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Issue date | Title | Topic | |
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05000498/LER-1992-007, Errata to LER 92-007-00:on 920710,correcting Typo on Page 3 of 920807 Initial Submittal,Revising Cause of Vent to Cause of Event | 7 August 1992 | Errata to LER 92-007-00:on 920710,correcting Typo on Page 3 of 920807 Initial Submittal,Revising Cause of Vent to Cause of Event | |
05000499/LER-1993-013 | 17 August 1993 | LER 93-013-00:on 930719,Train B CCW Pump 2B Received Automatic Actuation Signal from non-nuclear Supply Header Low Pressure Signal Due to Less than Adequate Plant Impact review.M0V-0236 repaired.W/930817 Ltr | |
ML17193A301 | 18 February 1980 | Final Deficiency Rept Re Concrete Voids Behind Liner Plate in Lift 8 of Reactor Bldg Exterior Wall.Const & Insp Procedures & Engineering Design Documents Revised | |
ML17352B258 | 25 March 1994 | LER 94-007-00:on 940224,station Procedure for Testing Reactor Trip Bypass Breakers Did Not Satisfy Ts.Caused by Inadequate Procedure Preparation & Review.Surveillance Procedure Enhancement Program underway.W/940325 Ltr | |
ML19209D119 | 15 August 1979 | Interim Deficiency Rept Re Concrete Voids in Eighth Lift of Unit 1 Reactor Containment Bldg.Deficiency Will Be Closed Out by 800119.Final Rept Will Be Submitted within 30 Days | |
ML19210D643 | 21 November 1979 | Interim Deficiency Rept Re Safety Injection Sys Piping. Weld Between Sump Liner & Process Pipe Found Insufficient to Carry Design Loads During Routine Design Review.Design Investigation Underway to Correct Problem | |
ML19225D140 | 30 July 1979 | Final Deficiency Rept Re Threads in field-fabricated Anchor Bolts.Incident Determined to Be Nonreportable,Based on Site Dimensional Insp Results | |
ML19242D881 | 15 August 1979 | Interim Deficiency Rept Re Concrete Voids Behind Liner Plate in Eighth Lift on Reactor Bldg Exterior Walls.Addl Soundings Will Be Made in Three General Penetration Areas of High Stress Regions & Congestion | |
ML19253B597 | 9 October 1979 | Final Interim Deficiency Rept Re Failure to Properly Include Effects of Tornado Wind Loadings on Essential Cooling Water Gantry Crane.Crane Rails Will Be Extended to Park & Locked in Event of Tornado Weather Conditions | |
ML19259C134 | 15 June 1979 | Final Deficiency Rept on 781020:15th Lift Concrete Voids. Caused by Inadequate Planning for Large Pour,Long Pour Time, Longer than Normal Slick Lines & Concrete Pump Breakdowns. Immediate & long-term Corrective Actions Have Been Effected | |
ML19260B177 | 31 December 1978 | Annual Financial Rept 1978 | |
ML19262C622 | 31 December 1979 | Third Interim Rept Concerning Improper Anchor Bolt Matl. Caused by Failure of Const Quality Procedures to Require QC Personnel to Verify Correctness of Info on Matl Requisitions.Stop Work Order Issued to Change Procedures | |
ML19270G526 | 5 June 1979 | Final Deficiency Rept on 781025:beam-to-column Connections.Caused by Human Error & Inadequate Procedural Training.Beams Have Been Reanalyzed,Errors Corrected & Calculations Design Verified | |
ML19276C788 | 28 September 1984 | Final Deficiency Rept Re Potential Superheated Steam Conditions Following Main Steam Line Break Outside Containment.Initially Reported on 840809.Deficiency Not Reportable Per 10CFR50.55(e) | Safe Shutdown |
ML19282B960 | 8 March 1979 | on 790205 Util Notified NRC of Potentially Reportable Deficiency Re Installation of Anchor Bolts Mfg from Improper Matl by Brown & Root.Caused by Failure of QC Personnel to Verify Requisitions | |
ML19290E608 | 28 January 1980 | Interim Deficiency Rept Re Installation of Deficient Anchor Bolts.Bolts Were Made of Lesser Grade Matl than Required by Design Drawings.Matl for Type V Anchor Bolts Replaced by Higher Strength Matl | |
ML19296C361 | 29 October 1979 | Final Deficiency Rept:On 781004,util Notified NRC of Dimensional Error in Basemat Const of mechanical-electrical Auxiliary Bldg.Caused by Calculational Error & Lack of Proper Supervision.Interior Space Altered Via Bldg Redesign | |
