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Category:CORRESPONDENCE-LETTERS
MONTHYEARML20217P6171999-10-21021 October 1999 Forwards non-proprietary & Proprietary Versions of HI-982083, Licensing Rept for Byron & Braidwood Nuclear Stations. Proprietary Rept Withheld,Per 10CFR2.790(b)(4) ML20217M4361999-10-19019 October 1999 Forwards Rev 46 to Braidwood Station Security Plan, IAW 10CFR50.4(b)(4).Description of Changes,Listed.Encl Withheld Per 10CFR73.21 ML20217H4661999-10-18018 October 1999 Forwards Changes to EPIPs IAW 10CFR50.54(q) & 10CFR50,App E, Section V.Details of Changes Encl ML20217G9791999-10-14014 October 1999 Forwards SE Accepting Relief Requests to Rev 5 of First 10-year Interval Inservice Insp Program for Plant,Units 1 & 2 ML20216J8241999-09-30030 September 1999 Notifies of Removal of NRC Headquarters & Region III Offices from Controlled Copy Distribution of Certain CE Documents. Specific Documents,Associated Controlled Copy Numbers & NRC Location Affected Are Shown on Attachment to Ltr ML20217A9311999-09-29029 September 1999 Informs That NRC 6-month Review of Braidwood Identified That Performance in Maint Area Warranted Increased NRC Attention. Addl Insps Beyond Core Insp Program Will Be Conducted Over Next 6 Months to Better Understand Causes of Problem ML20216H4301999-09-23023 September 1999 Informs That Arrangements Made for Administration of Licensing re-take Exams at Braidwood Generating Station for Week of 991108 ML20216F7441999-09-17017 September 1999 Forwards Insp Repts 50-456/99-13 & 50-457/99-13 on 990706-0824.Three Violations Noted & Being Treated as Ncvs. Insp Focused on C/As & Activities Addressing Technical Concerns Identified During Design Insp Completed on 980424 ML20212A6991999-09-10010 September 1999 Forwards SE Accepting Licensee Second 10-year Interval ISI Program Request for Relief 12R-07 for Plant,Units 1 & 2 ML20211Q9011999-09-0808 September 1999 Advises That Us Postal Service Mailing Address Has Changed for Braidwood Station.New Address Listed ML20211Q6611999-09-0606 September 1999 Informs That NRC Tentatively Scheduled Initial Licensing Exam for Braidwood Operator License Applicants During Wk of 010115 & 22.Validation of Exam Will Occur at Station During Wk of 001218 ML20211P1901999-09-0303 September 1999 Forwards Insp Repts 50-456/99-12 & 50-457/99-12 on 990707-0816.No Violations Noted.Insp Generally Characterized by safety-conscious Operations,Sound Engineering & Maint Practices & Careful Radiological Work Controls ML20211P1761999-09-0202 September 1999 Discusses Licensee Aug 1998 Rev 3K to Portions of Braidwood Nuclear Power Station Generating Stations Emergency Plan Site Annex Submitted Under Provisions of 10CFR50.54(q). NRC Approval Not Required ML20211K1081999-09-0202 September 1999 Responds to Request for Addl Info to GL 92-01,Rev 1,Suppl 1, Reactor Vessel Structural Integrity, for Braidwood,Units 1 & 2 & Byron,Unit 2 ML20211G1221999-08-27027 August 1999 Forwards fitness-for-duty Program Performance Data for Each of Comm Ed Nuclear Power Stations & Corporate Support Employees within Scope of Rule for six-month Period Ending 990630,IAW 10CFR26.71(d) ML20211B8691999-08-20020 August 1999 Forwards Insp Repts 50-254/99-10,50-265/99-10,50-454/99-09, 50-455/99-09,50-456/99-10 & 50-457/99-10 on 990628-0721. Action Plans Developed to Address Configuration Control Weaknesses Not Totally Effective as Listed BW990053, Forwards post-outage Summary Rept for ISI Examinations Conducted During Seventh Refueling Outage of Braidwood Station,Unit 21999-08-13013 August 1999 Forwards post-outage Summary Rept for ISI Examinations Conducted During Seventh Refueling Outage of Braidwood Station,Unit 2 BW990052, Informs That RW Clay,License OP-31044,no Longer Requires Operator License at Braidwood Station1999-08-12012 August 1999 Informs That RW Clay,License OP-31044,no Longer Requires Operator License at Braidwood Station ML20210N5651999-08-0606 August 1999 Forwards Rev 8 to Nuclear Generating Stations Emergency Plan, for Plants.With Summary of Changes ML20210U8031999-08-0404 August 1999 Forwards SER Granting Licensee Relief Requests VR-1,VR-3 & Portion of VR-2 Pursuant to 10CFR50.55a(a)(3)(ii).Relief Request VR-4 Does Not Require Explicit NRC Approval for Second 10-year Inservice Testing Program BW990049, Informs NRC of Plans to Demonstrate Compliance with 10CFR50.46 Requirements for Fuel Predicted to Experience Fuel Pellet to Rod Cladding Gap Reopening,During Current Cycle1999-08-0404 August 1999 Informs NRC