Letter Sequence Other |
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Results
Other: ML19207C172, ML19209B403, ML19256A848, ML19259A812, ML19263B926, ML19270G086, ML19273B549, ML19274D206, ML19276E491, ML19276F808, ML19281A096, ML19282C563, ML19282C601, ML19282C615, ML19289F472, ML19317H313, ML20037A204, ML20037A229, ML20049A130, ML20062G381, ML20062G387, ML20064C234, ML20064D492, ML20064E453, ML20064H429, ML20076A802, ML20076A836, ML20076A843, ML20076A904, ML20076A952, ML20076B087, ML20076B088, ML20076B089, ML20244A548, ML20244A585
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MONTHYEARML20236C3041976-09-14014 September 1976
Notification of 760928 Meeting W/Util in Bethesda,Md to Discuss Util Concepts for Proposed Neutron Shield for Plant. Summary of Neutron Streaming Problem Encl
Project stage: Meeting
ML19344A8901978-07-31031 July 1978
Forwards Addl Info Re Control of Heavy Loads Near Spent Fuel,Proposed Neutron Shield Design & Withdrawal of Applicants Tech Spec Proposed Change Re Revision to Containment Leak Rate Testing
Project stage: Withdrawal
ML20064C2341978-10-11011 October 1978
Forwards Proposed Tech Specs to Require Diesel Generator Start Time of Less than or Equal to 20
Project stage: Other
05000336/LER-1978-024-03, /03L-0 on 781004:during Surveillance Testing, Setpoint for Reactor Protec Sys Reactor Coolant Low Flow Trip on Channel B Was Out of Spec.Setpoint Was Readjusted. Rev Will Req Low Flow Trip Unit Setpoint Be Reset1978-11-0101 November 1978
/03L-0 on 781004:during Surveillance Testing, Setpoint for Reactor Protec Sys Reactor Coolant Low Flow Trip on Channel B Was Out of Spec.Setpoint Was Readjusted. Rev Will Req Low Flow Trip Unit Setpoint Be Reset
Project stage: Request
ML20064D4921978-11-0101 November 1978
Presents Details of Stretch Power Effort in Advance of Execution to Enable Facility to Operate at 2,700 Mwt Following Second Refueling Outage
Project stage: Other
ML20049A1301978-11-13013 November 1978
Forwards Nuc Shield Design as Alternate to That Proposed in .Design Incorp ALARA Considerations & Philosophy. Requests Expeditious Review to Allow Target Installation Date.Oversize Drawing Available in Central File
Project stage: Other
ML20027A4181978-11-15015 November 1978
Notification of 781121 Meeting W/Ne Nuc Energy Co to Discuss Tech Review Effort & Schedule Necessary to Authorize Stretch Pwr Level Rating of 2700MWT
Project stage: Meeting
ML20064E4531978-11-18018 November 1978
Forwards Sys Description for Reactor Coolant Pump Shaft Speed Trip Function Being Installed by Util to Replace Steam Generator Differential Pressure Sys.Believes Proposal Is Exempt from Amend Fee
Project stage: Other
ML20062G3871978-12-14014 December 1978
Sleeved Guide Tube Inspec Prog, CEN-104(N)-NP.Describes Inspec Prog to Show Performance Re Wear.Edited to Delete Info W/Held from Pub Disclosure IAW 10CFR2.790
Project stage: Other
ML20064H4291978-12-15015 December 1978
Appl to Amend Oper Lic DPR-65 by Increasing Maximum Allowable Thermal Output of Subj Facil Over 2700MWt to Commence W/Cycle 3 on 790515.W/att Environ Impact Appraisal, Eval of Radiological Consequences & Site Meteorology
Project stage: Other
ML20062G3811978-12-18018 December 1978
Forwards non-proprietary Version of Sleeved CEA Guide Tube Inspec Prog,CEN-104(N)-NP,relating to Amend 38 to DPR-65. IAW 10CFR2.790.W/encl Affidavit
Project stage: Other
ML19256A5231978-12-21021 December 1978
