Application for Amend to License NPF-29,deleting Several Refs to Operation of Reactor Recirculation Sys in non-loop Manual (Automatic) Mode of Flow ControlML20077E194 |
Person / Time |
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Site: |
Grand Gulf |
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Issue date: |
05/30/1991 |
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From: |
Cottle W ENTERGY OPERATIONS, INC. |
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To: |
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Shared Package |
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ML20077E175 |
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References |
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NUDOCS 9106060214 |
Download: ML20077E194 (6) |
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Category:OPERATING LICENSES-APPLIATION TO AMEND-RENEW EXISTING
MONTHYEARML20217F1951999-10-0707 October 1999 Application for Amend to License NPF-29,to Revise Licensing Basis to Credit One of Insights/Conclusions of NUREG-1465, Revised Source Term Insights ML20211E7061999-08-20020 August 1999 Application for Amend to License NPF-29,incorporating Many of Generic Improvements Agreed Upon Between Industry & NRC Since GGNS Conversion to ITS ML20196K0791999-06-29029 June 1999 Suppl to 980720 Application for Amend to License NPF-29, Implementing BWROG Enhanced Option I-A,reactor Stability long-term Solution.Rev to TS 3.4.1 Inadvertently Omitted from Original Application ML20196G6901999-06-23023 June 1999 Application for Amend to License NPF-29,revising TS Associated with Various Esfss Which Need No Longer Be Credited Following Design Basis Fuel Handling Accident ML20206K5241999-05-0606 May 1999 Application for Amend to License NPF-29,changing TSs Required to Support Ggns,Cycle 11 Operation,Including Slmcpr.Portions of Encl Re Addl Info on Calculated Cycle Specific SL MCPR for Plant Cycle 11 Withheld ML20206R9271999-01-12012 January 1999 Application for Amends to Licenses NPF-29 & NPF-47,proposing Required Actions Consistent with NRC Accepted Change to BWR Improved TS NUREG-1433 & NUREG-1434 ML20236T1551998-07-20020 July 1998 Application for Amend to License NPF-29,revising TSs Re BWROG Enhanced Option I-A Reactor Stability Long Term Solution ML20198J3451998-01-0909 January 1998 Revised Application for Amend to License NPF-29,providing Clarifications to Amend & Adding Restriction to Allowed Interval Extensions Re Option B of 10CFR50,app J ML20198N3851997-10-28028 October 1997 Application for Amend to License NPF-29,revising TS to Implement Option B & Ref SE Issued by NRR for Ggns'S App J Exemption as Implementing Document for performance-based Leakage Testing Program ML20210V5461997-09-18018 September 1997 Application for Amend to License NPF-29,reflecting Decrease of Two Recirculation Loop SLMCPR to 1.11 & Single Recirculation Loop SLMCPR Limit to 1.12.Proprietary Info Re SLMCPR for Cycle 10,encl.Proprietary Info Withheld ML20134E1191996-10-22022 October 1996 Application for Amend to License NPF-29,revising TS Figure 3.4.11-1, Minimum Reactor Vessel Metal Temperature Vs Reactor Vessel Pressure, Curves Using Methodology of Reg Guide 1.99,Rev 2, Radiation Embrittlement.. ML20117P4421996-09-19019 September 1996 Application for Amend to License NPF-29,changing Containment Purge Valves W/Resilient Seals on Performance Based Leakage Testing Frequency ML20117G6661996-08-27027 August 1996 Application for Amend to License NPF-29,modifying Tech Specs Surveillance Requirements for Safety/Relief Valves ML20116F0141996-07-31031 July 1996 Rev 1 to Application for Amend to License NPF-29,revising TSs Required to Support Cycle 9,reload 8.Rev 1 to J11-02863SLMCPR, GGNS Cycle 9 Safety Limit MCPR Analysis Encl.Rept Withheld ML20113B7341996-06-20020 June 1996 Application for Amend to License NPF-29,redefining Secondary Containment Boundary to Allow Encl Bldg to Be Inoperable During Upcoming Refueling Outage ML20112E1741996-05-31031 May 1996 Application for Amends to Licenses NPF-29 & NPF-47 Adding Addl Acceptable Required Actions to Tech Spec