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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
[Table view] Category:UTILITY TO NRC
MONTHYEARML17305B0681990-09-17017 September 1990 Forwards Response to Generic Ltr 90-07, Operator Licensing Natl Exam Schedule. Exam Dates,Anticipated Number of Candidates & Requalification Exam Schedules for FY91-FY94 Also Encl ML17305B0491990-09-12012 September 1990 Forwards Palo Verde Nuclear Generating Station Unit 2 Steam Generator Eddy Current Exam,Second Refueling Outage Apr 1990. ML17305B0281990-08-27027 August 1990 Forwards fitness-for-duty Semiannual Performance Rept for Period of Jan-June 1990,per 10CFR26.71(d) ML17305B0111990-08-15015 August 1990 Responds to Request for Addl Info Re Emergency Lighting,Per Insp Repts 50-528/90-25,50-529/90-25 & 50-530/90-25. Availability Info Provided in Ref 2,most Appropriate Analysis of Lighting Sys Availability ML17305B0021990-08-0909 August 1990 Provides Update on Status of Record 546 post-restart Item, Per 900412 Ltr.Record Will Revise Procedures for Analyzing & Disseminating Incident Investigation,Operations & Maint Experience to Appropriate Dept ML17305A9871990-08-0303 August 1990 Forwards Rev 1 to Abb Impell Rept 01-1658-1815, Emergency Lighting Independent Review, Per Insp Repts 50-528/90-25, 50-529/90-25 & 50-530/90-25 ML17305A9791990-07-31031 July 1990 Forwards, Conceptual Design for Palo Verde Nuclear Generating Station for Diverse Auxiliary Feedwater Actuation Sys (Dafas) for Review.Schedule of Implementation as Indicated ML20056A4161990-07-31031 July 1990 Forwards Revised Security Plan Implementing Procedures.Encl Withheld (Ref 10CFR2.790) ML17305A9831990-07-27027 July 1990 Requests Temporary Waiver of Compliance from Limiting Condition for Operation 3.6.3 to Allow Corrective Maint to Be Performed on Main Feedwater Isolation Valves by Extending Allowed Outage Time to 12 H Instead of 4 H ML20055J2671990-07-25025 July 1990 Forwards Info Constituting Decommissioning Financial Assurance Certification Rept,Per 10CFR50.33(k)(2) & 50.75(b) ML17305A9771990-07-25025 July 1990 Forwards Status of Corrective Actions to Min Multiple Control Element Assembly Drop Events at Plant.Insp of Insulation Coils & Replacement of Defective Coils for Units 1 & 2 Completed ML20055J1711990-07-25025 July 1990 Forwards Certification of Decommissioning Financial Assurances for Plant,Per 10CFR50.75(b) & 50.33(k)(2) ML20055J1031990-07-25025 July 1990 Forwards Certification of Decommissioning Financial Assurances ML17305A9411990-07-20020 July 1990 Forwards Response to NRC Bulletin 90-001, Loss of Fill Oil in Transmitters Mfg by Rosemount. ML17305A9431990-07-17017 July 1990 Forwards Rev 1 to Palo Verde Nuclear Generating Station Annual Radiological Environ Operating Rept for 1987. Rev Results from Internal Review Bu Nuclear Safety Group & Audit Performed by Radiation Protection Stds ML17305A9601990-07-13013 July 1990 Forwards Preliminary Response Re Justification for Continued Operation of Fire Protection Sys Equipment,Per Insp Repts 50-528/90-25,50-529/90-25 & 50-530/90-25 ML17305A9331990-07-12012 July 1990 Discusses Util Compliance w/fitness-for-duty Program Implementation.Lab Specialists,Inc Audited & Monitored W/ Satisfactory Results.Ltr of Agreement Has Been in Place Since 900202 ML17305A9391990-07-0909 July 1990 Forwards Endorsement 44 to Maelu Policy MF-116 & Endorsement 62 to Nelia Policy NF-266 ML17305A9341990-07-0909 July 1990 Submits Results of 900514-18 NUREG-1220 Audit,Per NRC 900608 Request,Per