Summary of 781221 Meeting Re Neutron Shield Design.Applicant Will Forward Qualifications of Design by mid-January 1979 & Request a Safety Evaluation by 790331
Project stage: Approval
ML19267A2841978-12-28028 December 1978
Requests Acceptance of Proposed Changes to Tech Specs for License DPR-65 Adding Requirement of Operable Charging Pump & Operable Flow Path as ECCS Subsys.W/Att Description of Proposed Changes
Project stage: Request
ML19274D2061978-12-29029 December 1978
Pursuant to 781215 Request by Applicant to Increase Thermal Power of Unit to 2700 Mwt,Or Requests IE Evaluation of Utils Past Mgt & Discussion of Outstanding Insp Items Re Safe Operation at Stretch Power Level
Project stage: Other
ML19274D2521979-01-0303 January 1979
Summary of Meeting on 781121 in Bethesda,Md to Discuss Stretch Power Program Including Control Element Assembly Guide Tube Wear Basis,Cycle 2 & 3 Assemblies,Eccs, & Low Flow Trip.W/Tentative Review Schedule & Submittal Schedule
Project stage: Meeting
ML19259A8121979-01-0808 January 1979
Ack Receipt of 781101,781108 & 781215 Requests for Review & Comments on Stretch Power,Core Reload & Reactor Coolant Pump Speed Sensing Sys.Staff Considers Requests as First Submittals for Amend & Are Subj to Class V Fee
Project stage: Other
ML19256A8481979-01-0909 January 1979
Discusses Status of Proposed Tech Spec Revision Increasing Response Time of Encl Bldg Filtration Sys.Disagrees W/Nrc Dose Calculations.Contends 151 Rems Thyroid Dose & 3.8 Rems Whole Body Does Are Conservative
Project stage: Other
ML19263B9261979-01-17017 January 1979
Forwards $25,800 Payment for Licensing Fee Per NRC
Project stage: Other
ML19269C8461979-02-0606 February 1979
Responds to NRC Verbal Request for Addl Info on Proposed Mod to Tech Specs Re ECCS Performance Calculations for Charging Pump Flow.No Plant Mod Is Necessary & There Is No Change in Valve Motion or Operability Requirements
Project stage: Request
ML19263C4881979-02-12012 February 1979
Proposes Amend to License DRR-65.Proposed Changes Include Core Performance Characteristics & Safety Analyses Re Operation at 2,700 Mwt
Project stage: Request
ML19283B6651979-02-23023 February 1979
Forwards Rept on Neutron Shield Design Qualification. NRC Concerns Raised During 781128 Meeting Are Addressed in Rept. Items on Shield Movement,Leakage & Pressure Relief Valves Discussed in Forwarding Ltr
Project stage: Meeting
ML19281A0961979-02-27027 February 1979
Supports Proposed License Amend to Increase Rated Thermal Power to 2,700 Mwt,Starting W/Cycle 3 Operation.Forwards Addl Info Re Control Rod Ejection,Main Steam Line Rupture & Seized Rotor Event
Project stage: Other
ML19276E4911979-03-0202 March 1979
Forwards Proposed Amend to License DPR-65,changing Tech Specs to Incorporate Reactor Coolant Pump Speed Sensing Sys. W/Affidavit & Oversized Drawing
Project stage: Other
ML19276F5721979-03-14014 March 1979
Request for Addl Info Re Utils Cycle 3 Reload/Stretch Power Request of 790212
Project stage: RAI
ML19282C6011979-03-22022 March 1979
Forwards Results of non-LOCA Safety Analysis Necessary to Support Cycle 3 Operation at 2,700 Mwt
Project stage: Other
ML19282C5631979-03-23023 March 1979
Util Determined Certain stem-mounted Limit Switches on safety-related Valves May Not Be Suitable for Svc in LOCA Containment.Forwards List of Specific Switch Types & Valves on Which Switches Are Installed
Project stage: Other
ML20244A5481979-03-23023 March 1979
Provides Trip Setpoint for Proposed Tech Spec Revision to Incorporate Reactor Coolant Pump Speed Sensing Sys as Addition to Reactor Protection Sys