of Plans to Demonstrate Compliance with 10CFR50.46 Requirements for Fuel Predicted to Experience Fuel Pellet to Rod Cladding Gap Reopening,During Current Cycle ML20210M9131999-08-0202 August 1999 Forwards Response to NRC AL 99-02, Operating Reactor Licensing Action Estimates, for Fys 2000 & 2001 for Comed ML20210K9761999-07-30030 July 1999 Forwards SE Accepting Licensee 60-day Response to GL 96-05, Periodic Verification of Design Basis Capability of Safety-Related Movs, for Plant ML20210K0771999-07-30030 July 1999 Submits 30-day Rept Re Discovery of ECCS Evaluation Model Error for Byron & Braidwood Stations,As Required by 10CFR50.46 ML20210G6291999-07-29029 July 1999 Forwards Insp Repts 50-456/99-11 & 50-457/99-11 on 990525-0706.Two Violations Noted & Being Treated as NCV, Consistent with App C of Enforcement Policy ML20210J8951999-07-29029 July 1999 Submits Other Actions,As Described,To Be Taken for Valves to Resolve Potential Pressure Locking Concerns,In Light of Extended Period for Valve Bonnet Natural Depressurization,In Response to GL 95-07, Pressure Locking & Thermal.. BW990045, Forwards Errata to 1998 Radioactive Effluent Release Rept. Info Has Been Corrected & Revised Spreadsheets Included in Attachment to Ltr1999-07-28028 July 1999 Forwards Errata to 1998 Radioactive Effluent Release Rept. Info Has Been Corrected & Revised Spreadsheets Included in Attachment to Ltr ML20216D3781999-07-21021 July 1999 Forwards Revised NFM9900022, Braidwood Unit 2 Cycle 8 COLR on ITS Format & W(Z) Function, to Account for Error That W Discovered in Computer Code Used to Calculate PCT During LBLOCA ML20210C3961999-07-20020 July 1999 Forwards Insp Repts 50-456/99-09 & 50-457/99-09 on 990517-0623.No Violations Noted.Weakness Identified on 990523,when Station Supervisors Identified Individual Sleeping in Cable Tray in RCA ML20216D7061999-07-19019 July 1999 Forwards Rev 45 to Braidwood Station Security Plan,Iaw 10CFR50.4(b)(4).Plan Includes Listed Changes.Rev Withheld, Per 10CFR73.21 ML20210B7071999-07-16016 July 1999 Responds to Requesting Review & Approval of Three Proposed Changes to Ceco QA TR,CE-1A Per 10CFR50.54(a)(3) & 10CFR50.4(b)(7) BW990042, Forwards Braidwood Station,Unit 1 Post Accident Monitoring Rept for Reactor Vessel Level Indication Sys (Rvlis),Due to Facility Train B RVLIS Being Restored to Operable Status After 7-day Completion Time,Per TS 3.3.3 & 5.6.71999-07-16016 July 1999 Forwards Braidwood Station,Unit 1 Post Accident Monitoring Rept for Reactor Vessel Level Indication Sys (Rvlis),Due to Facility Train B RVLIS Being Restored to Operable Status After 7-day Completion Time,Per TS 3.3.3 & 5.6.7 ML20209H2991999-07-16016 July 1999 Withdraws 980529 LAR to Credit Automatic PORV Operation for Mitigation of Inadvertent Safety Injection at Power Accident.Response to NRC 990513 RAI Re LAR Encl IR 05000456/19993011999-07-15015 July 1999 Forwards Operator Licensing Exam Repts 50-456/99-301OL & 50-457/99-301OL for Test Administered from 990607-11 to Applicants for Operating Licenses.Three Out of Four Applicants Passed Exams BW990040, Forwards Revised Monthly Operating Repts for May 1999 for Braidwood Station,Units 1 & 2.Since Issuance of Rept,It Was Determined That Rt That Occurred on Unit 2 During Startup Was Inadvertently Omitted1999-07-15015 July 1999 Forwards Revised Monthly Operating Repts for May 1999 for Braidwood Station,Units 1 & 2.Since Issuance of Rept,It Was Determined That Rt That Occurred on Unit 2 During Startup Was Inadvertently Omitted ML20209H5141999-07-14014 July 1999 Discusses 990701 Telcon Re Arrangements for NRC to Inspect Licensed Operator Requalification Program at Braidwood Nuclear Generating Station for Week of 990927,which Coincides with Licensee Regularly Scheduled Exam Cycle ML20207H7501999-07-12012 July 1999 Forwards Revised Pressure Temp Limits Rept, for Byron Station,Units 1 & 2.Revised Pressurized Thermal Shock Evaluations,Surveillance Capsule Rept & Credibility Repts, Also Encl ML20196J9131999-07-0101 July 1999 Submits Status of Nuclear Property Insurance Currently Maintained for Braidwood,Byron,Dresden,Lasalle County,Quad Cities & Zion Nuclear Power Stations,Per 10CFR50.54(w)(3) ML20196J9061999-07-0101 July 1999 Provides Evidence That Util Maintains Guarantee of Payment of Deferred Premiums in Amount of $10 Million for Each of Thirteen Reactors,Per 10CFR140.21 ML20209B8241999-06-30030 June 1999 Forwards Five 3.5 Inch Computer Diskettes Containing Revised Annual Dose Repts for 1994 Through 1998 for Individuals