In accordance with 10 CFR 50.55a(3)(a)(i) PVNGS is requesting 1 permission to use the proposed alternative. PVNGS will not.implement this alternative without prior authorization from the NRC.
References ASME Section XI, Rules for Inspection and Testing of Components of Light Water Cooled Plants 1992 Edition and Addenda, Section IWA-5000.
ASME Section XI, Rules for Inspection and Testing of Components of Light Water Cooled Plants 1989 Edition, Section IWA-5000.
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