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| Issue date | Title | Topic | |
|---|---|---|---|
| FVY-86-105, Part 21 Rept Re Design Defect Relating to Limitorque Motor Operators Mfg Prior to 1975.Mfg Contacted & Retrofit Kits Installed on safety-related & nonsafety-related Operators. Addl Info Encl | 10 November 1986 | Part 21 Rept Re Design Defect Relating to Limitorque Motor Operators Mfg Prior to 1975.Mfg Contacted & Retrofit Kits Installed on safety-related & nonsafety-related Operators. Addl Info Encl | |
| LD-84-063, Part 21 Rept Re Evaluation & Corrective Action for Excessive Setpoint Drift in Some Potentiometers in Auxiliary Feedwater Actuation Sys Cabinet at St Lucie Unit 2 & Plant Protection Sys Cabinets at Palo Verde | 26 October 1984 | Part 21 Rept Re Evaluation & Corrective Action for Excessive Setpoint Drift in Some Potentiometers in Auxiliary Feedwater Actuation Sys Cabinet at St Lucie Unit 2 & Plant Protection Sys Cabinets at Palo Verde | |
| ML17223A745 | 26 January 1990 | Part 21 Rept Re Backup Rings Furnished in Spare Parts Seal Kits & in 25 Gpm 4 Way Valves as Part of Actuators Made of Incorrect Matl.Rings Should Be Viton & Have Been Identified as Buna N | |
| ML17261A530 | 18 June 1987 | Part 21 Rept Re Potential Util Failure to Comply W/Component Containment Isolation Licensing Commitment If Proposed Mods to Component Cooling Water Sys Instituted.Utils Advised to Evaluate Containment Isolation Sys | |
| ML18093A828 | 6 May 1988 | Part 21 & Deficiency Rept Re Asea Brown Boveri,Power Distribution,Inc Low Voltage K-Line Circuit Breakers. Efforts Underway to Define Quantity & Type of Component Parts That May Need to Be Replaced | |
| ML18153C101 | 2 February 1990 | Part 21 Rept Re Two of Three Pc Cards in GE Type SLV11A1 Over/Undervoltage Relays Failing to Produce Output.Short Between Leads Would Result in Damage to Component 1C5. Sketch of Threshold Detection Board Encl | |
| ML19207B122 | 15 August 1979 | Interim Deficiency Rept Re Questionable QA Documentation on Steel Received from Glazer Steel & Aluminum.Glazer Removed from List of Approved Suppliers of Certified Matl.Final Rept Anticipated by 800216 | |
| ML19207B156 | 16 August 1979 | Final Deficiency Rept Re Defective Type GE SB-12 Auxiliary Switches in safety-related Switchgear.Caused by Worn Die Used to Form Holes in Contact Arms of Switches.Elongated Holes Resulted in Improper Contact Wipe | |
| ML19207B977 | 30 August 1979 | First Interim Deficiency Rept Re Containment Anchor Bolt Chain Weld Deficiencies.Caused by Breakdown in Institution of Welding Qa/Qc Program Due to Misunderstanding of Weld Acceptance Criteria by Some Inspectors | |
| ML19207C005 | 29 August 1979 | Final Deficiency Rept Re GE Design of safety-relief Valve Control Sys.Caused by Assumption That Containment Loads Were Sufficiently Low from safety-relief Valve Discharges to Be Classified as Secondary Loads.Ge Mods Will Be Implemented | |
| ML19209B558 | 1 October 1979 | Forwards Interim Rept on Unacceptable Bending of Welded Stud Anchors on Embedded Plates.Caused by Const Forces Not Following Design Drawings.Testing Program Being Initiated to Determine Effects of Bending | |
| ML19209B561 | 1 October 1979 | Forwards Interim Rept on Faulty Welding by Lakeside Bridge & Steel on Drywall Vent Structure & Reactor Pressure Vessel Pedestal.Caused by Unacceptable Work & Copper Containment. Defective Buttering & Pedestal Cracking Will Be Repaired | Nondestructive Examination Earthquake Liquid penetrant |
| ML19209C899 | 11 October 1979 | Final Deficiency Rept Re Invalid Heat Treatment of Reactor Pressure Vessel Pedestal Studs.Studs Fabricated by Acimet Mfg Co in Lots Exceeding ASME Requirements.Caused by Error on Purchase Order in Specs for Heat Treated Matl | Time of Discovery |
| ML19209D133 | 1 October 1979 | Final Deficiency Rept Re Faulty Welding by Lakeside Bridge & Steel on Drywell Structure & Reactor Pressure Vessel Pedestal.Caused by Unacceptable Work as Result of Insufficient Nondestructive Exam | Earthquake Liquid penetrant |