Receiving Neutron Dose Not Previously Included in Reported Total Effective Dose Equivalent Values.Without Diskettes ML20196H0631999-06-28028 June 1999 Provides Individual Exam Results for Licensee Applicants Who Took June 1999 Initial License Exam.Without Encls ML20212H8241999-06-24024 June 1999 Informs That Effective 990531 NRC Project Mgt Responsibility for Byron & Braidwood Stations Was Transferred to Gf Dick ML20196D4591999-06-18018 June 1999 Forwards Insp Repts 50-456/99-07 & 50-457/99-07 on 990414- 0524.No Violations Noted.Conduct of Activities Generally Characterized by safety-conscious Operations,Sound Engineering & Maintenance Practices ML20196A6671999-06-17017 June 1999 Refers to 990609 Meeting with Util in Braidwood,Il Re Licensee Initiatives in Risk Area & to Establish Dialog Between SRAs & Licensee PRA Staff 05000457/LER-1998-003, Forwards LER 98-003-00 Re Unit 2 Reactor Trip.Actions & Associated Action Tracking Number That Braidwood Station Is Committed to Implement in Response to LER Described Below1999-06-16016 June 1999 Forwards LER 98-003-00 Re Unit 2 Reactor Trip.Actions & Associated Action Tracking Number That Braidwood Station Is Committed to Implement in Response to LER Described Below 05000456/LER-1998-004, Forwards LER 98-004-01,IAW 10CFR50.73(a)(2)(i)(B). LER 98-004 Included Commitment to Transmit Supplemental Rept by 990628,due to on-going Evaluations1999-06-16016 June 1999 Forwards LER 98-004-01,IAW 10CFR50.73(a)(2)(i)(B). LER 98-004 Included Commitment to Transmit Supplemental Rept by 990628,due to on-going Evaluations 05000456/LER-1999-001, Forwards LER 99-001-00,IAW 10CFR50.73(a)(2)(i)(B). Description of Action & Associated Action Request Number That Braidwood Station Is Committed to Implement Is Response to LER Is Listed1999-06-15015 June 1999 Forwards LER 99-001-00,IAW 10CFR50.73(a)(2)(i)(B). Description of Action & Associated Action Request Number That Braidwood Station Is Committed to Implement Is Response to LER Is Listed ML20195J3741999-06-14014 June 1999 Forwards Insp Rept 50-457/99-08 on 990415-0518.No Violations Noted.Sg Insp Program Found to Be Thorough & Conservative BW990028, Forwards Braidwood Unit 2 Cycle 8 COLR in ITS Format & W(Z) Function, IAW TS 5.6.51999-06-10010 June 1999 Forwards Braidwood Unit 2 Cycle 8 COLR in ITS Format & W(Z) Function, IAW TS 5.6.5 ML20195F3231999-06-0909 June 1999 Informs That in ,Arrangements Finalized for Exam to Be Administered at Plant During Wk of 990607.All Parts of Plant Initial Licensed Operator Exam Approved for Administration 1999-09-08
[Table view] Category:OUTGOING CORRESPONDENCE
MONTHYEARML20217G9791999-10-14014 October 1999 Forwards SE Accepting Relief Requests to Rev 5 of First 10-year Interval Inservice Insp Program for Plant,Units 1 & 2 ML20217A9311999-09-29029 September 1999 Informs That NRC 6-month Review of Braidwood Identified That Performance in Maint Area Warranted Increased NRC Attention. Addl Insps Beyond Core Insp Program Will Be Conducted Over Next 6 Months to Better Understand Causes of Problem ML20216H4301999-09-23023 September 1999 Informs That Arrangements Made for Administration of Licensing re-take Exams at Braidwood Generating Station for Week of 991108 ML20216F7441999-09-17017 September 1999 Forwards Insp Repts 50-456/99-13 & 50-457/99-13 on 990706-0824.Three Violations Noted & Being Treated as Ncvs. Insp Focused on C/As & Activities Addressing Technical Concerns Identified During Design Insp Completed on 980424 ML20212A6991999-09-10010 September 1999 Forwards SE Accepting Licensee Second 10-year Interval ISI Program Request for Relief 12R-07 for Plant,Units 1 & 2 ML20211Q6611999-09-0606 September 1999 Informs That NRC Tentatively Scheduled Initial Licensing Exam for Braidwood Operator License Applicants During Wk of 010115 & 22.Validation of Exam Will Occur at Station During Wk of 001218 ML20211P1901999-09-0303 September 1999 Forwards Insp Repts 50-456/99-12 & 50-457/99-12 on 990707-0816.No Violations Noted.Insp Generally Characterized by safety-conscious Operations,Sound Engineering & Maint Practices & Careful Radiological Work Controls ML20211K1081999-09-0202 September 1999 Responds to Request for Addl Info to GL 92-01,Rev 1,Suppl 1, Reactor Vessel Structural Integrity, for Braidwood,Units 1 & 2 & Byron,Unit 2 ML20211P1761999-09-0202 September 1999 Discusses Licensee Aug 1998 Rev 3K to Portions of Braidwood Nuclear Power Station Generating Stations Emergency Plan Site Annex Submitted Under Provisions of 10CFR50.54(q). NRC Approval Not