Semantic search

This page or action requires JavaScript to work. Please enable JavaScript in your browser or use a browser where it is supported, so that functionality can be provided as requested. For further assistance, please have a look at the noscript help page.

Search Clear all entries

	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
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
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
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
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
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
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
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
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
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
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
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
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
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
ML20132G450	8 July 1985	Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)	Forwards Safety Evaluation Re Pcrv Prestressing Tendon Wire Corrosion Problems.Submittals & 0614 Acceptably Resolve Concerns.Lasl Evaluation Rept Encl	Approval
ML20132G476	8 July 1985	Office of Nuclear Reactor Regulation NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)	Safety Evaluation Re Pcrv Tendon Corrosion Investigation & Proposed Remedy.Tendon Surveillance Proposal Acceptable	Approval
ML20235N112	9 July 1987	Office of Nuclear Reactor Regulation Heitner K	Forwards Lasl Technical Evaluation Rept, Technical Assistance for Fort St Vrain Task Ii:Pcrv & Pcrv Tendon Evaluation, Final Rept	Other
ML20154A542	30 August 1988	Office of Nuclear Reactor Regulation Heitner K	Requests Addl Info Re Rev 7 to Schedule Commitment Items on Pcrv Tendon Surveillance Involving Provision of Schedule for Conducting Evaluation within 45 Days for Pcrv Tendon Degradation	Other

Semantic search

Query log

Navigation menu