ML19296C601 | 18 February 1980 | Final Deficiency Rept Re Concrete Voids in Eighth Lift of Unit 1 Reactor Bldg Exterior Wall.Concrete Voids Repaired & Full Implementation of Recurrence Control Is Complete | |
ML19305A130 | 27 December 1978 | Interim Rept on Structural Steel Design Deficiency.Interior Structural Steel Beams Design by Brown & Root Fails to Consider Certain Postulated Loads.Only 1 Case Requires Addl Structural Members | |
ML19305B040 | 4 January 1980 | Final Deficiency Rept Re Inadequate Brown & Root QA Program. Investigations Have Commenced,W/Assistance Provided to Supplier in Review & Reconst of Welder Certification Records | |
ML19305C388 | 19 March 1980 | Second Interim Deficiency Rept Re Safety Injection Sys Containment Emergency Sump Piping Design.Redesign of Piping Sys in Progress.Final Rept Submitted by 800530 If Alternative Re Anchoring Process Pipe Found Acceptable | |
ML19309E098 | 9 April 1980 | Final Deficiency Rept Re Voids Detected Under Crossover Leg Embed Plates.Evaluation Shows That Condition Would Not Affect Safety of Plant,Therefore Not Reportable Per 10CFR50.55(e) | |
ML19309E122 | 11 April 1980 | Deficiency Rept Re Unqualified Motor Operator for Trip & Throttle Valve of Turbine Driven Auxiliary Feedwater Pump. Defective Motor Operators Will Be Replaced W/Ie Qualified Pumps Mfg by Terry Corp,Prior to Plant Startup | |
ML19309E123 | 10 April 1980 | Interim Deficiency Rept Re Welds in Essential Cooling Water Sys.Methods to Verify Integrity of Weld Joints Are Being Evaluated.Second Interim Rept Will Be Submitted by 800613. Oversize Drawing Indicating Weld Locations Encl | |
ML19309F392 | 16 April 1980 | Interim Deficiency Rept Re Broken tie-down Studs in Unit 1 Polar Crane Rail.Caused by Welding W/Low Range Parameters. Encl Plan Issued for Insp & Testing of Selected Studs & Associated Plates.Failures Examined by Stud Supplier | |
ML19309H925 | 15 May 1980 | Interim Deficiency Rept Re Stop Work Order on safety- Related & Code Welding.Caused by Inadequate Program Definition.Long & short-range Actions Undertaken.List of Audit Findings & Concerns Encl | |
ML19312E816 | 25 April 1980 | Advises That Potential Deficiency Re Excessive Hydrostatic Pressure Under Essential Cooling Pond Does Not Meet Criteria of 10CFR55(e) | Hydrostatic |
ML19316B111 | 30 May 1980 | Final Deficiency Rept Re Safety Injection Sys Containment Emergency Sump Piping Design.During Routine Review, Discovered Weld Between Sump Liner & Process Pipe Insufficient.Design Corrected & Procedures Revised | |
ML19316B121 | 30 May 1980 | Interim Deficiency Rept Re Nonconforming Backfill Matl Areas Around Unit 2 Power Block.Borings Into Structural Backfill Showed Unit 1 Area in Conformance.Four Areas within Unit 2 Found Potentially Below QC Criteria.Boring Diagram Encl | |
ML19318A219 | 7 May 1980 | Notifies NRC That 800411 Final Part 21 Rept Re Unqualified Motor Operator for Turbine Driven Auxiliary Feedwater Pump Was Also Intended to Satisfy 10CFR50.55(e) Reporting Requirements | |
ML19318A865 | 13 June 1980 | Second Interim Deficiency Rept Re Essential Cooling Water Sys Girth Weld Radiograph Rejectable Indications.Deficiency Will Be Addressed in Util Response to Show Cause Order.Next Rept Will Be Submitted 800912 | |
ML19318C017 | 26 June 1980 | Interim Deficiency Rept Re Seismic Qualification of Essential Cooling Water Intake Structure Gantry Crane & Diesel Generator Fuel Oil Storage Tank.Preliminary Findings Show Designs Sufficiently Conservative.Mods Not Expected | Safe Shutdown Earthquake Earthquake |
ML19318D079 | 23 June 1980 | Second Interim Deficiency Rept Re Polar Crane Rail tie-down Studs.Investigation by Vendor Concludes That Acceptability of Polar Crane hold-down Studs Are Questionable.Brown & Root Will Further Evaluate Sys.Next Report to Be Sent 800801 | |