Required ML20211B8691999-08-20020 August 1999 Forwards Insp Repts 50-254/99-10,50-265/99-10,50-454/99-09, 50-455/99-09,50-456/99-10 & 50-457/99-10 on 990628-0721. Action Plans Developed to Address Configuration Control Weaknesses Not Totally Effective as Listed ML20210U8031999-08-0404 August 1999 Forwards SER Granting Licensee Relief Requests VR-1,VR-3 & Portion of VR-2 Pursuant to 10CFR50.55a(a)(3)(ii).Relief Request VR-4 Does Not Require Explicit NRC Approval for Second 10-year Inservice Testing Program ML20210K9761999-07-30030 July 1999 Forwards SE Accepting Licensee 60-day Response to GL 96-05, Periodic Verification of Design Basis Capability of Safety-Related Movs, for Plant ML20210G6291999-07-29029 July 1999 Forwards Insp Repts 50-456/99-11 & 50-457/99-11 on 990525-0706.Two Violations Noted & Being Treated as NCV, Consistent with App C of Enforcement Policy ML20210C3961999-07-20020 July 1999 Forwards Insp Repts 50-456/99-09 & 50-457/99-09 on 990517-0623.No Violations Noted.Weakness Identified on 990523,when Station Supervisors Identified Individual Sleeping in Cable Tray in RCA ML20210B7071999-07-16016 July 1999 Responds to Requesting Review & Approval of Three Proposed Changes to Ceco QA TR,CE-1A Per 10CFR50.54(a)(3) & 10CFR50.4(b)(7) IR 05000456/19993011999-07-15015 July 1999 Forwards Operator Licensing Exam Repts 50-456/99-301OL & 50-457/99-301OL for Test Administered from 990607-11 to Applicants for Operating Licenses.Three Out of Four Applicants Passed Exams ML20209H5141999-07-14014 July 1999 Discusses 990701 Telcon Re Arrangements for NRC to Inspect Licensed Operator Requalification Program at Braidwood Nuclear Generating Station for Week of 990927,which Coincides with Licensee Regularly Scheduled Exam Cycle ML20196H0631999-06-28028 June 1999 Provides Individual Exam Results for Licensee Applicants Who Took June 1999 Initial License Exam.Without Encls ML20212H8241999-06-24024 June 1999 Informs That Effective 990531 NRC Project Mgt Responsibility for Byron & Braidwood Stations Was Transferred to Gf Dick ML20196D4591999-06-18018 June 1999 Forwards Insp Repts 50-456/99-07 & 50-457/99-07 on 990414- 0524.No Violations Noted.Conduct of Activities Generally Characterized by safety-conscious Operations,Sound Engineering & Maintenance Practices ML20196A6671999-06-17017 June 1999 Refers to 990609 Meeting with Util in Braidwood,Il Re Licensee Initiatives in Risk Area & to Establish Dialog Between SRAs & Licensee PRA Staff ML20195J3741999-06-14014 June 1999 Forwards Insp Rept 50-457/99-08 on 990415-0518.No Violations Noted.Sg Insp Program Found to Be Thorough & Conservative ML20195F3231999-06-0909 June 1999 Informs That in ,Arrangements Finalized for Exam to Be Administered at Plant During Wk of 990607.All Parts of Plant Initial Licensed Operator Exam Approved for Administration ML20207B6361999-05-25025 May 1999 Forwards SE Accepting Revised SG Tube Rupture (SGTR) Analysis for Bryon & Braidwood Stations.Revised Analysis Was Submitted to Support SG Replacement at Unit 1 of Each Station ML20207A5891999-05-20020 May 1999 Forwards Insp Repts 50-456/99-05 & 50-457/99-05 on 990405-23.Two non-cited Violations Identified ML20206U4641999-05-18018 May 1999 Responds to Util 990517 Request That NRC Exercise Discretion Not to Enforce Compliance with Actions Required in TS 3.0.3. Documents 990516 Telcon with Licensee Re NOED ML20206N4791999-05-13013 May 1999 Forwards RAI Re 980529 Amend Request for Byron & Braidwood to Credit Automatic PORV Operation for Mitigation of Inadvertent SI at Power Accident.Response Requested 60 Days After Receipt Date ML20206Q5321999-05-11011 May 1999 Forwards Insp Repts 50-456/99-06 & 50-457/99-06 on 990302-0413.Configuration Control Error Resulted in Isolation of Unit 1 Emergency Boration Flow Path Through Designated Boric Acid Pump for Period of 3 H Occurred ML20206H8161999-05-0505 May 1999 Confirms Discussion Re Meeting to Be Conducted on 990527 at Braidwood Station Training Building.Meeting Will Discuss Braidwood Station Performance as Described in Most Recent Plant Performance Review ML20206E7021999-05-0303 May 1999 Advises That Info Contained in Document Entitled, Licensing Rept for Sf Rack Installation at Byron & Braidwood Stations, HI-982083,will Be Withheld from Public Disclosure Per 10CFR2.790 ML20205G9631999-03-26026 March 1999 Advises of Planned Insp Effort Resulting from Braidwood Plant Performance Review for Period 870830-990131.Historical Listing of Plant Issues & Details of NRC Insp Plan for Next 6 Months