Limiting Condition for Operation (LCO) 3.9.1, Refueling Equipment Interlocks ML20117F4541996-05-0909 May 1996 Application for Amend to License NPF-29,modifying SRV Surveillance Test for Relief Mode of Operation ML20117D6901996-05-0909 May 1996 Application for Amend to License NPF-29,revising TSs to Support Unit 1,cycle 9 Including Changes to SLMCPR & Ref for Analytical Methods Used to Determine Core Operating Limits ML20111B2631996-05-0808 May 1996 Application for Amend to License NPF-29,placing Containment Purge Valves W/Resilient Seals on Performance Based Leakage Testing Frequency ML20108E3551996-05-0606 May 1996 Application for Amend to License NPF-29,changing Name from Mississippi Power & Light to Entergy Mississippi,Inc ML20107E2521996-04-18018 April 1996 Application for Amend to License NPF-29,prohibiting Performance of 24-h EDG Maint Run While Unit in Either Mode 1/2 RBG-42766, Application for Amends to Licenses NPF-29 & NPF-47,adding Addl Acceptable Method of Fuel Movement,Control Rods Removed or Withdrawn from Defueled Core Cells1996-04-18018 April 1996 Application for Amends to Licenses NPF-29 & NPF-47,adding Addl Acceptable Method of Fuel Movement,Control Rods Removed or Withdrawn from Defueled Core Cells ML20100J8311996-02-22022 February 1996 Application for Amend to License NPF-29,modifying Safety Setpoint to Tolerance Requirements for Safety/Relief Valves ML20097C3491996-02-0101 February 1996 Application for Amend to License NPF-29,revising TS Bases to Include Changes Since 950221 Approval of TS Bases RBG-42193, Rev to Application for Amend to License NPF-29 & Proposed Amend to License NPF-47,revising TS 3/4.6.2.2, Drywell Bypass Leakage1995-11-20020 November 1995 Rev to Application for Amend to License NPF-29 & Proposed Amend to License NPF-47,revising TS 3/4.6.2.2, Drywell Bypass Leakage ML20087B5031995-08-0101 August 1995 Application for Amend to License NPF-29,by Revising TS Assoc W/Various ESF Sys Following Design Fuel Handling Accident ML20086N2071995-07-21021 July 1995 Application for Amend to License NPF-29,proposing to Recapture Approx 2 1/2 Yrs of Low/No Power Operation by Extending 40-yr Operating License Term from 220616 to 241101 ML20078S4891995-02-14014 February 1995 Application for Amend to License NPF-29 Consisting of Changes to TS Requirements 4.4.1.4.a.1 & 4.6.1.4.a.2 ML20078N6481995-02-10010 February 1995 Application for Amend to License NPF-29,consisting of Mod to Proposed Amend to OL (PCOL-93/13),requesting to Perform Drywell Bypass Leakage Rate Surveillance on Performance Based Interval ML20079B4431994-11-0909 November 1994 Application for Amend to License NPF-29,revising TS Associated W/Various ESF Sys Following Design Basis Fuel Handling accident.Mark-up of Current Ts,Proposed TS & mark- Up Improved TS Encl ML20076F9781994-10-12012 October 1994 Application for Amend to License NPF-29,consisting of PCOL-94/01,closing & Deleting License Condition 2.C.(26) for Turbine Disc integrity.Mark-up of Affected OL Page & Proprietary Supporting Info Encl.Proprietary Info Withheld ML20069P4401994-06-17017 June 1994 Proposed Amend to OL (PCOL-94/02),removing License Conditions for EDGs Associated w/NUREG-1216 ML20059H6011994-01-13013 January 1994 Application for Amend to License NPF-29,consisting of Proposed Amend to OL PCOL-93/15,removing 2,324 Spent Fuel Pool Storage Limit & Allowing Full Use of Spent Fuel Storage Spaces ML20059A4801993-10-22022 October 1993 Application for Amend to License NPF-29,modifying Testing Frequencies for Drywell Bypass Test & Airlock Tests ML20059B0131993-10-15015 October 1993 Application for Amend to License NPF-29,converting Current GGNS TS to TS Based Largely on NUREG-1434,Rev 0 ML20056E2861993-08-17017 August 1993 Application for Amend to License NPF-29,proposing Changes to Amend TS Section 3/4.3.7.10, Loose Part Detection Sys by Relocating Loose Part Detection Instrumentation to Administrative Controls ML20056D5321993-08-11011 August 1993 Proposed Change to OL (PCOL-93/09) to License NPF-29, Amending TS Section 3/4.3.7.5 by Relocating Certain Accident Monitoring Instrumentation from TS to