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Issue date | Title | Topic | |
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05000369/LER-1982-019 | 30 March 1982 | LER 82-019/03L-0:on 820228,during Mode 4,performance of RCS Pressure Isolation Valve Leak Rate Test Determined That 3 Valves Failed Test.Caused by Failure of Valves to Seat Properly.Valves Disassembled & Repaired | |
05000369/LER-1982-037 | 30 June 1982 | LER 82-037/03L-0:on 820513,while in Mode 1,performance of Nuclear Air Cleaning Sys Air Flow Measurement Periodic Test Revealed That Train a of Annulus Ventilation Sys Failed to Meet Flow Acceptance Criteria.Caused by Component Failure | |
05000369/LER-1982-041 | 30 June 1982 | LER 82-041/03L-0:on 820513,HEPA & Carbon Absorber Filters Periodic Test Revealed That Carbon Absorber Filter on Train a of Annulus Ventilation Sys Failed to Pass Halogenated Hydrocarbon Penetration Test.Caused by Dirt in Filter | |
05000369/LER-1982-042 | 30 June 1982 | LER 82-042/03L-0:on 820519,HEPA & Carbon Filters Periodic Test Revealed That HEPA after-filters on Train B of Annulus Ventilation Sys Failed to Pass Dioctyl Phthalate Penetration Test.Caused by Dirt in Filter | |
05000369/LER-1982-043 | 30 June 1982 | LER 82-043/03L-0:on 820520,HEPA & Carbon Absorber Filters Periodic Test Indicated Carbon Absorber Filter on Fuel Pool Ventilation Sys Failed to Pass Freon Penetration Test. Caused by High Humidity.Filters Replaced | |
05000369/LER-1982-044 | 30 June 1982 | LER 82-044/03L-0:on 820526,HEPA & Carbon Adsorber Filters Periodic Test Revealed That Auxiliary Bldg Ventilation Sys Filters Failed to Pass Total DOP Penetration Test.Caused by Vibration | |
05000369/LER-1982-045 | 30 June 1982 | LER 82-045/03L-0:on 820527,HEPA & Carbon Adsorber Filters Periodic Test Revealed That Carbon Adsorber Filters on Auxiliary Bldg Ventilation Sys Failed to Pass Freon Penetration Test.Caused by Carbon Settlement | |
05000369/LER-1984-024, Revised Page 6 to LER 84-024-01,providing Corrective Actions.Relay House Emergency Lighting Improved,Operating & Maint Activities Reviewed for Potential Impact on Offsite Power & Switchyard Computer Will Be Replaced by Mar 1988 | 9 November 1984 | Revised Page 6 to LER 84-024-01,providing Corrective Actions.Relay House Emergency Lighting Improved,Operating & Maint Activities Reviewed for Potential Impact on Offsite Power & Switchyard Computer Will Be Replaced by Mar 1988 | Emergency Lighting |
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 | 19 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 | Stroke time |
AECM-83-0600, Updated RO 83-067/1:on 830819,accelerographs Used for Seismic Monitoring Discovered Damaged Due to over-ranging. Instrument on HPCS Spray Line Replaced 830713.LPCS Spray Line Instrument Replaced 830713 | 23 September 1983 | Updated RO 83-067/1:on 830819,accelerographs Used for Seismic Monitoring Discovered Damaged Due to over-ranging. Instrument on HPCS Spray Line Replaced 830713.LPCS Spray Line Instrument Replaced 830713 | |
B14544, Update to 900827 Rept of Substantial Safety Hazard Re GE Custom 8000 Horizontal Induction Motors,Reported Per 10CFR21 for Unit 3.Util Has Determined,As Part of Review of in 91-007 That Subj GE Motors Also Used at Units 1 & 2 | 11 August 1993 | Update to 900827 Rept of Substantial Safety Hazard Re GE Custom 8000 Horizontal Induction Motors,Reported Per 10CFR21 for Unit 3.Util Has Determined,As Part of Review of in 91-007 That Subj GE Motors Also Used at Units 1 & 2 | |
ET-NRC-92-3707, Part 21 Rept Re Degraded Performance Condition of Westinghouse Protection Sys Overtemp Delta Temp Reactor Trip Function.Issue Not Reportable,Per 10CFR21,based on Diversity of Westinghouse Protection Sys,Per WCAP-7306 | 15 June 1992 | Part 21 Rept Re Degraded Performance Condition of Westinghouse Protection Sys Overtemp Delta Temp Reactor Trip Function.Issue Not Reportable,Per 10CFR21,based on Diversity of Westinghouse Protection Sys,Per WCAP-7306 | |