Encl ML20204J4241999-03-23023 March 1999 Forwards Insp Repts 50-456/99-04 & 50-457/99-04 on 990222-24 & 0303 Onsite & 0309 & 11 Region 3 Ofc.No Violations Noted. Implementation of Physical Security Plan Was Examined ML20204J9001999-03-23023 March 1999 Forwards Insp Repts 50-456/99-02 & 50-457/99-02 on 990120- 0301.No Violations Noted ML20204G2031999-03-22022 March 1999 Forwards Year 2000 Readiness Audit Rept Which Documents Results of NRR Audit Conducted at Facility from 990124-28 ML20204C7201999-03-16016 March 1999 Ack Receipt of Expressing Concern Over Sale of Certain Properties by Commonwealth Edison Co ML20204E3341999-03-16016 March 1999 Expresses Appreciation for Re Concerns Over Sale of Certain Properties by Licensee.No Regulatory Basis for NRC to Require Util to Rely on strip-mine Ponds as Suppl Source of Cooling Water ML20204E2801999-03-16016 March 1999 Ack Receipt of Rev 3M to Portions of Braidwood Nuclear Power Generating Station Emergency Plan Site Annex.Informs That NRC Approval Not Required Based on Ceco Determinations That Changes in Rev 3M Do Not Decrease Effectiveness of Plan ML20207J9741999-03-11011 March 1999 Discusses Rev 3,to Portions of Braidwood Power Station EP Site Annex.Based on Licensee Determinations That Changes Do Not Decrease Effectiveness of EP & Plan Continues to Meet Standards of 10CFR50.47(b),NRC Approval Not Required ML20203E9521999-02-11011 February 1999 Forwards Insp Rept 50-456/98-16 on 980916-990121.No Violations Were Identified.Insp Was Exam of Activities Re Engineering & Maint Activities for Replacement of Steam Generators for Compliance with Commission Regulations ML20203F2541999-02-10010 February 1999 Informs That Beginning 990216,DE Hills Will Be Chief of Operations Branch Which Includes Operator Licensing Function ML20203C9761999-02-0808 February 1999 Ack Receipt of ,Which Transmitted Changes Identified as Rev 44 to Security Plan.No NRC Approval Required ML20203A4601999-02-0505 February 1999 Ack Receipt of 981109 Evaluation of Indication in Base Metal of Braidwood Station,Unit 1,main Steam Piping Sys Elbow ML20203A3641999-02-0303 February 1999 Forwards Copy of FEMA Evaluation Rept for 980520 Emergency Preparedness Exercise at Braidwood.One Deficiency & Three Areas Requiring Corrective Action Identified.Deficiency Corrected During Remedial Exercise Held on 980806 ML20199E6561999-01-15015 January 1999 Discusses Unresolved Security Item Re Adequacy of Compensatory Measures Implemented for Section of Vehicle Barrier Sys.Issue Briefly Described as Listed ML20199E1351999-01-0808 January 1999 Forwards Revised Dates for Engineering & Technical Support Insp,Emergency Planning Insp,Security Insp & Operational Assessment Insp for Braidwood IR 05000456/19980141999-01-0505 January 1999 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Repts on 50-456/98-14 & 50-457/98-14 Issued on 981117 ML20198R0741998-12-30030 December 1998 Forwards Insp Repts 50-456/98-20 & 50-457/98-20 on 981020-1207.No Violations Noted.Insp Generally Characterized by safety-conscious Operations,Sound Engineering & Maint Practices & Careful Radiological Work Controls ML20197J6831998-12-10010 December 1998 Forwards Insp Repts 50-456/98-21 & 50-457/98-21 on 981110- 24.No Violations Noted.Insp Reviewed Corrective Actions for Previously Identified Issues ML20197H4261998-12-0404 December 1998 Forwards Insp Rept 50-456/98-18 on 981015-23 & 1109-10.No Violations Noted.Some Weaknesses Identified in Operator Performance & Training ML20197K1311998-12-0202 December 1998 Forwards Planned Insp Effort for Next 6 Months at Plant.Info Provided to Minimize Resource Impact on Staff & Allow for Scheduling Conflicts & Personnel Availability to Be Resolved in Advance of Inspector Arrival Onsite 1999-09-06
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- April 3, 1998 CD[Dc8 Mr. Oliver President, Nuclear Generation Group Cornmonwealth Edison Company ATTN: Regulatory Services Executive Towers West lil 1400 Opus Place, Suite 500 Downers Grove, IL 60515 SUBJECT: NOTICE OF VIOLATION (NRC INSPECTION REPORT NO. 50-456/97021(DRS); 50-457/97021(DRS))
Dear Mr. Kingsley:
This will acknowledge receipt of your letter dated March 11,1998, in response to our letter dated February 11,1998, transmitting a Notice of Violation associated with the above
- mentioned inspection report at the Braidwood Generating Station. We have reviewed your corrective actions and have no further questions at this time. These corrective actions will be examined during future inspections.