Administrative Control,Per NUREG-1434,Rev 0,w/respect to RG 1.97 ML20046D2041993-08-11011 August 1993 Proposed Change to OL (PCOL-93/07) to License NPF-29, Amending TS Section 3/4.3.7.10, Loose Part Detection Sys by Relocating Locating Loose Part Detection Instrumentation from TS to Administrative Controls,Per NUREG-1434,Rev 0 ML20046D1911993-08-11011 August 1993 Proposed Change to OL (PCOL-93/06) to License NPF-29, Revising TS to Support Compliance W/New Requirements of 10CFR20 & 10CFR50.36a ML20056C7131993-07-15015 July 1993 Application for Amend to License NPF-29,proposing Changes to Remove Operability Requirements for auto-test Feature of Load Shedding & Sequencing Sys & Increase AOT for Inoperable Load Shedding & Sequencing Sys from Eight to Twelve Hours ML20045H7111993-07-14014 July 1993 Application for Amend to License NPF-29,changing TS to Eliminate Previous Retrictions on Ensuring Operability of Igniters in Encl Areas & Igniters in Open Areas Adjacent to Inoperable Igniters & Redefining Hydrogen Ignition Sys ML20044F1571993-05-20020 May 1993 Proposed Amend PCOL-93/04 to License NPF-29,revising TS 4.8.3.1.2 & 4.8.3.2.2 to Remove Operability Requirements for auto-test Feature of Load Shedding & Sequencing (LSS) Sys & Increase AOT for Inoperable LSS Sys from Eight to 24 H ML20044F1621993-05-20020 May 1993 Proposed Amend PCOL-92/09 to License NPF-29,removing Unnecessary Operability Requirements for IRMs & APRMs During Plant Shutdown Conditions.Ts Changes Follow NUREG-1434, Rev 0 Requirements ML20116D1391992-10-29029 October 1992 Application for Amend to License NPF-29,consisting of Proposed Change,Revising TS Per Generic Ltr 88-16, Removal of Cycle Specific Parameter Limits from TS, That Will Change Each Fuel Cycle ML20118A5681992-09-14014 September 1992 Application for Amend to License NPF-29,deleting TS Tables 3.6.4-1 Re Containment & Drywell Isolation Valves, 3.6.6.2-1 Re Secondary Containment Ventilation Sys & 3.8.4.2-1 Re MOV Thermal Overload Protection,Per GL 91-08 ML20113H6001992-07-29029 July 1992 Application for Amend to License NPF-29,consisting of PCOL-92/03,changing Selected TS Instrumentation Surveillance Test Intervals & Allowed Outage Times,Based on Cited GE Repts ML20101B6681992-05-29029 May 1992 Application for Amend to License NPF-29,changing TS Bases 3/4.9.7, Crane Travel - Spent Fuel & Upper Containment Fuel Storage Pools ML20096B8861992-05-0606 May 1992 Application for Amend to License NPF-29,changing TS Re Primary Containment Penetration Conductor Overcurrent Protective Devices,Under Exigent Circumstances,Per Generic Ltr 89-10 ML20095K0351992-04-30030 April 1992 Application for Amend to License NPF-29,changing TS 3/4.3.1 Re Reactor Protection Sys instrumentation,3/4.3.6 Re Control Rod Block Instrumentation & 3/4.3.7.6 Re Source Range Monitors,Per Violations in Insp Rept 50-416/92-04 ML20095E7341992-04-22022 April 1992 Suppl to 910626 Application for Amend to License NPF-29, Modifying Wording of Requested Change to LCO 3.3.2,Action B Re Extension of Instrumentation Surveillance Intervals & Allowed Outage Times 1999-08-20
[Table view] Category:TEXT-LICENSE APPLICATIONS & PERMITS
MONTHYEARML20217F1951999-10-0707 October 1999 Application for Amend to License NPF-29,to Revise Licensing Basis to Credit One of Insights/Conclusions of NUREG-1465, Revised Source Term Insights ML20211E7061999-08-20020 August 1999 Application for Amend to License NPF-29,incorporating Many of Generic Improvements Agreed Upon Between Industry & NRC Since GGNS Conversion to ITS ML20196K0791999-06-29029 June 1999 Suppl to 980720 Application for Amend to License NPF-29, Implementing BWROG Enhanced Option I-A,reactor Stability long-term Solution.Rev to TS 3.4.1 Inadvertently Omitted from Original Application ML20196G6901999-06-23023 June 1999 Application for Amend to License NPF-29,revising TS Associated with Various Esfss Which Need No Longer Be Credited Following Design Basis Fuel Handling Accident ML20206K5241999-05-0606 May 1999 Application for Amend to License NPF-29,changing TSs Required to Support Ggns,Cycle 11 Operation,Including Slmcpr.Portions of Encl