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	Issue date	From	Title	Project stage
ML20083M935	12 April 1984	Xcel Energy Warembourg D	Discusses Problems W/Pcrv Prestressing Sys & Resultant Insp Test Results.Liftoff Tests Show Tendon Sys Operable.Nrc Permission to Return to Power Operation from Present Refueling Outage Requested by 840418	Other
ML20084C589	16 April 1984	Xcel Energy Warembourg D	Provides Advance Notification of Intent to Propose Tech Spec Changes to Circulation speed-high Trip Setting Listed in Table 4.4-3 & Surveillance Requirement SR 5.3.7 for Secondary Coolant Monitoring	Other
ML20084H457	25 April 1984	Xcel Energy Warembourg D	Forwards Relaxation Curves for Prestressed Concrete Reactor Vessel Tendon Sys,In Response to 840419 Request.No Immediate Mechanism for Controlling Sleeve Atmosphere Provided.Areas W/Indicated Corrosion Regreased	Other
ML20084P594	7 May 1984	Xcel Energy Warembourg D	Forwards Pcrv Tendon Sys Relaxation Curves Containing Min Design Lines,Per H Polk 840503 Telcon Request	Other
ML20084Q444	10 May 1984	Xcel Energy	Proposed Tech Spec Table 4.4-3, Instrument Operating Requirements for Plant Protective Sys,Circulator Trip. Significant Hazards Considerations Encl	Other
ML20084Q436	10 May 1984	Xcel Energy Lee O	Application to Amend License DPR-34,revising Tech Specs to Change Circulator speed-high Steam Trip Setting.Change Would Increase Circulator Availability While Providing for Initiation of Protective Actions	Request
ML20084Q422	10 May 1984	Xcel Energy Lee O	Forwards Application to Amend License DPR-34,revising Tech Specs to Change Circulator speed-high Steam Trip Setting (Table 4.4-3).Change Would Increase Circulator Availability While Providing for Initiation of Protective Actions	Request
ML20092D927	15 June 1984	Xcel Energy Warembourg D	Responds to Requesting Details of Proposed Tendon Surveillance Program.Program Consists of Load Cell Data & Visual Insps.Surveillance Started on 840601.Program Developed Using Reg Guide 1.35 as Ref	Other
ML20092P626	26 June 1984	Xcel Energy Lee O	Confirms Util Commitment to Fully Investigate 840623 Event in Which Six Control Rod Pairs Failed to Insert Into Core Under Automatic Velocity Limited free-fall Sys.Nrc Approval of Resolutions Will Be Obtained Prior to Reactor Startup	Other
ML20090C526	6 July 1984	Xcel Energy Lee O	Responds to NRC Concerns Re Fire Protection Review,Bldg 10 Licensing Requirements,Control Rod Failure to Scram, Documentation of Disciplinary Actions,Clearance Tags & Radiological Emergency Exercise Scenario,Per 840625 Meeting	Meeting
ML20094D774	18 July 1984	Xcel Energy Lee O	Informs of Control Rod & CRD Insp & Testing in Response to NRC 840709 Insp.Major Power Consumption & Scram Verification of All 37 CRD & Orifice Assemblies Completed & Insp Underway.Plan for Further Action Described	Other
ML20093J117	20 July 1984	Xcel Energy Lee O	Forwards Rev 2 to Updated FSAR for Fort St Vrain.Rev Includes Safety Evaluations Either in Support of License Amends or in Support of Conclusions That Changes Did Not Involve Unreviewed Safety Question	Request
ML20094R400	9 August 1984	Xcel Energy Warembourg D	Confirms 840806 Telcon on Tech Spec Change Request Re Tendon Corrosion & Anchor Assembly Surveillance.Tech Spec Change Request Will Be Submitted by 840930	Other
ML20096C908	20 August 1984	Xcel Energy Warembourg D	Responds to Re Possible Design Mods to Pcrv Tendons & Details of Evaluations & Schedule of Completion of Repts Detailing Results of Metallurgical Exams.Actions Necessary to Evaluate Design Mods for Pcrv Listed	Other
ML20096C032	21 August 1984	Xcel Energy Lee O	Provides Findings & Positions Re Investigation of 840623 Failure of Six Control Rods to Automatically Insert Upon Scram.Summary of Work on Four CRDs & Description of Tests Encl.Corrective Actions Listed	Other
ML20098B305	7 September 1984	Xcel Energy Gahm J	Ro:On 840904,while Removing CRD & Orifice Assembly,Motor Overcurrent Condition on Auxiliary Transfer Cask Shutters Occurred,Preventing Full Closure.Caused by One Control Rod String Not Fully Retracted.Work Temporarily Discontinued	Other