Insp of Plant.Remaining Licensed Operators Found to Be in Conformance W/Medical Exam Requirements of 10CFR50.55 ML17305A9151990-06-29029 June 1990 Forwards Emergency Lighting Failure Data Update,Per 900621 Request ML17305A9061990-06-26026 June 1990 Suppls 891114 Response to Violations Noted in Insp Rept 50-528/89-16.Application for Amend to License NPF-41 Will Be Submitted in Oct 1990 to Permit Lower Flow Rate for RCS & Shutdown Cooling Sys ML17305A9111990-06-25025 June 1990 Responds to Generic Ltr 90-04, Status of Implementation of Generic Safety Issues. ML17305A9081990-06-25025 June 1990 Forwards Schedule Reiterating Util Plans for Implementation of USIs A-9 & A-44 & Provides Current Forecast Refuel Dates ML17305A9051990-06-25025 June 1990 Forwards Endorsement 45 to Maelu Policy MF-116 & Endorsement 63 to Nelia Policy NF-266 ML17305A9121990-06-24024 June 1990 Forwards Discharge Test Voltage Curve,Per 900623 Request for Completion of Emergency Lighting Exide Power Supply Prior to Entry Into Mode 2 ML17305A9171990-06-24024 June 1990 Confirms Compliance W/Agreed Upon Course of Action for Restart of Facility as Outlined in 891224 Ltr & Completion of Items Contained in Restart List Provided as Attachment to 900111 Ltr ML17305A8961990-06-20020 June 1990 Responds to NRC 900521 Ltr Re Violations Noted in Insp Repts 50-528/90-12,50-529/90-12 & 50-530/90-12.Corrective Action: Wiring in PPS Cabinets & Cabinet Drawers Reworked in Accordance W/Approved Work Authorization Documents IR 05000528/19900021990-06-19019 June 1990 Describes Current Status & Provides Description of Actions Taken to Ensure Continued High Reliability of Emergency Lighting Sys,Per Insp Repts 50-528/90-02,50-529/90-02 & 50-530/90-02.Emergency Lights Mfg by Emergi-Lite ML17305A9041990-06-19019 June 1990 Describes Current Status & Provides Description of Actions Taken to Ensure Continued High Reliability of Emergency Lighting Sys,Per Insp Repts 50-528/90-02,50-529/90-02 & 50-530/90-02.Emergency Lights Mfg by Emergi-Lite ML17305A8891990-06-15015 June 1990 Informs NRC That post-restart Items Due Prior to Scheduled Restart Have Been Completed on Schedule W/Listed Exceptions ML17305A8871990-06-14014 June 1990 Advises That Fuel Pool Cooling & Cleanup Procedures Being Restructured,Per Response to Violations in Insp Repts 50-528/89-36 & 50-530/89-36 ML17305A8731990-06-0808 June 1990 Responds to Bulletin 88-005 Re Product Forms Other than Fittings & Flanges for Plant.Significant Number of Lugs Delivered to Plant.Util Should Be Notified,If NRC Previous Review of Records Has Identified Other Product Forms ML17305A9421990-06-0101 June 1990 Forwards Pinnacle West Response to State of Az Corp Commission Complaint Filed W/Us Securities & Exchange Commission on 900521,to Revoke Exemption from Public Utils Holding Co Act ML17305A8661990-05-31031 May 1990 Forwards Projected 1990 Cash Flow Statements ML17305A8391990-05-31031 May 1990 Forwards 1990 Reactor Containment Bldg Integrated Leak Rate Test,Final Rept. ML17305A8571990-05-31031 May 1990 Forwards Amended Pages of Feb,Mar & Apr 1990 Monthly Operating Repts for Palo Verde Nuclear Generating Station Unit 2 ML17305A8201990-05-23023 May 1990 Provides Status of Improvements to Eliminate Possibility of Multiple Control Element Assembly Drop Events.Licensee Developed Mod to Ground Fault Detection Sys to Assure Continuous Monitoring & Annunciation of Any Future Faults ML20043B6421990-05-19019 May 1990 Forwards Amend 26 to Security Plan.Amend Withheld (Ref 10CFR2.790(d) & 