Re Addl Info on Calculated Cycle Specific SL MCPR for Plant Cycle 11 Withheld ML20206R9271999-01-12012 January 1999 Application for Amends to Licenses NPF-29 & NPF-47,proposing Required Actions Consistent with NRC Accepted Change to BWR Improved TS NUREG-1433 & NUREG-1434 ML20236T1551998-07-20020 July 1998 Application for Amend to License NPF-29,revising TSs Re BWROG Enhanced Option I-A Reactor Stability Long Term Solution ML20217P0241998-04-0606 April 1998 Amend 135 to License NPF-29,revising TSs for GGNS to Permit Implementation of Containment Leak Rate Testing Provisions of 10CFR50,App J,Option B ML20198J3451998-01-0909 January 1998 Revised Application for Amend to License NPF-29,providing Clarifications to Amend & Adding Restriction to Allowed Interval Extensions Re Option B of 10CFR50,app J ML20198N3851997-10-28028 October 1997 Application for Amend to License NPF-29,revising TS to Implement Option B & Ref SE Issued by NRR for Ggns'S App J Exemption as Implementing Document for performance-based Leakage Testing Program ML20210V5461997-09-18018 September 1997 Application for Amend to License NPF-29,reflecting Decrease of Two Recirculation Loop SLMCPR to 1.11 & Single Recirculation Loop SLMCPR Limit to 1.12.Proprietary Info Re SLMCPR for Cycle 10,encl.Proprietary Info Withheld ML20134E1191996-10-22022 October 1996 Application for Amend to License NPF-29,revising TS Figure 3.4.11-1, Minimum Reactor Vessel Metal Temperature Vs Reactor Vessel Pressure, Curves Using Methodology of Reg Guide 1.99,Rev 2, Radiation Embrittlement.. ML20117P4421996-09-19019 September 1996 Application for Amend to License NPF-29,changing Containment Purge Valves W/Resilient Seals on Performance Based Leakage Testing Frequency ML20117G6661996-08-27027 August 1996 Application for Amend to License NPF-29,modifying Tech Specs Surveillance Requirements for Safety/Relief Valves ML20116F0141996-07-31031 July 1996 Rev 1 to Application for Amend to License NPF-29,revising TSs Required to Support Cycle 9,reload 8.Rev 1 to J11-02863SLMCPR, GGNS Cycle 9 Safety Limit MCPR Analysis Encl.Rept Withheld ML20113B7341996-06-20020 June 1996 Application for Amend to License NPF-29,redefining Secondary Containment Boundary to Allow Encl Bldg to Be Inoperable During Upcoming Refueling Outage ML20112E1741996-05-31031 May 1996 Application for Amends to Licenses NPF-29 & NPF-47 Adding Addl Acceptable Required Actions to Tech Spec Limiting Condition for Operation (LCO) 3.9.1, Refueling Equipment Interlocks ML20117D6901996-05-0909 May 1996 Application for Amend to License NPF-29,revising TSs to Support Unit 1,cycle 9 Including Changes to SLMCPR & Ref for Analytical Methods Used to Determine Core Operating Limits ML20117F4541996-05-0909 May 1996 Application for Amend to License NPF-29,modifying SRV Surveillance Test for Relief Mode of Operation ML20111B2631996-05-0808 May 1996 Application for Amend to License NPF-29,placing Containment Purge Valves W/Resilient Seals on Performance Based Leakage Testing Frequency ML20108E3551996-05-0606 May 1996 Application for Amend to License NPF-29,changing Name from Mississippi Power & Light to Entergy Mississippi,Inc ML20107E2521996-04-18018 April 1996 Application for Amend to License NPF-29,prohibiting Performance of 24-h EDG Maint Run While Unit in Either Mode 1/2 RBG-42766, Application for Amends to Licenses NPF-29 & NPF-47,adding Addl Acceptable Method of Fuel Movement,Control Rods Removed or Withdrawn from Defueled Core Cells1996-04-18018 April 1996 Application for Amends to Licenses NPF-29 & NPF-47,adding Addl Acceptable Method of Fuel Movement,Control Rods Removed or Withdrawn from Defueled Core Cells ML20100J8311996-02-22022 February 1996 Application for Amend to License NPF-29,modifying Safety Setpoint to Tolerance Requirements for Safety/Relief Valves ML20097C3491996-02-0101 February 1996 Application for Amend to License NPF-29,revising TS Bases to Include Changes Since 950221 Approval of TS Bases RBG-42193, Rev to Application for Amend to License NPF-29 & Proposed Amend to License NPF-47,revising TS 3/4.6.2.2, Drywell Bypass Leakage1995-11-20020 November 