ML20093K194	24 September 1984	Xcel Energy Gahm J	Submits Info Re Status of Damaged Control Rod Removal on Fuel Deck.Related Info Encl.Possibly Caused by Absorber Strings Not Fully Retracted,Despite Full Retract Limit Switch Indication	Other
ML20107K230	18 October 1984	Xcel Energy Warembourg D	Updates Tendon Investigations & Corrosion Prevention Programs.Efforts Concentrated on Corrosion Prevention Methods Rather than Detailed Moisture Measurements	Other
ML20099K727	8 November 1984	Xcel Energy Gahm J	Provides Status of Control Rod Drive & Orificing Assembly (Crdoa) Refurbishing Efforts.Further Investigation of Crdoa Determined That Cause of Inability of Absorber String to Fully Retract Was Cable Failure	Other
ML20112D736	14 December 1984	Xcel Energy Warembourg D	Forwards Tendon Accessibility Info,Rationale for Tendon Surveillance & Info Re Corrosion Mechanism in Response to 840720 & 1029 Requests for Addl Info.Tendons Considered Acceptable If No Major Mods Necessary	Other
ML20112C049	27 December 1984	Xcel Energy Lee O	Responds to NRC 841025 Request for Addl Info Re 840510 Application for Amend to License DPR-34,revising Tech Spec Re Helium Circulators Overspeed Trip Setpoint.Analysis Value Encl	Request
ML20112G506	4 January 1985	Xcel Energy Lee O	Forwards Status of Planned Audit Response to NRC July 1984 Audit of Plant Operations,Per Denton .Repts Covering Technical Details of Listed Subjs Will Be Provided by 850131,per 841128 & 29 Meetings	Meeting
ML20106B531	25 January 1985	Xcel Energy Brey H	Advises That Util Will Perform Turbine Load Rejection from Full Load Test at End of Cycle 4.Tech Spec Amend Will Be Submitted	Other
05000267/LER-1984-008, Forwards Addl Info Re Three CRDs & Orifice Assemblies That Failed to Scram During in-core back-EMF Testing,Per 850122 Telcon.Suppl to LER 84-008 Will Be Provided	28 January 1985	Xcel Energy Brey H	Forwards Addl Info Re Three CRDs & Orifice Assemblies That Failed to Scram During in-core back-EMF Testing,Per 850122 Telcon.Suppl to LER 84-008 Will Be Provided	Other
ML20106B613	31 January 1985	Xcel Energy Warembourg D	Discusses Visual Insp of Top Longitudinal Tendons,Per 850115 Meeting Request.Visual Insp of 30% of Longitudinal Tendons for Buttonheads Noted.Inconsistency Exists Between Last Mapping of Raised Buttonheads & Current Insp Results	Meeting
ML20106B579	31 January 1985	Xcel Energy Gahm J	Submits Plans for Implementing Interim Tendon Surveillance Program,In Response to Concerns.Surveillance Program Will Be Based on Proposed Tech Spec SR 5.2.2,submitted in DW Warembourg	Other
ML20106B533	31 January 1985	Xcel Energy Warembourg D	Forwards Investigation Into Sources of Chloride in Fort St Vrain Primary Circuit. Rept Re Investigations of Effects of Chlorides on Major Components in Primary Circuit Will Be Sent by 850228	Other
ML20132G502	12 March 1985	Bennett D LOS ALAMOS NATIONAL LABORATORY Fly G Fugelso L	Evaluation of CRD Mechanism & Reserve Shutdown Sys Failures & Pcrv Tendon Degradation Issues Prior to Fort St Vrain Restart	Other
ML20112G463	18 March 1985	Xcel Energy Warembourg D	Forwards Ga Technologies,Inc Rept 907838, Investigation Into Sources of Chloride in Fort St Vrain Primary Circuit, Re Effects of Chloride on Major Components in Primary Circuit.Final Review & Clearance to Be Forwarded by 850326	Other
ML20100H112	26 March 1985	Xcel Energy Warembourg D	Forwards Evaluation of Fort St Vrain Metallic Components Exposed to Primary Coolant Chloride Contamination, Per 850318 Commitment	Other
ML20117M121	22 April 1985	Xcel Energy Warembourg D	Amends 1,080 Amp/H Ref in to 1,058 Amp/H of Required Battery Capacity to Satisfy Load Profile	Other
ML20117M059	26 April 1985	Xcel Energy Singleton L	Expresses Appreciation for Opportunity to Discuss Quality Aspects of CRD & Orifice Assembly (Crdoa) Refurbishment Program on 850424 in Arlington,Tx.Discusses 850418 Audit to Confirm 18 Crdoas Completed W/High Quality	Other
ML20132C978	17 May 1985	Office of Nuclear Reactor Regulation	Safety Evaluation Re CRD Instrumentation	Approval
ML20128N286	20 May 1985	Xcel Energy Warembourg D	Informs of Intent to Conduct Addl Insps of Random Sample of Pcrv Bottom Head Longitudinal Tendon Anchor Assemblies. Thirty-four Longitudinal Bottom End Caps Accessible.Ten End Caps Will Be Removed & Inspected	Other