10CFR73.21) ML17305A7841990-05-15015 May 1990 Forwards Special Rept 2-SR-90-002 Re Steam Generator Tube Plugging Due to Inservice Insp Activities.Twenty Tubes Plugged in Steam Generator 1 & ninety-one Tubes Plugged in Steam Generator 2 ML17305A8721990-05-14014 May 1990 Forwards Arizona Corp Commission Complaint Filed W/Us Securities & Exchange Commission Seeking Revocation or Mod of Exemption of Pinnacle West Capital Corp.Complaint Wholly W/O Merit ML17305A7621990-05-11011 May 1990 Responds to NRC 900413 Ltr Re Violations Noted in Insp Repts 50-528/90-03,50-529/90-03 & 50-530/90-03.Corrective Actions: Night Order Written for Guidance on Use of Instrumentation W/Maint Tag Present ML17305A7921990-05-0808 May 1990 Forwards Public Version of Rev 2 to EPIP-14, Dose Assessment. W/900523 Release Memo ML20043A0511990-05-0303 May 1990 Forwards Public Version of Revised Epips,Including Procedure Change Notice 11 to Rev 12 to EPIP-04 & Procedure Change Notice 1 to Rev 6 to EPIP-15 ML17305A7421990-05-0303 May 1990 Responds to 900330 Enforcement Conference Re Violations Noted in Insp Repts 50-528/90-04,50-529/90-13 & 50-530/90-13.Corrective Action:Special Locking Mechanisms Installed on Currently Posted Radiation Area Doors & Gates ML17305A8861990-04-30030 April 1990 Forwards EPIP Update,Including Rev 7 to EPIP 02,Rev 12 to EPIP 03 & Rev 9 to EPIP 20.W/o Encl ML17305A7381990-04-30030 April 1990 Forwards Annual Environ Operating Rept for 1989 & Annual Rept for Salt Deposition Monitoring Program 1989. ML17305A7131990-04-20020 April 1990 Responds to NRC 900321 Ltr Re Violations Noted in Insp Rept 50-530/90-08.Corrective Action:Plant Guideline Providing Addl Guidance Re Prioritization of Work Promulgated ML17305A6891990-04-16016 April 1990 Forwards Rev to Cycle 3 Reload Analysis Rept,Submitted 891024.Rev Reflects Early end-of-cycle Unit Shutdown & Replacement of Eight New Fuel Assemblies ML17305A7011990-04-12012 April 1990 Forwards Rev 3 to Palo Verde Nuclear Generating Station Post-Restart Actions, Per JB Martin 891224 Ltr ML17305A7081990-04-0909 April 1990 Forwards post-exam Security Agreements for Dk Hendrick, D Ensign,M Alavi & Author.Agreement Certifies That Signatories Will Not Divulge Info Re 900320 Exams 1990-09-17
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ACCELERATED DISTRIBUTION DEMONSTPATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:900 FACIL:STN-50-528 STN-50-529 STN-50-530 AUTH.NAME LEVINE,J.M.
RECIP.NAME MARTIN,J.B.
6290304 DOC.DATE: 90/06/19 NOTARIZED:
NO DOCKET Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTHOR AFFILIATION Arizona Public Service Co.(formerly Arizona Nuclear Power RECIPIENT AFFILIATION Region 5, Ofc of the Director SUBJECT: Describes current status&provides description of actions being taken to assure continued high reliability of ELS.DISTRIBUTION CODE: IE01D COPIES RECEIVED:LTR ENCL SIZE: TITLE: General (50 Dkt)-Insp Rept/Notice of Violation esponse NOTES: Standardized plant.Standardized plant.05000528 05000529 J 05000530 1 RECIPIENT ID CODE/NAME PD5 PD CHAN,T INTERNAL: ACRS AEOD/DEIIB DEDRO NRR SHANKMAN,S NRR/DOEA DIR 11 NRR/DRIS/DIR NRR/PMAS/ILRB12 G F 02 EXTERNAL LPDR NSIC NOTES: COPIES LTTR ENCL 1.1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 RECIPIENT ID CODE/NAME PETERSON,S.
AEOD AEOD/TPAD NRR MORI SSEAU f D NRR/DLPQ/LPEB10 NRR/DREP/PEPB9D NRR/DST/DIR 8E2 NUDOCS-ABSTRACT OGC/HDS1 RGN5 FILE 01 NRC PDR COPIES LTTR ENCL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE!CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL 26 0 Qi I V.