| ML19209D181 | 1 October 1979 | Interim Deficiency Rept Re Unacceptble Bending of Welded Anchor Studs on Embedded Plates.Another Rept Will Be Forwarded by 800601 | |
| ML19210D091 | 13 August 1979 | Second Interim Deficiency Rept:On 790507,general R&D Program Tests Revealed Cracking of heat-affected Zone of Welded Stud Anchors.Final Rept by 791221 | |
| ML19210D141 | 26 October 1979 | Final Deficiency Rept Re Tensile Anchor Capacities Lower than Assumed in Design Allowables.Progressive Cracking Occurred in Welded Stud Anchors.Plate Flexibility Problems Eliminated by Use of Knee Brace Brackets | |
| ML19210D348 | 16 November 1979 | Interim Rept 1:on 791019,excessive Base Metal Was Removed in Piping Assembly Elbows.Caused by Grit Blasting W/O Use of Diffuser or Deflection Shields.Piping Assemblies Being Surveyed.Final Rept Will Be Submitted 800131 | |
| ML19241A794 | 1 June 1979 | Deficiency Rept:During Period 780705-0915,essential Svc Water Spray Pond Central & Support Earthfill Placed W/Moisture Content Outside Acceptable Limits.Caused by Mathematical Errors in Computation.Qc Manual Revised | |
| ML19242D205 | 5 July 1979 | First Interim Deficiency Rept Re Faulty Welding by Lakeside Bridge & Steel Co on Drywell Vent Structure & Reactor Pressure Vessel Pedestal.Cracks Observed Near Weld Joints. Investigation & Repairs Underway | Earthquake Liquid penetrant |
| ML19249A555 | 16 August 1979 | Final Rept Re Use of non-ASME Components on Primary Containment Personnel Access Airlocks.Caused by Vendor Interpretation of GE Specification 300-13.Airlock Sys Will Be Redesigned & Refabricated | |
| ML19249E399 | 29 June 1979 | Final Deficiency Rept on Breakdown in QC Program at Industrial Engineering Works Re Reactor Pressure Vessel Shield Wall.Faulty Butter Welds Will Be Repaired at Const Site | |
| ML19250C588 | 21 November 1979 | First Interim Deficiency Rept Re Rebar Bending.Partially Embedded Rebar May Develop Cracks During Bending by Plant Const Employees.Caused by Nonimplementation of Rebar Bending Tech Specs.Procedures Revised | |
| ML19256A231 | 18 October 1978 | Third Interim Rept Re Purchase Requests Issued W/O IEEE Qualifications Specs.Procurement Requests for Process Flow Equip Have Been Rev & Sent to Vendors.Investigation Continues | |
| ML19256E508 | 15 October 1979 | Supplemental Rept to Final Interim Deficiency Rept Re Blown 3-amp Fuses in Low Voltage Switchgear.Westinghouse Unable to Determine Cause;Requested to Continue Investigation | |
| ML19257A281 | 6 December 1979 | Final Rept Re Pressure Testing of Fuel Pool Cooling & Cleanup Sys Piping for All Units Above Aci 318-71 Limits. Portions of Two 2-inch Pipes Tested Above Limits.Caused by Designer Failure to Specify Alternate Testing | |
| ML19257A284 | 6 December 1979 | Final Deficiency Rept:On 791111,notified Region Re Use of Incorrect Weld Acceptance Criteria on Reactor Pressure Vessel Pedestal Welds.Radiographs of Welds re-evaluated W/Proper Aws Criteria | Earthquake |
| ML19257A331 | 12 December 1979 | Second Interim Deficiency Rept Re Use of Incorrect Concrete Mix in Shield Bldg Wall.Final Rept Will Be Forwarded by 800314 | |
| ML19257A789 | 31 December 1979 | Final Deficiency Rept Re Condensate Header Vortex Breakers Omitted from Piping Arrangement Drawings.Caused by Failure to Transfer Vortex Breakers as Shown on CF Braun & Co Drawing.Hartsville Unit 1 Will Have Breakers Installed | |
| ML19257B917 | 11 January 1980 | Second Interim Deficiency Rept Re Containment Anchor Bolt Chair Weld.Evaluation Revealed That Deficiencies Were Isolated Condition & That Overall Weld Insp Program Is Adequate.Will Submit Final Rept by 800319 | |
| ML19260D051 | 31 January 1980 | Final Deficiency Rept Re Grit Blasting of Fabricated Piping Assemblies.Caused by Operator Sandblasting W/O Diffusers. Straight Nozzle Will Be Locked in Tool Box Under Control of Sandblast Operator | |
| ML19261D535 | 25 May 1979 | Deficiency Rept on 790525:piping Elbows Constructed from Unspecified Matl.Elbows W/Heat Code W6719 Were Identified, Tested & Returned to Manufacturer | |