ML20126B629	20 May 1985	Xcel Energy Brey H	Responds to Commitment Log Item CL-1055 Re Verification of Operability of Surge Diodes on CRD Brake & Limit Switch Relays.Diodes & Functions Listed.Action Request DCAR-704 Initiated to Provide Relocation of Diodes	Other
ML20128P627	23 May 1985	Office of Nuclear Reactor Regulation Heitner K	Summary of 850516 Meeting W/Util Re Emergency Electrical Power Sys Concerns Resulting from Staff Evaluation of Problems from Testing Emergency Diesel Generators on 841218. Justification for Continued Operation Requested	Meeting
ML20126C521	23 May 1985	Xcel Energy Warembourg D	Discusses Investigation of Methods to Control Tendon Corrosion Involving Establishment of Nitrogen Blanket on Pcrv Tendon Sys.Establishing & Maintaining Overall Nitrogen Blanket Sys for Tendons Highly Questionable	Other
ML20133E749	28 May 1985	Office of Nuclear Reactor Regulation Lainas G	Requests Interim Evaluation Re Acceptability of Automatic & Manual Control of Emergency Electrical Power Sys by 850607, Per 850516 Meeting W/Util.Summary of Meeting Encl.W/O Encl	Meeting
ML20127K137	7 June 1985	Xcel Energy Warembourg D	Discusses Insp of 10 Bottom Longitudinal Tendon End Caps. Tendons Visually & Magnetic Particle Inspected for Evidence of Corrosion,Concavity,Water,Apparent Failures & Cracking.No Raised Buttonheads Found.All Tests Negative	Other
ML20127K637	7 June 1985	Xcel Energy Lee O	Forwards Interim Tech Specs for Control Rods for Use During Plant Startup.Specs Describe Program to Assure Control Rod & Reserve Shutdown Sys Reliability.Operating Limit of 250 F Max on Control Rod Motor Temp Anticipated	Other
ML20127J822	7 June 1985	Xcel Energy Warembourg D	Informs of Acceptability of Devcon 5-minute Epoxy for Use in Cementing Resistance Temp Detector Temp Sensors to CRD Cavity & Motor,Based on Test & Inservice Exposure of Epoxy to High Temps	Other
ML20127L885	13 June 1985	Xcel Energy Warembourg D	Forwards Results of Engineering Evaluation of Design Changes Introduced in CRD & Orifice Assembly Bearings.Physical Comparison Testing of Original & Replacement Shim Motor Bearings Underway to Establish Operating/Design Margins	Other
ML20127N655	14 June 1985	Xcel Energy Warembourg D	Responds to Concerns Raised During 850516 Meeting in Bethesda,Md Re Review of Emergency Electric Power Sys. Response Addresses Independence of Redundant Emergency Power Trains,Rapid Transfer Sys Testing & Switchgear Control Sys	Meeting
ML20127N695	14 June 1985	Xcel Energy Brey H	Elaborates on Util Commitments to Listed Plant Activities, Including CRD Mechanism Temp Recording,Requalification, Surveillance & Preventative Maint,Backup Reactor Shutdown Procedure,Tendons & Pcrv Integrity & Electrical Sys	Other
ML20209E899	25 June 1985	Xcel Energy Lee O	Discusses Status of CRD & Orificing Assembly (Crdoa) Refurbishment Efforts.First 37 Crdoas Refurbished & Installed.Summary of Design Changes & Test Results Encl	Other
ML20132C948	1 July 1985	INC. EG&G IDAHO Barnes B	Evaluation of CRD Orifice Assembly Bearing Rept from Public Svc Co of Co	Other
ML20138A807	2 July 1985	Thompson H Office of Nuclear Reactor Regulation	Forwards Updated Safety Evaluation Accepting Util Commitments Re Tendon Surveillance as Basis for Restart. Util Will Incorporate Modified Tendon Surveillance Program Into Tech Specs & Provide Results 6 Months After Restart	Approval
ML20138A855	2 July 1985	Office of Nuclear Reactor Regulation	Safety Evaluation Accepting Util Tendon Surveillance Proposal.Proposal Will Lead to Maintaining Structural Integrity of Reactor Vessel.Plant Structurally Ready for Restart	Approval
ML20132E623	3 July 1985	Xcel Energy Lee O	Forwards Interim Tech Specs for Reactivity Control Sys.Tech Specs Will Provide Basis for Program to Assure CRD & Reserve Shutdown Sys Reliability.Specs Include Change to Criteria for Insertion of Reserve Shutdown Matl	Other
ML20133D024	5 July 1985	Office of Nuclear Reactor Regulation	Safety Evaluation Supporting Emergency Electrical Sys,Per Problems Encountered During 841218 Testing of Emergency Diesel Generator Sets	Approval

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