ML17303B182 | 30 December 1986 | LER 86-058-01:on 861111 & 18,overtemp Delta T Reactor Trip Occurred on Increasing Reactor Coolant Temp Rate.Caused by Spike on Potentiometer.Valve Realigned & Unit Returned to Previous status.W/861230 Ltr | |
ML17348A162 | 27 March 1990 | Part 21 Rept Re Matls W/Programmatic Defects Supplied by Dubose Steel,Inc.Customers,Purchase Order,Items & Affected Heat Numbers Listed | |
ML18010A952 | 30 November 1992 | NRC Licensing Submittal Review of Licensing Conditions Imposed by NUREG-1216. | Nondestructive Examination Liquid penetrant |
ML18010B084 | 5 May 1993 | NRC Licensing Submittal Review of Licensing Conditions Imposed by NUREG-1216. | Safe Shutdown Boric Acid Shutdown Margin Loop seal Stroke time Temporary Modification Intergranular Stress Corrosion Cracking Stress corrosion cracking Liquid penetrant Overspeed trip Loss of condenser vacuum |
ML18016A901 | 12 April 1999 | Part 21 Rept Re Defect in Component of DSRV-16-4,Enterprise DG Sys.Caused by Potential Problem with Connecting Rod Assemblies Built Since 1986,that Have Been Converted to Use Prestressed Fasteners.Affected Rods Should Be Inspected | |
ML19208A795 | 20 August 1979 | Interim Deficiency Rept Re Steam Generator Water Level Measurement Sys Errors.Westinghouse Pursuing Resolution on Generic Basis for Plants Under Const.Westinghouse Ltr Re Substantial Safety Hazard Encl | |
ML19241A752 | 22 June 1979 | Deficiency Rept:Present Rod Controller Is Less Conservative than Assumed in Safety Analysis & Could Lead to DNB Reduction Below Min Design Value.Revised Setpoint Will Be Included in Tech Specs | Rod Drop Event |
ML19242D199 | 21 June 1979 | Significant Deficiency 79-1:during Installation of Equipment on Section of Main Control Board,Deficient Skip Weld of Wire Duct Detected.Investigation Revealed 60 Improper Welds.All Welds Will Be Repaired by 790629 | |
ML19249E106 | 7 September 1979 | Deficiency Rept Re Depressurization Cases of Multiple Steam Generators Which,Combined W/Most Limiting Single Failure, Will Increase Auxiliary Feedwater Sys Flow to Extent That Pump Runout Occurs,Causing Negative Suction Pressure | |
ML19249E119 | 31 August 1979 | Deficiency Rept SD 369-370/79-06:holes for Mounting Personnel Air Lock Door Seals Improperly Drilled.All Bolt Holes Will Be Inspected for Penetration Depth,Thread Condition,Thread Depth & Perpendicularity | |
ML19249E123 | 7 September 1979 | Deficiency Rept SD 369-370/79-08:noted That Modulating Control Valves Would Not Go to Safe Position Upon Loss of Air When Control Grade Positioners,Solenoids & Instrumentation Are Applied.Solenoid Valves to Be Added | |
ML19249E814 | 24 August 1979 | Interim Deficiency Rept Re Steam Generator Water Level Measurement Sys Errors.Final Rept Will Be Forwarded Upon Completion of Generic Investigation Underway by Westinghouse | |
ML19249E819 | 24 August 1979 | Significant Deficiency Rept Re Barton Differential Pressure Transmitter Inaccuracy.Seven Barton Lot 1 Differential Pressure Transmitters Having Potential Positive Inaccuracies in Excess of 10% Will Be Returned to Manufacturer | |
ML19253C424 | 30 November 1979 | Suppl 1 to Deficiency Rept 369-370/79-06 Re Personnel Air Lock Door Seal Problem.Submits Details on Corrective Actions Taken.Actions for Unit 1 Will Be Completed & Personnel Air Lock Door Seals Reinstalled by 800130 | |
ML19253C448 | 29 November 1979 | Deficiency Rept,Sd 369-370/79-11 Re Westinghouse 7300 Series Process Comparator Card Technical Problems.Caused by Design Deficiencies.Insp of Cards Conducted & Cards Being Repaired. Corrective Actions to Be Completed by 800430 | |
ML19254E999 | 7 September 1979 | Interim Deficiency Rept Re Failure of Modulating Control Valves to Revert to Safe Position Upon Loss of Air Following Seismic Event.Final Rept Will Be Filed by 791007 | |
ML19254F246 | 12 October 1979 | Significant Deficiency Rept 79-09:34 safety-related Valves Discovered to Have Commercial Grade Electric Motor Operators.Caused by Improper Procurement Due to Deficient Definition of Valve Applications.Operators Will Be Replaced | Commercial Grade |