| ML19262C365 | 1 February 1980 | Final Deficiency Rept Re Rebar Not Bending in Accordance W/ Site Procedures.Affected Const Personnel Have Been Notified of Revision to G-2.Const Engineering Procedures Require Requesting Design Approval Before Bending Embedded Rebar | |
| ML19269B927 | 7 December 1978 | Deficiency Rept 3 on HPCS Motor Control Center Wiring Discrepancies(Nrc HNP-A-013) | |
| ML19276F641 | 7 March 1979 | Final Rept,Ncr HNP-A-021,on Wiring Discrepancies in High Pressure Core Spray Diesel Generator Control Switchgear. Lists Discrepancies Found.Problems Have Been Identified & Will Be Corrected | |
| ML19289C899 | 16 November 1978 | Final Rept of Deficiency:Shaft Key & Spline Adapter of Basic in-flow Valves May Vibrate Loose & Fall Away,Leaving Valve Inoperable.Corrective Action:Stainless Steel Spacer to Be Inserted Against End of Valve Stem | |
| ML19290B732 | 15 November 1979 | Final Deficiency Rept Re Design Deficiency of T-head Section of Anchor/Darling Gate Valves.Company Has Implemented Results of Evaluation of T-head Section for Svc Condition, Into Internal Design Std | |
| ML19291C252 | 18 January 1980 | Final Deficiency Rept Re Inadequate Matl Traceability on Bergen-Paterson Component Support Attachments.Caused by Vendor Failure to Specify Heat Traceability Requirements on Detailed Drawings.Vendor Will Replace Attachments | |
| 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 | |
| ML19296B773 | 14 February 1980 | Final Deficiency Rept Re Unacceptable QA Documentation for Glazer Steel Matl.Util QA Survey Determined QA Program Unacceptable.Until Acceptable QA Level Achieved,Only Steel Shipped Direct from Mill Will Be Accepted | |
| ML19296C664 | 15 February 1980 | Final Deficiency Rept Re Radiographic Exam of Hartsville Drywell Vent Structure & Phipps Bend Reactor Pressure Vessel Pedestal Weld Buildup.Exam Improperly Performed & Evaluated. Partially Caused by Inadequate Exposure of Film | Earthquake |
| ML19305A807 | 13 March 1980 | Interim Deficiency Rept Re Weld Deficiencies in Reactor Pressure Vessel Shield Wall.Of 25 Welds inspected,17 Were Found to Be of Unacceptable Quality.Backing Bar Will Be Stripped from First Two Shells of Wall | |
| ML19305C379 | 19 March 1980 | Third Interim Deficiency Rept Re Deficient Welds Between Containment Anchor Bolt Chair & Both Containment Shell & Base Plate.Cause Unstated.Work Halted on Containment Anchor Bolt Chair for Units 1 & 2.All Welders to Attend Training | |
| ML19305D695 | 3 April 1980 | Suppl to Final Deficiency Rept Re Unacceptable QA Documentation for Glazer Steel Matl.All Questionable Matl Has Been Tested.Slightly Excessive Sulfur Content Is Caused by Chemical Differences & Not QA Sys Defects | |
| ML19305D938 | 31 March 1980 | Revised Corrective Actions to 800213 Final Deficiency Rept. Buttered Edges on Reactor Pressure Vessel Pedestal Examined & Repaired.Vendor Film Quality Sufficient to Produce Repair Overlays | Weld Overlay |
| ML19309A836 | 27 March 1980 | Interim Deficiency Rept Re Potential Overstress Condition in Letdown Cooler Supports.Nozzle Loads Will Be Analyzed for Effects on Support Structure to Determine If Mods Are Required to Cooler Support Sys | |
| ML19309A843 | 3 March 1980 | Forwards Addl Info to Part 21 Rept Re Potentially Overstressed Supports on Reactor Coolant Letdown Coolers at Facilities Under Const by B&W | |
| ML19309F116 | 14 April 1980 | First Interim Deficiency Rept Re Cracks in Reactor Pressure Vessel Shield Wall.Three Base Metal Cracks Were Found in Shield Wall Inner Shell Plates.Cause to Be Determined Pending Results of Singleton Analysis | |
| ML19309F243 | 7 April 1980 | Part 21 Rept Re Insp of Generator Control Panels for Emergency Diesel Generators.Results Determined Defects Could Degrade Emergency Diesel Unit to Unsafe Performance. Corrective Action Includes in-depth Insps & Training | |
| ML19309F703 | 24 April 1980 | First Interim Deficiency Rept Re Wiring in HPCS Metal Clad Switchgear.Ge Has Been Notified of Wiring Diagram & Labeling Discrepancies,Missing Wires & Billing Problems.Phipps Bend Mgt Investigating Discrepancies |