Project stage: Other
ML19273B5681979-03-27027 March 1979
Responds to NRC 790314 Request for Addl Info Re Cycle 3 Operation
Project stage: Request
ML19282C6151979-03-28028 March 1979
Forwards Info Requested in .Desribes Loop Current Step Response Method of in Situ Response Time Testing of Resistance Temperature Detectors
Project stage: Other
ML20037A2041979-03-29029 March 1979
Forwards Proposed Insp Program for Sleeved Guide Tubes. Program Withheld (Ref 10CFR2.790)
Project stage: Other
ML19273B5491979-03-30030 March 1979
Forwards Results of Large Break Loca/Eccs Performance Analysis.Qa Verification by C-E,NSSS & Fuel Supplier Is Expected on 790410.W/basis for no-fee Determination
Project stage: Other
ML20076A8021979-04-0606 April 1979
In Answer to IE Bulletin 79-01,environmentally Qualified stem-mounted Limit Switches W/Appropriate Documentation Can Be Procured.Util Will Replace Switches W/Qualified Switches Prior to Start of Cycle 3 Operation Scheduled for May 1979
Project stage: Other
ML19276F8081979-04-0909 April 1979
Advises That QA Verification of Small & Large Break Loca/Eccs Performance Analysis Has Been Completed.Ltrs to NRC & 790330 Are Sufficient to Show Compliance w/10CFR50.46 Criteria
Project stage: Other
ML20244A5851979-04-12012 April 1979
Forwards Info Re Proposed Revisions to Tech Specs to Reflect Installation of Reactor Coolant Pump Speed Sensing Sys to Provide Protection for 4-pump Loss of Flow Event
Project stage: Other
ML20076A8361979-04-13013 April 1979
Eddy Current Test Has Been Performed.No Tube Defects Discovered & No Corrective Action Based on Tube Defects Required.Preliminary Analysis of Results of Insp Indicates Denting Rate Has Been Reduced
Project stage: Other
ML20076A8431979-04-13013 April 1979
Steam Generator Insp
Project stage: Other
ML20076A9041979-04-18018 April 1979
Responds to IE Bulletin 79-01.One Solenoid Installed on safety-related Valve in Plant Containment Has Not Been Qualified for Svc in LOCA Environ.Solenoid Will Be Replaced Before Start of Cycle 3 Operation
Project stage: Other
ML19270G0861979-04-24024 April 1979
Responds to IE Bulletin 79-07 Re Seismic Stress Analyses of safety-related Piping
Project stage: Other
ML20076A9521979-04-26026 April 1979
Discusses Guide Tube Insp Program.Pull Tests Performed on 35 Sleeves.Evaluation of Data Indicates Sleeves Are Functioning as Expected
Project stage: Other
ML20076A9551979-04-26026 April 1979
Responds to NRC 780419 Request for Insulation Resistance Tests.Forwards Electrical Penetration Testing Evaluation. Modified Conductor Configuration Is Acceptable for Cycle 3 Operation
Project stage: Request
ML19289F4721979-04-30030 April 1979
Responds to IE Bulletin 79-04, Incorrect Weights for Swing Check Valves Mfg by Velan Engineering Corp. Lists Subj Valves Used in Seismic Category I Piping Sys.Investigation Indicates No Drawing Discrepancies Re Valves
Project stage: Other
ML20037A2291979-05-0202 May 1979
Response to NRC Question 2.2 on Cycle 3 Safety Analysis, Nonproprietary Version
Project stage: Other
ML20244A6131979-05-0303 May 1979
Forwards Responses to Request for Addl Info Re Cycle 3 Safety Analysis.Nonproprietary Rept Encl.Proprietary Version Withheld (Ref 10CFR2.790)
Project stage: Request
ML20037A2281979-05-0303 May 1979
Forwards Responses to Request for Addl Info Re Cycle 3 Safety Analysis.Nonproprietary Rept Encl.Proprietary Version Withheld (Ref 10CFR2.790)