.0 Arizona Public Service Company P.O.BOX 53999~PHOENIX.ARIZONA 85072-3999 REQ>pcpo HRC REQlog y le JlJd 20 PH l2 WILLIAM F.CONWAY EXECUTIVEVICEPAESIDENT NUCLEAR 161-03288-MFC/RAB June 19, 1990 Docket Nos.-STN 50-528/529/530 Mr.John B.Martin Regi'onal Administrator, Region V U.S.Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 walnut Creek, CA 94596-5368 Reference:
Letter from NRC to V.F.Conway, dated April 24, 1990.Subject: NRC Inspection of Palo Verde Units 1, 2 and 3-Inspection Report Nos.50-528, 529, 530/90-02.
Dear Mr.Martin-:
Subject: Palo Verde Nuclear Generating Station (PVNGS)Units 1, 2 and 3 Emergency Lighting File: 90-019-026; 90-056-026 During the past several days, members of our respective staffs have been discussing the status of emergency lighting at Palo Verde.This letter describes the current status and provides, as attachments, a description of actions being taken to assure continued high reliability of the emergency lighting system and an analysis of certain test data reques'ted by your staff,.Emer i-Lite Fixtures In April and May 1989, APS performed'a detailed review of emergency lighting, including a walkdown.As a result of the walkdown, APS decided to install additional emergency lights.Some of these lights are required by 10 CFR 50, Appendix R, and APS management elected'to add the others.The results of the walkdown and the corrective actions are detailed in LER 89-012.APS installed emergency lights manufactured by Emergi-Lite as an interim measure and scheduled the design and installation of Modular Power Stations (MPS)and light fixtures to replace the Emergi-Lites.
The Emergi-Lites offered the advantage of permitting installation in the near term but had the disadvantage of higher maintenance cost.Recognizing these facts, 0 Qi l'
~'r.John B.Martin u.S.Nuclear Regulatory
'Commission Page 2 161-03288-WFC/RAB June 19, 1990 Emergi Lite units were installed in Palo Verde Units 1, 2 6 3, respectively, and tracked as restart items.The Emergi-Lites were tested when installed.
Emergi-Lite components which failed to function adequately
.during these tests were replaced or repaired and each of these lights successfully passed'n acceptance test.The acceptance test required the lights to remain illuminated for at least eight hours with the batteries ,maintaining an electrical potential of at least.21 vol'ts.After successfully passing the acceptance test, the lights were placed in service and a regularly scheduled Preventive Maintenance (PM)program was implemented.
During an NRC inspection, in the the first quarter of 1990, questions arose about the adequacy of the Emergi-Lites, as documented in the referenced letter.,Since then, in response to these NRC questions, APS has: Accelerated the schedule for installation of the permanent emergency lights, (MPS System)to August 1990, and Increased the PM frequency from quarterly to monthly, and Performed special discharge'tests o'f the Emergi-Lites.
Within the past two weeks, APS has conducted discharge tests on 26 of the 48 Emergi-Lites installed in Units 1, 2 and 3.Twenty-three of the 26 fixtures passed the discharge test.The three which did not pass remained illuminated for eight hours, but did not meet acceptance criteria for voltage at the end of the test.The results of these tests demonstrate that the Emergi-Lites are operating reliably.J Li hts Powered from Exide Power Su lies This system, which supplies the control room emergency lighting, is exhibiting reliable performance and the PM program in use is effectively ensuring continued reliability.
Dual-Lite Fixtures These fixtures are located throughout the plant and are exhibiting reliable performance.
However, actions will be taken to enhance the existing PM program.These actions include a pilot program in which the PM frequency will be increased from quarterly to monthly in the Turbine, MSSS, and Diesel Generator buildings in Units 1, 2&3.The program will gather and trend additional battery performance information (i.e., electrolyte level, and room temperature)
over a six-month period.'This'trend information will be used as a basis for evaluating the need for changes to the currently existing PM program for Dual-Lite fixtures.
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Mr.John B.Martin U.S.Nuclear Regulatory Commission Page 3 161-03288-4'FC/RAB June 19, 1990 Li hts Powered from Holo hane Power Su lies Based on a recent engineering calculation, a Material Non-Conformance Report (MNCR)has been issued'egarding certain of these MPSs for ambient temperatures at 50'F., (Units 001 and 003 in Palo Verde Units 1 and 3)..While the MNCR is being resolved, APS has implemented compensatory measures to ensure the operators are able to fulfill their roles in the event of the loss of these lights and to promptly restore essential lighting if it is lost.These measures provide adequate assurance that if a fire occurs prior to resolution of the MNCR the failure or absence of these lights will not adversely affect the ability to achieve safe shutdown.The present PM program ('i.e., monthly maintenance and semiannual discharge tests)will be continued on the existing and modified Holophane systems to ensure continued reliability.