ML19256B819 | 30 June 1979 | Revised Response to Branch Technical Position,Auxiliary & Power Conversion Sys Branch,9.5-1 App a Re Fire Protection Review | Safe Shutdown Boric Acid Ultimate heat sink Fire Barrier Coatings Emergency Lighting Fuel cladding Fire Protection Program Fire Watch Early Warning Fire Detection Scaffolding |
ML19256F003 | 8 November 1979 | Significant Deficiency Rept 369-370/79-10:on 791108,some safety-related Mechanical & Electrical Equipment in Doghouse Area Outside Containment Not Environmentally Qualified. Caused by Feedwater or Steam Line Break | |
ML19256F352 | 13 December 1979 | Final Deficiency Rept Re Deficient Weld in Steam Generator Lower Lateral Support.In June 1979,pinhole Discovered in Weld Preparation Area.Reinsp Showed Three Addl Rejectable Indications.Part Returned for Repair | Earthquake |
ML19256F649 | 30 November 1979 | Significant Deficiency Rept 369-370/79-06,suppl Re Personnel Air Lock Door Seals.All Penetrating Bolt Holes & Holes Deviating from Perpendicular Re More than 3 Degrees Were Plugged,Drilled & Tapped.Action Completed by 800131 | |
ML19257A019 | 26 December 1979 | Significant Deficiency Rept IE-79-05-SDD-413/414.Main Steam Power Operated Relief Valves Not Qualified for Expected Environ Resulting from Feedwater or Steam Line Break.Valves Will Be Qualified | |
ML19257D830 | 16 January 1980 | Significant Deficiency Rept SD-369/370-79-14:on 790116, During Prototype Testing,Isolation Block Valve Failed to Fully Close Under Design Flow Conditions.Caused by Manufacturer Error in Determing Size of Valve Operator | |
ML19260D047 | 1 February 1980 | Deficiency Rept SD 413-414/80-01 Re Faulty Connections in Electrical Equipment.Probability of Redundant Equipment Being Affected Is Minimal.All Electrical Ctrs & Equipment Will Be Inspected | |
ML19276G925 | 10 August 1979 | Final Deficiency Rept IE-77/03-5PS-413/414 Re Potential Malfunction of safety-related Butterfly Valve Operators Used in Containment Isolation Valves.Valves Have Been Tested & Operator Support Brackets Redesigned | |
ML19289B218 | 15 September 1982 | Monthly Operating Rept for Aug 1982 | |
ML19289B221 | 15 April 1982 | Corrected Monthly Operating Rept for Mar 1982 | |
ML19289B222 | 15 June 1982 | Corrected Monthly Operating Rept for May 1982 | |
ML19289B223 | 15 July 1982 | Corrected Monthly Operating Rept for June 1982 | |
ML19289B224 | 13 August 1982 | Corrected Monthly Operating Rept for Jul 1982 | |
ML19291C280 | 16 January 1980 | Deficiency Rept 79-07:on 800116,during Prototype Testing, Isolation Block Valve Failed to Fully Close Under Design Flow Conditiions.Cause by Manufacturer Error in Determining Size of Valve Operator.Valve Operator Will Be Modified | Safe Shutdown |
ML19294B483 | 4 January 1980 | Significant Deficiency Rept SD-369/370/79-12:on 800104, Resistance Temp Detector Had Insufficient Qualification Data for Radiation Levels Postulated in Containment During Accident Condition | |
ML19295A618 | 19 September 1980 | Part 21 Rept Re Potential Defect in Component of Dsrv Standby Diesel Generator Concerning Link Rod Assembly Which Could Result in Engine Failure.Defect Limited to Models Dsrv 12,DSRV 16 & Dsrv 20 Built Before Feb 1980 | |
ML19296B763 | 10 January 1980 | Significant Deficiency Rept 369-370/79-13:investigation of Cable Connection Failure Revealed Improper Insulation Stripping by Nelson Electric Co,Possibly Resulting in Equipment Failure.All Related Equipment Will Be Inspected | |
ML19296D513 | 11 February 1980 | Part 21 Rept:On 800131,util Telephoned Rept to Region 2 of Potential Problem in safety-related Overcurrent Relays. Component,sodium-cooled Reactor,Within Overcurrent Relay Failed,Causing Circuit Breaker to Open | |
ML19296D626 | 7 March 1980 | Significant Deficiency Rept Re Discovery of Diesel Generator Heat Exchanger Incorrect Segmental Baffling on Engineering Drawing.Cause Not Stated.Heat Exchangers Shipped to Manufacturer for Baffle Replacement | |
ML19305B803 | 17 March 1980 | Offsite Dose Calculation Manual | Offsite Dose Calculation Manual Uranium Hexafluoride |
ML19308A788 | 2 April 1975 | Annual Financial Rept 1974 |