Project stage: Request
ML19259C2731979-05-0707 May 1979
Supplements 790507 Response to IE Bulletin 79-07. Safety-related Piping Meets Seismic Sys Criteria
Project stage: Supplement
ML20076B0871979-05-0808 May 1979
Notifies That stem-mounted Limit Switches on Valves SI-614, SI-624,SI-634 & SI-644 Will Not Be Replaced;Valves Do Not Perform safety-related Function
Project stage: Other
ML20076B0881979-05-11011 May 1979
Discusses Results of Six Tasks Which Utilized Adlpipe Computer Program for Reanalysis of Piping Sys.Mods Involved Minor Changes to Small Portions of Existing Sys
Project stage: Other
ML19269E3551979-05-12012 May 1979
Amend 52 to License DPR-65 Authorizing Cycle 3 Operation at 2,560 Mw W/Modified Guide Tubes for Control Element Assemblies
Project stage: Request
ML20076B0891979-05-17017 May 1979
Forwards Addl Info Re Performance of Control Element Assembly Guide Tubed Sleeves,In Response to
Project stage: Other
ML19209B4031979-08-30030 August 1979
Forwards Revised Page 3/4 5-5 to Amend 52 to License DPR-69, Correctly Identifying Valve Number
Project stage: Other
1979-03-02
[Table View] |
Text
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- ;'"=;02"l l=l March 23,1979 Docket No. 50-336 Director of Nuclear Reactor Regulation Attn
Mr. R. Reid, Chief Operating Reactors Branch #4 U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Refe ance:
(1)
B. H. Grier letter to W. G. Counsil dated February 8,1979, forwarding I&E Bulletin 79-01.
Gentlemen:
Millstone Nuclear Power Station, Unit No. 2 I&E Bulletin 79-01 Environmental Qualification of Class lE Equipment In accordance with the reporting requirements of Reference (1), Northeast Nuclear Energy Company (NNECO) is advising the NRC Staff that it has been determined that certain stem-mounted limit switches (SMLS) on safety-related valves in the Millstone Unit No. 2 containment may not be suitable for service in the LOCA environment.
A list of the specitic SMLS types and the valves on which they are installed is attached. Discussions with the manufacturer and evaluations by NNECO and NUSCO have revealed that environmental qualification documentation for the SMLS's identified on the attached page cannot be produced. Further investi-gations are in progress to ascertain the currently qualified capability of these components.
NNECO will address specific corrective actions and a schedule for completion in the detailed written report which will follow in 14 days in accordance with the Reference (1) request. Millstone Unit No. 2 is currently in its second refueling outage and is scheduled to start Cycle 3 operation in May, 1979.
Therefore, justification for continued operation is not applicabic.
Very truly yours, NORTHEAST NUCLEAR ENERGY 0MPANY 7
/
/
/
0h0lA W. G. Counsil Vice President Attachment 790330033%
O
STEM-M0UNTED LIMIT SWITCHES r
VALVE L.S. TYPE QUAN.
RC-001 HV-1064 (SL3C-82) 2 RC-002 HV-1062 (SL3C-B2) 2 RC-003 HV-1060 (SL3C-B2) 2 CH-506 (SL3C-B2) 2 SSP-16 1 HV-9151 (SL3C-B2) 2 LRR-43 1 HV-9015 (SL3C-B2) 2 GR-ll-1 HV-9125 (SL3C-B2) 2 CH-515 EA170-11302 2
CH-516 EA170-11302 2
CH-517 D-2400X 2
CH-518 EA170-11302 2
CH-519 EA170-11302 2
SI-614 EA700-20,000 1
SI-624 EA700-20,000 1
SI-634 EA700-20,000 1
SI-644 EA700-20,000 1
SI-618 D-2400X 2
SI-628 D-2400X 2
SI-638 D-2400X 2
SI-648 D-2400X 2
SI-651 D-2400X 2
SI-652 D-2400X 2
AC-5 HV-8082 EA170-3202 2
AC-6 HV-8125 EA170-3202 2
EB-91 HV-8380 EA740-50,000 2
EA740-60,000 1
EB-100 HV-8378 EA740-50,000 2
EA740-60,000 1