The reliability of this emergency lighting will be increased through implementation of a series of design changes and equipment replacements.
These actions include:~Holophane Units 001 and 003 in Units 1&3 are presently being modified to increase their capacity and reliability.'his work will be completed in Unit 1 prior to entry into Mode 2 in the current startup and is expected to be completed by June 20;1990, in Unit 3.An historical review of Holophane Units 002 and 004 in Units 1 and 3 has been completed to assess the present reliability of these lighting units.The results of this analysis, as described in Attachment 1, demonstrate that these Units are reliable.In addition, the units will be modified to further increase their capacity and reliability.
The schedule for these modifications is contingent on delivery of material, and is currently expected to be completed by the end of September 1990.Holophane Units 001, 002, 003 and 004 in Unit 2 will be modified to increase their capacity and reliability.
Initially, higher capacity batteries will be installed in Units.001, 002, 003 and 004 prior to Mode 2 entry.The replacement of inverters in all four units is expected to be completed by the end of October 1990, contingent on material delivery.APS has also been conducting a detailed review of the Spurious Actuation Analysis.APS has initiated a Corrective Action Report, which has been discussed with your staff, to further evaluate the Spurious Actuation Analysis.We have also implemented compensatory measures, as necessary, for the identified deficiencies.
Attachment 2 summarizes the status and corrective actions to be implemented on Emergency Lighting and was provided to R.Huey, of your staff, on June 15, 1990.
~i.l'
Mr.John B.Martin U.S.Nuclear Regulatory Commission Page 4 161-03288-WFC/RAB June 19, 1990 Based on the information described above, and presented in greater detail to members of your staff during recent inspections APS has concluded that the emergency lighting in Palo Verde Units 1,.2 and 3 wil'1 function as required.If you have any questions,.please call R.A.Bernier at (602)340-4295.
Sincerely,
,WFC/RAB/ca cc: Document Control Desk D.Coe T.L.Chan S'.R.Peterson A.H.Gutterman A.CD Gehr 4i I+I ATTACHMENT
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UNIT 1 AND 3 HOLOPHANE RELIABILITY EVALUATION An evaluation has been performed of the Holophane Modular Power Stations (MPS)QBN-002 and QBN-004 in Units 1 and 3 to assess their ability to provide reliable lighting should they be called upon to do so.'his evaluation was performed by reviewing the condition and present age of the equipment, the results of the most recent eight hour discharge test, and the history of component failures for these MPSs~This evaluation is summarized in this attachment along with a brief description of the equipment and the maintenance program that is currently in place.DESCRIPTION OF HOLOPHANE MODULAR AC POWER STATION The Holophane Power Station is made up of: a charger, eight batteries, an inverter, an automatic transfer switch, and a voltage control disconnect., The MPS is designed to supply power to emergency fluorescent lighting for a minimum of eight hours.The MPS automatically transfers to battery power if facility power is lost and will transfer back to facility power when restored.The MPS consists of eight maintenance
'free Wet Cell or Gel Cell batteries (12 volt), in four sets of two batteries in serie's (24 volts)and a charger which maintains the batteries at a float voltage of 27.6 VDC to 28.2 VDC.The MPS also has an adjustable voltage control disconnect which will disconnect the batteries from the load at approximately 70%.This prevents the batteries from operating in a deep discharge condition.
The current loads and the available capacity for each of the Holophane MPSs is summarized in the table below: UNIT 1 UNIT 3 Load (Watts)MPS Capacity (%)Load MPS (Watts)Capacity (%)QBN-002 QBN-004 700 400 122%135%700 400 119%197%It should be noted that the minimum margin available in these units is 19%.The available capacity was calculated using a conservative inverter efficiency and a conservative temperature derating factor.