1995 Rev to Application for Amend to License NPF-29 & Proposed Amend to License NPF-47,revising TS 3/4.6.2.2, Drywell Bypass Leakage ML20087B5031995-08-0101 August 1995 Application for Amend to License NPF-29,by Revising TS Assoc W/Various ESF Sys Following Design Fuel Handling Accident ML20086N2071995-07-21021 July 1995 Application for Amend to License NPF-29,proposing to Recapture Approx 2 1/2 Yrs of Low/No Power Operation by Extending 40-yr Operating License Term from 220616 to 241101 ML20078S4891995-02-14014 February 1995 Application for Amend to License NPF-29 Consisting of Changes to TS Requirements 4.4.1.4.a.1 & 4.6.1.4.a.2 ML20078N6481995-02-10010 February 1995 Application for Amend to License NPF-29,consisting of Mod to Proposed Amend to OL (PCOL-93/13),requesting to Perform Drywell Bypass Leakage Rate Surveillance on Performance Based Interval ML20079B4431994-11-0909 November 1994 Application for Amend to License NPF-29,revising TS Associated W/Various ESF Sys Following Design Basis Fuel Handling accident.Mark-up of Current Ts,Proposed TS & mark- Up Improved TS Encl ML20076F9781994-10-12012 October 1994 Application for Amend to License NPF-29,consisting of PCOL-94/01,closing & Deleting License Condition 2.C.(26) for Turbine Disc integrity.Mark-up of Affected OL Page & Proprietary Supporting Info Encl.Proprietary Info Withheld ML20069P4401994-06-17017 June 1994 Proposed Amend to OL (PCOL-94/02),removing License Conditions for EDGs Associated w/NUREG-1216 ML20059H6011994-01-13013 January 1994 Application for Amend to License NPF-29,consisting of Proposed Amend to OL PCOL-93/15,removing 2,324 Spent Fuel Pool Storage Limit & Allowing Full Use of Spent Fuel Storage Spaces ML20059A4801993-10-22022 October 1993 Application for Amend to License NPF-29,modifying Testing Frequencies for Drywell Bypass Test & Airlock Tests ML20059B0131993-10-15015 October 1993 Application for Amend to License NPF-29,converting Current GGNS TS to TS Based Largely on NUREG-1434,Rev 0 ML20056E2861993-08-17017 August 1993 Application for Amend to License NPF-29,proposing Changes to Amend TS Section 3/4.3.7.10, Loose Part Detection Sys by Relocating Loose Part Detection Instrumentation to Administrative Controls ML20046D2041993-08-11011 August 1993 Proposed Change to OL (PCOL-93/07) to License NPF-29, Amending TS Section 3/4.3.7.10, Loose Part Detection Sys by Relocating Locating Loose Part Detection Instrumentation from TS to Administrative Controls,Per NUREG-1434,Rev 0 ML20046D1911993-08-11011 August 1993 Proposed Change to OL (PCOL-93/06) to License NPF-29, Revising TS to Support Compliance W/New Requirements of 10CFR20 & 10CFR50.36a ML20056D5321993-08-11011 August 1993 Proposed Change to OL (PCOL-93/09) to License NPF-29, Amending TS Section 3/4.3.7.5 by Relocating Certain Accident Monitoring Instrumentation from TS to Administrative Control,Per NUREG-1434,Rev 0,w/respect to RG 1.97 ML20056C7131993-07-15015 July 1993 Application for Amend to License NPF-29,proposing Changes to Remove Operability Requirements for auto-test Feature of Load Shedding & Sequencing Sys & Increase AOT for Inoperable Load Shedding & Sequencing Sys from Eight to Twelve Hours ML20045H7111993-07-14014 July 1993 Application for Amend to License NPF-29,changing TS to Eliminate Previous Retrictions on Ensuring Operability of Igniters in Encl Areas & Igniters in Open Areas Adjacent to Inoperable Igniters & Redefining Hydrogen Ignition Sys ML20044F1571993-05-20020 May 1993 Proposed Amend PCOL-93/04 to License NPF-29,revising TS 4.8.3.1.2 & 4.8.3.2.2 to Remove Operability Requirements for auto-test Feature of Load Shedding & Sequencing (LSS) Sys & Increase AOT for Inoperable LSS Sys from Eight to 24 H ML20044F1621993-05-20020 May 1993 Proposed Amend PCOL-92/09 to License NPF-29,removing Unnecessary Operability Requirements for IRMs & APRMs During Plant Shutdown Conditions.Ts Changes Follow NUREG-1434, Rev 0 Requirements ML20116D1391992-10-29029 October 1992 Application for Amend to License NPF-29,consisting of Proposed Change,Revising TS Per Generic Ltr 88-16, Removal of Cycle Specific Parameter Limits from