Sincerely,
l original /s/ M. Leach for John A. Grobe, Director Division of Reactor Safety Docket No. 50-456;50-457 Enclosure: Ltr dtd 3/11/98 from T. Tulon, Comed to USNRC l
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DATE 04//]]98 04/1498 ( Y " 04/3/98 -) 04/5/98 OFFICIAlbtECORD COPY 9904060296 900403 ADOCK 05000456 PDR G PDR
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. q cc w/o encl: M. Wallace, Senior Vice President D. Helwig, Senior Vice President G. Stanley, PWR Vice President J. Perry, BWR Vice President b. Farrar, Regulatory Services Manager 1. Johnson, Licensing Director DCD - Licensing T. Tulon, Site Vice President BraidwM Station Manager T. Simpkin, Regulatory Assurance Supervisor cc w/ encl: Richard Hubbard Nathan Schloss, Economist Office of the Attomey General State Liaison Officer Chairman, Illinois Commerce Commission Distribution:
Docket File w/ encl- DRP w/enci PUBLIC IE-01 w/enci TSS w/ encl A. Beach w/ enc! DRS (2) w/enci Deputy RA w/enci Rlli PRR w/enci Rill Enf. Coord. w/ encl RAC1 (E-Mail)
SRI Braidwood w/ encl IEO (E-Mail)
Project Mgr., NRR w/enci DOCDESK (E-Mail)
GREENS
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.-. firaidwood Gencratmg Statuan
- Houte si, flux H e I liraceville. IL 60407%I9 Tel H l 5-s 58-2801 l March 11,1998 Document Control Desk US Nuclear Regulatory Commission Washington, D.'C. 20555
.
Subject: Reply to Notice of Violation NRC Inspection Report 50-456(457)/97021 Braidwood Nuclear Power Station Units 1 and 2 NRC Docket Numbers 50-456 and 50-457 Reference: J. A. Grobe letter to O. dated February 11,1998, transmitting Notice of Violation from Inspection Report 50-456(457)/97021 Results from a NRC special inspection performed to review details from a Unit Two feedwater system hydraulic transient, which occurred at Braidwood Station on November 10, 1997, are documented in the Inspection Report referenced above. Three Severity Level IV violations were included in the inspection report. Comed's response to the violations is documented in the attachment to this letter.
Braidwood Station appreciates the comments made in the report concerning the response to the event. including the initiation of appropriate actions for affected systems and components as well as the investigation and assessment of the event. While we work hard to prevent challenges to the plant, we recognize that if an event does occur. it is important to promptly identify the event circumstances so an appropriate resolution can be implemented.
The following commitments were made in the attachment to this letter:
e Operations will review this event with respect to the unit designator convention rules that hase existed and also review the current practice of using unit designators on unit speci6c components.
- Operations uill review the Electronic Work Control System (EWCS) dattbase for single unit specific components in an attempt to identify unit differences. Based on the results. operating procedures will be enhanced to delineate these unit specific valves.
- Three sy stems will be selected and rei imed for their vulnerability to water hammer es ents.
Consideration will be system perforr anu. with respect to existing high point vents along with appropriate fill and s ent procedures si n,unni omp.nn y-]Q { f)' fp S
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Document Control Desk
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March 11,1998
- Forrnal training will be provided to Operations persennel as part of operator requalification trr.ining to discuss details associated with this event. including the root causes and corrective
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actions.
- * A review of the guidance associated with PIF initiation and addressing operability issues as specified in NSWP A 15 and BwAP 33010 will be done to ensure requirements are clear. The procedures will be revised as necessary, If your staff has any questions or comments concerning this letter, please refer them to Terrence Simpkin, Braidwood Regulatory Assurance Supervisor, at (815) 458-2801, extension 2980.