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The following table presents the dates when the batteries were last replaced in each of the MPSs and the date of the most recent.eight hour discharge test.Figure 1 presents the results of each of these tests.UNIT 1 Date Batteries Were Last Replaced Date of Last Successful 8 Hour Discharge QBN-002 QBN-004 5-90 5-90 5-90 5-90 UNIT 3 Date Batteries Were Last Replaced Date of Last Successful 8 Hour Discharge QBN-002 QBN-004 5-88 8-88 4-90 2-90 HOLOPHANE PM PROGRAM The Preventive Maintenance (PM)program for the Holophane MPS provides i'nstructions for the inspection, maintenance, and testing of the MPS.There are two PM tasks, a monthly PM task and a 24 week, eight hour discharge PM.The monthly PM tasks are performed to ensure operability of.the MPS.The monthly task consist of the following:
1)Inspect battery for electrolyte leakage.4 2)Inspect battery for corrosion, arcing or other significant degradation.
3)Inspect battery for adequate"no-oxide" grease on terminal and connectors.
4)-Obtain and record battery'bank float voltage, adjustments are made as required to maintain system operability.
5)Obtain and record open-circuit individual battery voltage.6)Obtain and record the interior temperature of the battery cabinet.7)Verify indication lights on front face of cabinet.
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The discharge test PM tasks are performed on a planned 24 week interval to verify the eight hour discharge capability of the MPS.The tasks consist of the following:
1)Inspect battery for electrolyte leakage.2)Inspect battery for corrosion, arcing or other significant degradation.
3)Inspect battery for adequate"no-oxide" grease on terminal and connectors.
4)Obtain and record battery bank float voltage, no adj ustment is allowed without an amendment or work request.5)Perform the eight hour discharge test, recording battery bank terminal voltage every 30 minutes,and verifying that fixtures are illuminated.
6)After completion of the eight hour discharge test, recharge the battery for 24.hours, open circuit the battery for 30 minutes, obtain and record the open circuit individual battery voltage 7)Obtain and record the interior temperature of the battery cabinet.8)Verify indication lights on front face of cabinet.FAILURE DATA REVIEW A total of thirteen component failures occurred in the four MPSs in the period of January 1988 through May 1990.These were reviewed to determine if the specific component failure would have resulted in loss of the capability of the lights to burn for eight hours following the loss of facility power.Of the 13 component failures, four resulted in actual loss of lighting capability.
This data is presented in a time-line for each of the four MPSs (Figure 2).The time-line depicts graphically component failures from January 1988 to May 1990.The time-1'ine also shows whether the indicated component failure would have affected the ability of the MPS to meet its eight hour discharge requirements A summary of each of the failures evaluated is provided in Appendix A.
i CONCLUSXON The Holophane Modular Power Stations QBN-002 and QBN-004 in Units 1 and 3 are operating reli:ably at this time and will operate reliably with adequate margin remaining at the time of their replacement, which is expected, to occur by the end of September 1990, contingent upon material delivery..
The review of these MPSs showed that the equipment is in good condition, given the current age of the batteries, none, of which has been in service longer than 25 months, and successful completion of the most recent discharge tests with adequate margin.The review of the failure d'ata for these four MPSs, from January 1988 to May 1990, showed that four component failures of 13 would have resulted in a failure of the MPS to provide eight hour lighting.
4~'/Ql I DISCHARGE TEST HOLOPHANE MPS I 25 24 23 22 21'0 0 4 TIME 1EQBN002 5/90'EQBN004 5/90~3EQBN002 2/90 3EQBN004 4/90 ACCE P TAN CE CRI TE RIA FIGURE I i'
Figure 2 Unit 1 8c 3 Holophane Component Failure Time-line 1988-1990 LEGEND Arrows above line represent failures which would not have affected power station's ability to perform 8-hour discharge test Arrows below line repesent failures which would have affected power station's ability to perform 8-hour discharge test ig UNlT 1 HOLOPHANE COMPONENT FAILURE TIME-LINE Power Station lE-QBN-002 1988 1989 1990 18f27/Is I/7/88 Power Station 1E-QBN-004 1I/I/89 I/IS/88 Figure 2a
~i i UNlT 3 HOLOPHANE COMPONENT FAILURE TIME-LINE Power Station 3E-QBN-002 1988 1989 1990 Power, Station 3E-QBN-004 5/24/89 5/4/90 2/l6/90 Figure 2b ig APPENDIX A
~>i HOLOPHANE FAILURE EVALUATION UNIT 1 QBN-002 (CONTROL BLDG.)DATE: EVALUATION SUMMARY 1-7-88 Shorted battery, all 8 batteries and charger were replaced.This is a failure of the MPS.Lights would not have, burned 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.12-27-89 One battery was below acceptance voltage.This condition would not have prevented the lights from burning 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.Battery was replaced.3-26-90 One battery had a cracked'ost and 1 battery was below acceptance voltage.This condition would not have prevented the lights from burning 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.Both batteries were replaced.5-14-90'wo good batteries (73 Amp-hr)were repl'aced with 2 96 Amp-hr batteries.