TS, That Will Change Each Fuel Cycle ML20118A5681992-09-14014 September 1992 Application for Amend to License NPF-29,deleting TS Tables 3.6.4-1 Re Containment & Drywell Isolation Valves, 3.6.6.2-1 Re Secondary Containment Ventilation Sys & 3.8.4.2-1 Re MOV Thermal Overload Protection,Per GL 91-08 ML20113H6001992-07-29029 July 1992 Application for Amend to License NPF-29,consisting of PCOL-92/03,changing Selected TS Instrumentation Surveillance Test Intervals & Allowed Outage Times,Based on Cited GE Repts ML20101B6681992-05-29029 May 1992 Application for Amend to License NPF-29,changing TS Bases 3/4.9.7, Crane Travel - Spent Fuel & Upper Containment Fuel Storage Pools ML20096B8861992-05-0606 May 1992 Application for Amend to License NPF-29,changing TS Re Primary Containment Penetration Conductor Overcurrent Protective Devices,Under Exigent Circumstances,Per Generic Ltr 89-10 ML20095K0351992-04-30030 April 1992 Application for Amend to License NPF-29,changing TS 3/4.3.1 Re Reactor Protection Sys instrumentation,3/4.3.6 Re Control Rod Block Instrumentation & 3/4.3.7.6 Re Source Range Monitors,Per Violations in Insp Rept 50-416/92-04 1999-08-20
[Table view] |
Text
. . .
1 BEFORE Tile UNITED STATES NUCLEAR REGULATORY COMMISSION LICENSE NO. NPF-29 110CKET NO. 50-416 IN Tile MATTER OF MISSISSIPPI POWER & LIGitT COMPANY and SYSTEM ENERGY RESOURCES, INC.
and SOUTil MISSISSIPPI ELECrRIC POWER ASSOCI ATION and ENTERGY OPERATIONS, INC.
AFFIRMATION I, W. T. Cottle, being duly sworn, state that I am Vice President, >
Operations GGNS of Entergy Operations, Inc.; that on behalf of Entergy Operations, Inc. , System Energy Resources , Inc., and South Mississippi Electric Power Association I am authorized by Entergy Operations, Inc. to sign and file with the Nuclear Regulatory Commission, this application for amendment of the Operating License of the Grand Gulf Nuclear Station; that I signed this application as Vice President,tOperations-GGNS of Entergy Operations, Inc.; and that the statements made and the matters l set forth therein are true and correct to the best of.my knowledge, information and belief.
w F C-W.'T. Cottle STATE OF MISSISSIPPI l COUNTY OF CLAIBORNE SUBSCRIBED AND SWORN TO befor me, a Notary Public, in and for the County and State above named, this- -day of TT C , 1991, d
(SEAL) crbMa bnbnn% ~
Notary p>l Mg'commissionexpires:
25mh*n h;tet Lty I, Igg}
G9104171/SNLICFLR - 4 9106060214 910530 PDR- ADOCK 05000416 P PDR
4 Attachment 2 to GNRO-91/00071 Page 1
+
A. SUBJECT
- 1. NPE-90/02 Removal of References to the Non-1.oop Manual Flow Control Mode of the Reactor Recirculation System
- 2. Affected Technical Specifications:
4
- a. Figure 3.2.3-1, HCPR , Page 3/4 2-5 7
- b. Figure 3.2.4-2, LUGRFAC , Page 3/4 2-7b f
q c. LCO 3.4.1.1.b.2, " age 3/4 4-1
- d. Action Statement 3.4.1.1.g, Pagn 3/4 4-la
! c. Surveillance Requirement 4.4.1.1.3, Page 3/4 4-la
- f. Bases 3/4.2.3~ ' ages B 3/4 2-4, 2-4a, and 2-6 4
- g. Bases 3/4.2.4, Page 3/4 2-7 E
- h. Bases 3/4.4.1, Page B 3/4 4-1 B. DISCUSSION i 1. Entergy Operations, Inc. is requesting revisions to the Technical Specifications (TS) and Bases which make reference to
- or infer operation of the Reactor Recirculation System in the Non-Loop Manual mode of flow control. This mode of operation -
has been permanently disabled by a control circuit design change implemented during the fourth refueling outage.-
.2. Prior to the design change, the reactor recirculation flow control system was capable of controlling the two loop flow-control valves either individually in Loop Hanual (manual)~
control or in unison via Non-Loop Manual (automatic) flow control. The automatic mode was comprised of~ circuitry which adjusted total core flow via simultaneous signals to both-valves. This maintained either an established turbine-generator demand, a desired reactor neutron flux level, or a set total recirculation drive flow, depending upon operator preference. :
The Non-Loop Hanual mode was removed by permanently installing wiring which prevents transferring the flow control system out
-of the Loop Manual mode under any circumstances.