_
dnothy J. Tulon Site Vice President Braidwood Nuclear Generating Station Attachment cci A.B. Beach, NRC Regional Administrator. Region 111 S. Bailey, Project Manager, NRR C.J. Phillips, Senior Resident Inspector F. Niziolek. Division of Engineering. Office of Nuclear Safety, IDNS u C nrcs98019tjt. doc i
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REPLY TO NOTICE OF VIOLATION-(50-456:457/97021-Oi)
1. 10 CFR 50, Appendix B, Criterion V requires in part that activities affecting quality shall be prescribed by documented procedures of a type appropriate to the circumstances.
Contrary to the above, as of November 10.1997, the procedure which was used to fill and vent the 2D feedwater system, an activity affecting quality, as prescribed by BwOP FW-3," Fill and Vent of the Feedwater System,l' Revision 6, was inappropriate for the circumstances. Sections of feedwater piping between the
Feedwater Shutoff Valve (2FW006D) and the Feedwater Isolation Valve (2FWOO9D) were not adequately vented, and as a result, safety-related components were damaged by the feedwater system waterhammer event that occurred on November 10,1997.
REASON FOR THE VIOLATION Main feedwater system operating procedure BwOP FW-3," Filling and Venting the Feedwater System," did not provide adequate instructions to the operators to properly fill, vent, or compress and flush the air pocket in the main feedwater line. Steps F. 8 h, i,j, and k in the procedure refer to opening and closing the manual high point vent valves
"_FWO92 A through D and _FW102 A through D". These high point vents are included in the plant design for Unit 1, however not for Unit 2. The differences in plant design were not appropriately considered during the procedure review. As a result, the procedure did not provide adequate instructions for Unit 2.
CORRECTIVE ACTIONS TAKEN AND RESULTS ACHIEVED BwOP FW-3 was revised to provide proper direction for equalizing pressure across the 2FWO39A-D valves and additionally gives specific direction for filling and venting the Unit 2 feedwater piping. The station start-up procedure (BwGP 100-2) has also been rev sed to ensure minimal differential pressure across the preheater bypass valves NWO39A-D) prior to stroking the valves. This piucedure now directs the operator to
. the resised operating procedure (BwOP FW-3)if the differential pressure is excessive.
ACTIONS TAKEN (TO BE TAKEN) TO PREVENT RECURRENCE Operations personnel were tailgated on the feedwater hammer event. The procedure inadequacies were discussed during the tailgate sessions.
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,[ ATTACliMENT 1 REPLY TO NOTICE OF VIOLATION (50-456:457/97021.-Qjj
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Operations will review this event with respect to the unit designator convention rules that
. have existed and also review the current practice of using unit designators on unit specific components.
Operations will review the Electronic Work Control System (EWCS) database for single unit specific components in an attempt to identify unit differences. Based on the results.
operating procedures will be enhanced to delineate these unit specific valves.
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Three systems will be selected and reviewed for their vulnerability to water hammer events. Consideration will be system performance with respect to existing high point vents along with appropriate fill and vent procedures.
Formal training will be provided to Operations personnel as part of operator requalification training to discuss details associated with this event, including the root causes and corrective actions.
DATE WHEN FULL COMPLIANCE WAS ACHIEVED Full compliance was achieved on November 11,1997, when BwOP FW-3 was revised to eliminate the noted deficiencies.
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ATTACHMENT I
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REPLY TO NOTICE OF VIOLATION (50-456:457/97021-02)
2. 10 CFR 50, Appendix B, Criterion V requires in part that activities affecting quality shall be prescribed by documented procedures and shall be accomplished in accordance with these procedures.
a. Braidwood Procedure, BwAP 100-20," Procedure Use and Adherence,"
Revision 7El, paragraph D.9 required, in part, that when an individual perceives that any procedure carmot be performed as written, the individual's supervisor is required to initiate a permanent or temporary
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change, or use Braidwood Procedure, BwAP 100-20T1 to document any deviations from a procedure.
Contrary to the above, on November 10,1997, when the Procedure 2BwGP 100-2," Plant Startup," Revision 9, could not be performed as written, the licensee failed to follow BwAP 100-20 to issue a procedure revision or change. Specifically, step F.14.h of this procedure caused valves 2FWO35A-D to close and instructions had not been provided to reopen these valves. The operators took manual actions, not described in the procedure nor documented in an approved procedure change process, to open these valves and restore feedwater flow.
REASON FOR THE VIOLATION 1/2 BwGP 100-2," Plant Startup," did not provide adequate guidance on restoring the feedwater isolation valves to the desired lineup following Reactor Trip Breaker testing because this action had been considered a " skill of the craft" function. As a result of workers considering this function to be " skill of the craft," no procedure deviation form was initiated.
CORRECTIVE ACTIONS TAKEN AND RESULTS ACHIEVED 1/2 BwGP 100-2 was reviewed and revised to provide specific guidance on feedwater isolation .ntvd:) realignment following reset of the feedwater isolatmo sgnal. This procedure was also reviewed to determine if human factor improvements could be made.
Appropriate revisions will be made prior to the next scheduled refueling outage.
Following a Unit Two trip which occurred on January 26,1998, the revised procedure was successfully executed during the unit startup.
