TAC:57211
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Other: 05000369/LER-1984-029, :on 841029,concentration of Nitrogen in Upper Head Injection Accumulator Exceeded Tech Spec Limits.Caused by Repetitive Continuous Makeup to Accumulator from Upper Head Injection Surge Tank, 05000369/LER-1984-030, Suppl to LER 84-030:review Revealed Installation Error That Would Result in Failure of Upper Head Injection Accumulator Discharge Valves to Isolate on Low Level.Analysis of Safety Significance & Encl, 05000370/LER-1984-019-01, :on 840820,while Filling & Venting Upper Head Injection Sys,Reactor Vessel Head Sight Glass Failed, Releasing RCS Water Into Containment Bldg.Caused by Design Deficiency.Sight Glass Replaced, 05000370/LER-1984-028, :on 841113,upper Head Injection Hydraulic Sys Alarm Received in Control Room for Train B While Train a Instruments Calibr.Caused by Crossover Connection Between Trains Allowing Pressure Surges, ML19306G616, ML20112G107, ML20126M295, ML20140A539, ML20202E874, NRC-86-3112, Forwards Results of Bart Evaluation Model Large Break LOCA 10CFR50.46 Analysis,Demonstrating Acceptability of upper-head Injection Removal in Support of License Amend. Info Re Sys Behavior W/ & W/O upper-head Injection Encl | |
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MONTHYEAR05000370/LER-1984-019-01, :on 840820,while Filling & Venting Upper Head Injection Sys,Reactor Vessel Head Sight Glass Failed, Releasing RCS Water Into Containment Bldg.Caused by Design Deficiency.Sight Glass Replaced1984-09-19019 September 1984
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05000369/LER-1984-030, Suppl to LER 84-030:review Revealed Installation Error That Would Result in Failure of Upper Head Injection Accumulator Discharge Valves to Isolate on Low Level.Analysis of Safety Significance & Encl1984-12-19019 December 1984 Suppl to LER 84-030:review Revealed Installation Error That Would Result in Failure of Upper Head Injection Accumulator Discharge Valves to Isolate on Low Level.Analysis of Safety Significance & Encl ML20112G1071984-12-20020 December 1984 Forwards Evaluations of Complete Draindown of Upper Head Injection Sys Water Accumulator & Poor Performance of Kerotest Valves for Compliance W/Tech Spec 4.5.1.2c.Channel Calibr Overlapping Surveillance Satisfies Tech Specs ML20126M2951985-07-24024 July 1985 Advises That Addl Info Needed for Plants W/Upper Head Injection (Uhi) Sys to Assess Likelihood of Loss of Uhi auto-isolation Capability.Info Re Demand & Failure Frequencies of Isolation Function Requested within 30 Days ML20136D3301985-12-23023 December 1985 Forwards Response to NRC 851104 Request for Addl Info Re Radiological Aspects of upper-head Injection Removal & Radiological Impacts on Plant Operations.Final Decision Re Disposal Method Expected by Late Jan 1986 ML20140A5391986-03-17017 March 1986 Provides Addl Info Re License Amend Request Concerning upper-head Injection Sys.Bash Large Break LOCA Analyses Replaced w/NRC-approved Bart Analyses.Info from Listed Submittals Still Valid Unless Noted NRC-86-3112, Forwards Results of Bart Evaluation Model Large Break LOCA 10CFR50.46 Analysis,Demonstrating Acceptability of upper-head Injection Removal in Support of License Amend. Info Re Sys Behavior W/ & W/O upper-head Injection Encl1986-03-18018 March 1986 Forwards Results of Bart Evaluation Model Large Break LOCA 10CFR50.46 Analysis,Demonstrating Acceptability of upper-head Injection Removal in Support of License Amend. Info Re Sys Behavior W/ & W/O upper-head Injection Encl ML20202E8741986-04-0808 April 1986 Forwards Addl Info Re Radwaste Expected to Be Generated During upper-head Injection Removal,Per NRC 860407 Telcon ML20203C6371986-04-17017 April 1986 Responds to 860416 Request for Addl Info Re Planned Elimination of Upper Head Injection Sys.Containment Penetration Capping Will Be Performed Per Applicable Codes & Stds & Design Requirements 1984-09-19 | |
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