ML19318D289 | 6 June 1980 | Second Interim Deficiency Rept Re Damage to Unit 2 Reactor Containment Bldg Steel Liner Plate.Plate Removal & Mapping Completed.Next Interim Rept to Be Submitted by 800711 | |
ML19320A791 | 26 June 1980 | Ro:On 800529,during Design Review,Seismic Qualification of Essential Cooling Water Intake Structure Gantry Crane & Diesel Generator Fuel Storage Tank Found W/Deficient Response Spectra Values.New Seismic Evaluation in Progress | Safe Shutdown Earthquake Operating Basis Earthquake |
ML19320B149 | 3 July 1980 | Interim Deficiency Rept Re Breakdown in Quality Program for Concrete Placement CIl-W90.Brown & Root Continuing Investigation of Conditions & Examining Documentation & Physical Quality of Placement | |
ML19320C011 | 3 July 1980 | Final Deficiency Rept Re Reactor Vessel Outlet Nozzle safe- Ends.Evaluation Shows That Condition Would Not Adversely Affect Safety of Plant Operation.Matter Considered Not Reportable Under 10CFR50.55(e) | |
ML19320C134 | 6 June 1980 | Second Interim Part 21 Rept Re Steel Liner Plate in Reactor Containment Bldg.Progress on Repair Includes Completed Removal of Deformed Liner Plate & Detailed Mapping of Removed Plate Submitted to Contractor | |
ML19320C290 | 11 July 1980 | Interim Deficiency Rept Re Linear Plate Bulge Consisting of Logic for Linear Plate Bulge Repair | |
ML19320D552 | 11 July 1980 | Third Interim Deficiency Rept Re Damage to Steel Liner in Reactor Containment Bldg.Logic for Liner Bulge Repair Encl. Next Rept Will Be Forwarded by 801001 | |
ML19321A487 | 14 July 1980 | First Interim Deficiency Rept Re Breakdown in Brown & Root QA Program Re Procurement Cycle of Purchased Matls at Facility.Procedures for Procurement Cycle Control & All vendor-related Activities & Records Under Review | |
ML19321A498 | 16 July 1980 | Interim Deficiency Rept Re Diesel Generator Fuel Oil Tank Room Exhaust Fans.Per Commitments in PSAR & Fsar,Fans Must Be Connected to Class IE Power.Fans Not Supplied from Class IE Source.Corrective Actions Being Evaluated | |
ML19321A509 | 17 July 1980 | Interim Deficiency Rept Re Matl Control of ASTM A-325 Structural Steel Bolts.Improper Segregation of Category I & non-Category I Structural Steel Bolts in Field Resulted in Bolts Procured Under non-Category I Specs | |
ML19322E979 | 24 March 1980 | First Interim Deficiency Rept Consisting of Schematic Drawing of Logic for Liner Plate Bulge Repair | |
ML19323E350 | 16 May 1980 | Seismic Analysis of Category I Structures:Alternate Comparative Analysis Using Elastic Half-Space Method. | |
ML19323F006 | 30 April 1980 | Interim Deficiency Rept Re Unconsolidated Concrete in Slab of Unit 1 Fuel Handling Bldg.Caused by Extensive Congested Reinforcing Steel That Exists in Bottom of Slab,Combined W/ Inadequate Vibration Efforts | |
ML19324B137 | 23 October 1989 | LER 89-023-00:on 890922,turbine Trip Occurred on Loss of Power to Four Main Turbine Auto Stop Solenoids.Caused by Failure of Capacitor on Dc to Dc Converter Board in nonsafety-related Inverter.Inverter repaired.W/891023 Ltr | |
ML19324B473 | 26 October 1989 | Annual Summary Rept Re 10CFR50.59 Evaluations,Describing Changes,Tests & Experiments Associated W/Plant | Safe Shutdown Boric Acid Fire Barrier Anticipated operational occurrence Post Accident Monitoring Temporary Modification Control of Heavy Loads Fuel cladding Pressure Boundary Leakage Fire Protection Program |
ML19324C161 | 10 November 1989 | LER 89-020-00:on 891011,inverter Which Feeds Channel IV Class IE Vital Ac Distribution Panel Failed Causing ESF Actuations in Control Room.Caused by Failure of Bridge Rectifier Circuit.Inverter repaired.W/891110 Ltr | |
ML19325C308 | 5 October 1989 | LER 89-021-00:on 890905,reactor Trip & Auxiliary Feedwater Sys Actuation Occurred.Caused by Defective Pump 22 Speed Controller Card Edge Connector.Defective Card Edge Connector Repaired & Card Frame Alignment checked.W/891005 Ltr |