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ATTACllMENT I REPLY TO NOTICE OF VIOLATION (50-456:457/97021 02)
ACTIONS TAKEN (TO BE TAKEN) TO PREVENT RECURRENCE Operations personnel were tailgated on this procedure inadequacy and the importance of submitting a procedure change request if a procedure enhancement is necessary.
A review of BwGP procedures was conducted to determine if other procedure steps needed additional detail provided. Procedure revision requests were submitted based on this review.
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DATE WHEN FULL COMPLIANCE WAS ACHIEVED Full compliance was achieved on January 30,1998, when the revision to 1/2 BwGP 100-2, step F.14.i was completed.
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Violation 50-456:457/97021-01 2. 10 CFR 50, Appendix B, Criterion V requires in part that activities affecting quality shall be prescribed by documented procedures and shall be accomplished in accordance with these procedures.
b. Braidwood Procedure BwAP 330-10," Operability Determinations," Revision 3El, paragraph F.5, required "Any on-site personnel knowledgeable of a possible OPERABILITY ISSUE, identified to them by any source. MUST promptly notify the Shift Manager (SM), or designee and write a PIF" Also, the Commonwealth Edison Procedure, NSWP-A-15," Comed Nuclear Division Integrated Reporting Program," Revision 1, paragraph 6.1.1 required "All station individuals or contractors should initiate an Exhibit A (Problem Identification Form (PIF)), when a problem i:, =ugnized."
Contrary to the above:
(1) On November 10,1997, the licensee had failed to follow NSWP-A-15 and BwAP 330-10 requirements to issue a PIF for the tempering line snubber considered inoperable. Specifically, the 2D feedwater tempering line snubber had been determined to be inoperable (based on station operator log entries) and a PIF had not been issued to document the inoperable status of this equipment.
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ATTACHMENT 1
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REPLY TO NOTICE OF VIOLATION (50-456:457/97021-03)
(2) On November 10,1997, the licensee failed to follow NSWP-A-15 and BwAP 330-10 requirements to issue a PIF when a problem was recognized / identified on steam generator 2D main feedwater line snubbers (2FWO5011S,2FWO5013S, & 2FWO5022S).
Specifically, problems with these snubbers had been recognized /
identified in action requests (970084651,970084666,970084667) .
on November 10,1997, and corrected prior to documenting the problem in PIF A1997-5074," Snubbers 2FWO501IS,
2FW05013S, & 2FWO5022S Suspect," on November 13,1997.
REASON FOR THE VIOLATION in both examples specified in the violation, where operator log entries were made to document Limiting Conditkia for Operating Action Requirements (LCOAR) 7.8-la entries resulting from damaged supports and three " suspect snubbers" were repaired and tested using the Action Request program, Problem Identification Forms (PIFs) were not promptly initiated as required by station procedures. Following initial walkdowns of the affected areas, PIFs were planned to be generated by one of the walkdown participants.
The Investigation Team Leader believed that initiating additional PIFs was unnecessary because it was the team's belief that the identified concerns would be addressed by the initial PlF generated for the water hammer event.
On November 10,1997, when a severely damaged support was discovered during the walkdown, Operations was notified as required. This notification resulted in entry into LCOAR 7.8-la. The Unit Supervisor expected the engineer who made the notification and was most knowledgeable of the damage done to the support to initiate a PIF. Since it had been determined that additional PIFs were unnecessary because an initial PIF had been written documenting damage to the feedwater line and the line had been declared inoperable, subsequent PIFs were not initiated.
CORRECTIVE ACTIONS TAKEN AND RESULTS ACHIEVED PIF t/A1997-05074 was generated to document the concerns associated with snubbers 2FWO501IS. 2FWO5013S and 2FWO5022S. It was concluded that all LCOAR requirements were satisfied and the three suspect snubbers were functionally tested or stroked as required and successadly met established acceptance criteria. No evidence of degradation was ider.tifiel for these snubbers.
BwAP 330-10. " Operability Determinations," Attachment B, which was not initially
. requested because LCOAR 7.8-la had been entered following the initial containment entry, was later completed for the six inch tempering line and determined that the line
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[ ATTACHMENT I REPLY TO NOTICE OF VIOLATION ($nd%44"F97021-Oil was operable. In addition, a BwAP 330-10, Attachment C was also completed which showed that the tempering line and penetration 2PC-99 were operable.
' ACTIONS TAKEN (TO BE TAKEN) TO PREVENT RECURRENCE The Investigation Team Leader and engineer who participated in the walkdowns of the affected areas were counseled on the event and the inappropriate action of not generating
Problem Identification Forms for the identified structural concems.
- A review of the guidance associated with PIF initiatior and addressing operability issues
' as specified in NSWP-A-15 and BwAP 330-10 will be done to ensure requirements are clear. The procedures will be revised as necessary.
DATE WHEN FULL COMPLIANCE WAS ACHIEVED
- Full compliance was achieved when the individuals who failed to initiate Problem Identification Forms for identified concerns were appropriately counseled.
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