, 3. This design modification was made because it was determined that operation in the automatic flow control mode, while originally intended for operational flexibility, provided little or no benefit compared to manual operation. In fact, having the-capability to employ Non-Loop Manual flow control resulted in several inconvenient and costly requirements being placed on plant operation and maintenance. It was also=necessary to perform additional plant transient analyses specifically addressing. this mode for. each reload.
G9104171/SNLICFLR --5
, 1 l Attachment 2 to GNRO-91/00071 Page 2 4
3 4. ' Marked-up TS:and Bases pages ret'lecting the desired changes are 4
attached.
- 5. A minor editorial change is also being made to Bases Page B-3/4 2-7a. This change deletes the continuation heading atop the page to correct an editorial error made in Amendment No. 73 to NPF-29.
C. JUSTIFICATION
- 1. The Non-Loop Manual flow control mode of the Reactor
- Recirculation System was' permanently disabled during the fourth l refueling outage in order to accommodate the plant operating ,
staff's preference for system operation exclusively in the Loop i Manual mode. A number of reasons were identified for this prefererne, including compatibility with core monitoring software, reduction in I&C maintenance and calibration efforts, and increased operating margin thermal limits gained through less restrictive reload licensing analyses.-
4 A design change was implemented to accomplish the required .
circuit modifications. Prior to installation, this. design change was reviewed against the critoria of 10CFR50.59 and determined not to be an unreviewed safety question. It-was also determined that a TS revision was not required prior to making the change since no operating conditions or actions in the TS require that the system be placed into: the Non-Loop Manual J
mode.
- 2. In the determination of the. Cycle 5 thermal limits for. Linear j
llent Generation Rate (LilGR) and Minimum Critical Power Ratio (MCPR), analyses were performed for both Loop Manual and
] Non-Loop Manual operation. TS Figures 3.2.3-1 (MCPR,).and i 3.2.4-2 (LilGRFAC,) nach contain curves reflecting both modes.
The curves in ca6h TS Figure for Non-Loop Manual mode are<being deleted by this change. These curves'aro not required since this mode of flow control is no longer possible.: .This change in-no way affects the basis or availability of:the correct thermal:
operating limit information. In fact, deletion of.the curves'
] reduces the possibility of unintentional- use of an incorrect -
curve, as well as removing superfluous, unnecessary-information.
Additionally, Non-Loop Manual operation after Cycle 5,will.not be supported by reload analyses and the curves. cited above will likely be inaccurate.
- 3. The Bases discussions oflthe above thermal operating-limits curves (Dases 3/4.2.3 and 3/4,2.4) are also'being modified toi
. reflect the disabling of.the Non-Loop Manual mode. This is necessary to ensure that the description of Lthe derivation and .,
basis of those curves is-accurate and~ complete.
'09104171/SNLICFLR - 6
I Attachment 2 to GNRO-91/00071 )
Page 3
- 4. TS 3.4.1.1.b.2 requires t hat single recirculntion loop operation be conducted in thn Loop Manual flow control mode only. In addition, Action g of TS 3.4.1.1 states 7 the steps to be taken in the event flow control is determined not to bo in the manual mode, and Surveillanco Requirement 4.4.1.-l.3 apecifies the criteria for determining that flow control .in.the operating loop l
, is in manual. This change will delete these portions of j TS 3.4.1.1. ,
4 The design modification discussed in C.1 above permanently
- disabled the Non-Loop Manual mode of flow control. This was i done by installing wiring which. electrically prevents transferring out of the manual mode with the controls availablo to the operator. Intentional or inadvertent operation in the aut.omatic modo is thus not credible without physical hardware changes to the control circuitry.
i Since it is now not physically possible to operate in other than t.he manual modo, stipulations requiring Loop Manuni flow control while in singin recirculation loop operation are no longer
] necessary. This is also true of the surveillanco-verifying manual flow control. This change does not affect the validity of the analyses supporting single loop operation, or in any way relax the requirements which must be met in order to operate-
! with one recirculation loop out of service.
- 5. Dasns 3/4.4.1 must also be revised to reficct the above changes. .