The batteries did not fail..This condition would not have prevented the lights from burning 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
~i.i HOLOPHANE FAILURE EVALUATION UNIT 1 QBN-004 (CONTROL BLDG.)DATE: EVALUATION'UMMARY 1-15-88 Two shorted batteries, the charger and 8 batteries were replaced.This is a failure of the MPS.Lights would not have burned 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.11-1-89 One battery was below acceptance voltage.'This condition.
would not have prevented the lights from burning 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.Battery was repl'aced'.
3-2-90 One battery was below acceptance voltage.Thi:s condition would not have prevented the lights from burning 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.Battery was replaced.
ig-HOLOPHANE FAILURE EVALUATION.UNIT 3'QBN-002 (CONTROL BLDG.)DATE: EVALUATION SUMMARY 9-29-88 Failed display board.'This condition would not have prevented the lights from:burning for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.The display board was replaced..
i i HOLOPHANE FAILURE EVALUATION UNIT 3 QBN-004 (AUX.BLDG.)DATE: EVALUATION SUMMARY*8-29-88 Replaced resistor and transformer on, charging card.Batteries were also replaced.This was a failure of the MPS.Lights would not have burned 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.5-24-89 Loose connection on display card.This condition would not have prevented the lights from burning for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.2-16-90 Failed short circuit detector board.This is a failure of the MPS (short circuit detector board replaced).
Lights would not have burned 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.3-3-90 Cracked battery post.This condition would not have prevented-the lights from burning for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.Battery was replaced.5-4-90 Loose connection on indicating panel.This condition would not have prevented the lights'from burning for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.*This date represents when the failure was corrected in the field (8-29-88).
The Work Order was actually closed and reported (11-21-89)
as reported on the FDT.
iy ATTACHMENT
i 6/15/90 ACTIONS TO ENSURE RELIABLE OPERATION OF THE EMERGENCY LIGHTING AT PVNGS l.Emergency Lighting as provided from Exide power supplies.This system is exhibiting reliable performance and the preventive maintenance program in use is effective to ensure this continued performance.
2.Emergency Lighting as provided from Dual-Lite power supplies.This system is exhibiting reliable performance and actions will be taken to enhance the existing preventive maintenance program.These actions include:~A pilot program which will accelerate PM testing from a quarterly to a monthly basis in the Turbine Building, MSSS Building and Diesel Generator Building for Units 1, 2&3.The program will gather and trend'dditional operating information (i.e., electrolyte level, room temperature)
over a six-month period.This trend information will be used as a basis to evaluate changes to the'existing PM program.3.Emergency Lighting, as provided from Emergi-Lite power supplies.The Emergi-Lites are operating reliably and the accelerated (i.e., monthly)preventive maintenance will be continued.
Additionally, these emergency lights will be replaced in Units 1, 2&3 with a centralized.UPS.The present schedule is to complete this work by the end of August 1990 based on current material delivery schedules.
4.Emergency Lighting as provided from Holophane power supplies.
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The present PM program (i.e., monthly maintenance and'emiannual discharge tests)will be continued on the existing and modified Holophane systems to ensure continued reliability.
These replacements include:~Holophane Units 001 and 003 in Units 1&3 are presently being modified to increase their capacity and reliability.
This work will be completed in Unit 1 prior to Mode 2 in the:current startup and is expected to be completed by June 20, 1990, in Unit 3.Holophane Units 002 and 004 in Units 1 and 3 will be assessed for present reliability by June 16, 1990.In addition, the units will be modified to increase their capacity and.reliability.
This schedule is contingent on delivery of material and is currently expected to be completed by the end of September 1990.Holophane Units 001, 002, 003 and 004 in Unit 2 will be modified to increase their capacity and reliability.
Initially, higher capacity batteries will be installed in these units prior to Mode 2 entry.The replacement of iqyerters in these units is expected to be completed by the end of October 1990, contingent on material delivery.
i'r, P l