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MONTHYEARML20117M1211985-04-22022 April 1985
Amends 1,080 Amp/H Ref in to 1,058 Amp/H of Required Battery Capacity to Satisfy Load Profile
Project stage: Other
ML20128P6271985-05-23023 May 1985
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
Project stage: Meeting
ML20133E7491985-05-28028 May 1985
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
Project stage: Meeting
ML20127N6551985-06-14014 June 1985
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
Project stage: Meeting
ML20127N6951985-06-14014 June 1985
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
Project stage: Other
ML20133D0241985-07-0505 July 1985
Safety Evaluation Supporting Emergency Electrical Sys,Per Problems Encountered During 841218 Testing of Emergency Diesel Generator Sets
Project stage: Approval
ML20133C9821985-07-10010 July 1985
Forwards Safety Evaluation Re Facility Emergency Electrical Power Sys.Facility Can Safely Operate for Interim Period W/ Emergency Diesel Generator Single Failure Identified in Evaluation.Nrc Awaiting Addl Info Re FSAR Compliance
Project stage: Approval
ML20132D5561985-07-17017 July 1985
Notice of Deviation from Insp Completed on 850705. Deviation Noted:Automatic Closure of One Emergency Diesel Generator Breaker Dependent on Operation of Components Associated W/Other Emergency Diesel Generator
Project stage: Other
ML20132D5501985-07-17017 July 1985
Discusses Technical Review of Facility Emergency Electrical Power Sys Completed on 850705 & Forwards Notice of Deviation.Safety Evaluation Will Be Forwarded in Near Future.Response to Deviation Requested within 30 Days
Project stage: Approval
ML20134E7521985-08-0909 August 1985
Responds to Re Notice of Deviation on Emergency Electrical Power Sys Independence,Per Undated FSAR Commitment.Evaluation of Postulated Single Failure Points Compromising Diesel Generator Independence Underway
Project stage: Other
1985-06-14
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APPENDIX l
NOTICE OF DEVIATION l
Public Service Company of Colorado Docket:
50-267 i
Fort St. Vrain Nuclear Generating Station License: DPR-34 During a technical review of the Fort St. Vrain emergency electrical power system completed on July 5,1985, a deviation from a commitment was identified. This deviation involved the failure of the emergency electrical power supply to conform to the FSAR.
In accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C (1985), the de'iation is listed below:
1 A.
Section 8.2.5.1 of the Fort St. Vrain Generating Station Final Safety Analysis Report indicates that the AC and DC power systems are redundant and independent and meet the single failure criteria.
In deviation from the above, a technical review conducted by the NRC staff determined that the automatic closure of one emergency diesel generator breaker is dependent on the operation of components associated with the other emergency diesel generator.
1 In accordance with Appendix C to 10 CFR Part 2, Public Service of Colorado is requested to provide within 30 days a written explanation or statement describing corrective steps taken (or planned), the results achieved, and the date when corrective action will be completed.
Dated at Arlington, Texas, this n W day of %
,1985.
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