This is necessary to ensuro that the description of the analysis of single recirculation loop operation is accurato and complete.-
- 6. There are currently no TS which requiro or rely on operation of the Reactor Recirculation System exclusively in the Non-Loop Manual modo. The ability to operate in this modo is not needed_
to ensure that the assumptions of'any applicable safety analyses s remain valid. The changes requested are intended only to 4
onhanco the clarity and accuracy of the affected Specifications
- - -and Bases by deleting references to automatic flow control which ;
may prove confusing or misleading now that this, modo is .no longer availabin. Thus, thosn changes are considered to be administrative.
- D. NO SIGNIFICANT HAZARDS CONSIDERATION-
- 1. Entergy Operations, Inc, is proposing.that TS 3.2.3, 3.2.4 and-
-3/4.4.1.1.be revised to reflect administrativo. changes-caused by3 the climination of the Non-Loop Manual flow control mode' of the -
Reactor Recirculation System. _Those revisions. remove references to the Non-Loop Manual flow control mode which state or imply
- that this -modo is available for use.
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' Attachment 2 to GNRO-91/00071 Page 4 9
- 2. The Commission has provided standards for determining whether a no significant hazards consideration exists as stated in' .
10CFR50.92(c). A proposed amendment to an operating license involves no significant hazards if operation of the facility in accordance with the proposed amendment would not: (1) involve a significant. increase in the probability or consequences of an accident previously evaluated; or (2) create the possibility of-a new or different kind of accident from any accident previously evaluated; or (3) involve a significant reduction in a margin of safety.
- 3. GGNS has evaluated the no significant hazards considerations in its request for a license amendment. In accordance with 10CFR50.91(a), GGNS is providing the following analysis of the proposed amendment against-the three standards in 10CFR50.92.
The hardware modifications made to the flow control circuitry have also been evaluated separat ely and found acceptable as part of the GGNS design change process per the provisions of 10CFR50.59
- a. No significant increase in the probability or consequenc(s of an accident previously evaluated results from this change.
4 The Non-Loop Manual mode of operation has been permanently removed and it is no longer possible to operate the Reactor Recirculation System in automatic flow control. Thus, only those plant transient safety analyses which assume manual.
- recirculation flow control prior to and during Reactor Recirculation Flow Controller Failure events now apply. The proposed TS changes simply remove references to the use of the automatic flow control modo throughout the TS. The proposed changes in no way increase the. likelihood of a Flow Controller Failure event necurring or make the results of the event analyses more severe. Continuous operation in the hoop Manual mode only may actually. decrease the probability and consequences of the_ analyzed events. This-is due~to less active equipment involved in-the manual modo, as well as only one recirculation loop being_ postulated to fall-Instead of two as when operating in t'.ie Non-Loop Hanual mode. The changes are administrative in nature since th~ey-
, are only removing'information and requirements that are no longer consistent with plant design.
Thus, the probability or consequences of previously analyzed accidents are not increased.
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09104171/SNLICFLR - 8
Attachment 2 to GNRO-91/00071 Page 5
- b. The change would not create the possluility of a new or different kind of accident from any previously analyzed.
Both the Loop Manual and Non-Loop Manual modes of operation ,
have been previously analyzed / evaluated and approved. The proposed changes make the TS consistent with. current plant design,-and no .>.ew operating or failure modes.are created.
The scope of these TS changes is strictly limited to removal f of extraneous rei!rences to automatic Reactor Recirculation System flow control, which is no longer available. There are no new or different surveillance tests or actions required by the revisions. No TS requirements associated.
with operation in the manual flow control mode are affected, and there is no change in the degree of-protection currently af forded by existing surveillances. There is also no addition, deletion, or modification of any Class IE component or circuit involved.
Therefore, the proposed charigo does not create the possibility of a new or different kind of accident from those previously analyzed.
- c. The change would not involve a significant reduction in the margin of safoty.
s Both hoop Manual and Non-Loop Hanual modes of flow control have been separately evaluated and approved. No assumptions, methods, or results of applicable safety analyses are changed. The proposed changes do not alter the margin of safety currently realized by implementation of the existing TS for operation in the Loop Manual mode of flow control. Since cperation in-automatic flow control is no-longer possible, there are no margins of safety related to this mode of operation which must be implemented by the TS.
Removal of references to the Non-Loop Manual mode only makes the TS consistent with plant design and avoids potential confusion.
These changes thus do_not involve a significant reduction in the margin of safety.
- 4. Based on the above evaluation, Entergy Operations has concluded that operation in accordance with the proposed amendment-Involves no significant hazards considerations.
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