TAC:59936
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Request for: Approved, Closed | |
Initiation
Questions Answers Results Other: ML20099C963, ML20106B611, ML20112G495, ML20112G517, ML20133E335, ML20135G405, ML20141P237, ML20155G018, ML20212R258, ML20215J636, ML20216J199 | |
From | |
MONTHYEARML20097J8491984-09-13013 September 1984
[table view]Clarifies Re Method to Be Used to Enhance Moisture Removal If Request for Relief from 100 Psia Pcrv Pressure Restriction Granted.Helium Mass Flow Rate Through Circulator Differential Pressure Increased ML20099C9631984-10-29029 October 1984 Ro:On 840911,moisture Discovered in Purified Helium Supply Line Wells During Installation of New Moisture Sensing Probes.Tests Indicate Leak Source Is Circulator Penetration A.Rate of Leak Approx .05 Gpm ML20106B6111985-01-24024 January 1985 Informs That Concern W/Seriousness of Moisture Ingress Events & Other Impediments to Obtaining Realistic Plant Operation Prompted Corporate Mgt to Form Improvement Committee Under Chairmanship of Rf Walker ML20112G5171985-01-24024 January 1985 Responds to HR Denton Identifying Requirement for Development of Plan to Implement Mods Recommended by Moisture Ingress Committee.Improvement Committee Formed to Evaluate Innovative & Substantial Plant Mods ML20112G4951985-03-12012 March 1985 Responds to 850220-22 Requests for Addl Info Re Improvement Committee & Plant Mods Concerning Reduction of Primary Sys Moisture.Historical Background,Review Committee Responsibilities & Description of Helium Issues Encl ML20135G4051985-09-0404 September 1985 Notifies of Mod to Helium Circulator Auxiliary Sys to Mitigate Pcrv Moisture Ingress.Digital Test Valve Removed from Main Drain Sys & Will Not Be Reinstalled ML20133E3351985-09-20020 September 1985 Notifies of Change to One of Mods Provided in Re Helium Circulator Auxiliary Sys.Mod Designed to Mitigate Pcrv Moisture Ingress.Thermal Dispersion Type Flow Elements Removed for Evaluation by Manufacturer ML20141P2311986-03-14014 March 1986 Forwards SER Re Util 860312 Plans for Mods to Facility in Order to Reduce Moisture Ingress Into Reactor Vessel.Design Mods Should Reduce Likelihood of Moisture Ingress ML20141P2371986-03-14014 March 1986 SER Re Util 860312 Plans for Mods to Facility in Order to Reduce Moisture Ingress Into Reactor Vessel.Design Mods Should Reduce Likelihood of Moisture Ingress.Licensee Committed to Conduct Further Studies If Ingress Continues ML20155G0181986-04-0202 April 1986 Forwards Info Re Fort St Vrain Improvement Committee & Actions Taken & Under Consideration to Mitigate Moisture Ingress Into Primary Coolant Sys,Per Util 850312 Commitment ML20216J1991987-02-0404 February 1987 Evaluation of Long-Term Effects of Moisture Ingress in Fort St Vrain Nuclear Reactor ML20212R2581987-04-16016 April 1987 Provides NRC W/Annual Report of Actions Taken by Util or Under Consideration by Util to Mitigate Moisture Ingress Into Primary Coolant Sys,Per Item Iv.A of Encl to ML20215J6361987-06-16016 June 1987 Forwards Advanced Science & Technology Assocs,Inc Rept Re Moisture Ingress at Facility.Agrees W/Subcontractor,Lasl, Conclusions Re Effects of Moisture Inleakage Occurrences Into Prestressed Concrete Reactor Vessel.W/O Encl ML20216J1921987-06-17017 June 1987 Safety Evaluation Re Mods to Reduce Moisture Ingress Into Reactor Vessel.Periodic Insps & Preventive Maint Should Be Performed on Pertinent Components.Operational Performance Should Be Continuously Upgraded ML20216J1841987-06-17017 June 1987 Forwards Safety Evaluation & Rept Re Mods to Reduce Moisture Ingress Into Reactor Vessel.Lasl Recommends Operational Performance Be Upgraded & Reliability of Power Distribution Sys Be Improved to Reduce Frequency of Moisture Ingress 1985-09-04 |
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