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	Issue date	Title	Topic
ML19254E985	15 October 1979	Final Deficiency Rept Re DBA Movements of Steel Containment. Forwards List of Piping Sys by Penetration for Reanalysis Re Inertial Effects.All Piping Sys Having Rigid Penetrations Through Steel Containment Reanalyzed	Safe Shutdown Earthquake
ML19254F213	30 October 1979	Second Interim Rept Re Foxboro Instrumentation.Erroneous Output Signals Came from Magnetic Amplifier Equipment.Caused by Inability of Module to Correct for Normal Voltage Transients.Inverters Being Replaced
ML19256A238	16 October 1978	First Interim Rept of Deficiency Ncr 2p:Plant Configuration Different than Drawings of Record,Due to Error to TVA Drawing Certification Process
ML19256A406	29 November 1978	Final Deficiency Rept Re Separation of Impeller from the Pump Shafts After Period of Use in High Pressure Fire Protection Sys,Caused by Incorrect Method of Attaching Impeller to Shaft	Safe Shutdown
ML19256A412	16 November 1978	Deficiency in Essential Raw Cooling Water Sys Supply to Heat Exchangers:W/Loss of Water Through Exchangers,Ercw Sys Will Not Meet Sys Design Basis of LOCA Associated W/Loss of Offsite Power & Loss of Train a
ML19256B208	28 December 1978	Third Interim Rept Re Possible Unconservative Pressurizer Relief & Safety Line Blowdown Analysis.Reanalysis & Support Design of Sys Complete,But Some Components of Nozzle Loads Are Too Great
ML19256F621	12 December 1979	Final Deficiency Rept Re RCS Exceeding Heatup & Cooldown Rates.Physical Locations of Temp Elements Subject Them to Localized Transient Temp Changes Not Indicative of RCS as Whole.No Corrective Action Necessary
ML19256G118	18 December 1979	Final Rept on Field Relay Coil Failures.Field Relay Coils Replaced & Generators Back in Svc
ML19256G251	14 December 1979	Final Deficiency Rept:On 791116,charcoal Absorber Trays Were Found to Leak Charcoal Between Frame & Perforated Plate. Caused by Design Defect Due to Poorly pop-riveted Joint. Trays Will Be Removed & Replaced
ML19257A897	2 January 1980	Final Deficiency Rept Re Inappropriate Seismic Analysis of Upper Head Injection Piping.Unit 2 Piping Required Different Seismic Response Spectra.Piping Will Be Reanalyzed Using Appropriate Seismic Response Spectra
ML19257D090	23 January 1980	Final Deficiency Rept Re Ice Condenser Heat Loads Exceeding Design Heat Loads.Glycol Chiller Units Currently Maintaining Temp of 15 F
ML19259C233	10 May 1979	Final Deficiency Rept:Bistable Contacts in Auxiliary Room Loops of Pressurizer Power Relief Valves Failed in Undersirable Position.Valve Wiring Corrected.No Other Discrepancies Found
ML19259D382	10 October 1979	Revised Final Deficiency Rept Re Potential Excessive Water Hammer Forces in Main Feedwater Sys.Util Failed to Evaluate Water Hammer Forces at Design Stage.Main Check Valves Analyzed.Valves Adequate for All Accident Conditions	Safe Shutdown
ML19260C863	30 January 1980	First Interim Deficiency Rept Re Radiation Monitors Spurious Signals.On 791212 & 13,readout Instruments in Main Control Room Spiked Upscale in Unison.Caused by Operation of Heliarc Welding Machine in Auxiliary Bldg	Boric Acid
ML19260E261	4 February 1980	Final Deficiency Rept Re Incorrect Valve Data Used in Piping Analyses of Lines Penetrating Steel Containment Vessel.Pipe Supports Are Being Added,Moved or Modified as Required to Meet Piping Code Stress Allowables
ML19260G383	29 October 1980	Final Interim Deficiency Rept First Reported 800516,re Design Criteria for Secondary Side Pipe Breaks.Design Did Not Adequately Protect Steam Generator Blowdown Lines. Supports & Barrier Required to Mitigate Any Pipe Rupture
ML19261B645	16 February 1979	Final Rept on Reactor Coolant Pump Tie Rod Embedments.Addl Anchor Bolts Added to Each of Three Embedments Per Unit & Stiffener Plates Added to One of Embedments Per Unit
ML19261B650	20 February 1979	Final Deficiency Rept Concludes Nine Addl Fire Dampers & Eight Addl Fire Doors Are Required in Control & Auxiliary Bldgs
ML19261D620	15 June 1979	Final Deficiency Rept:Overstressed Penetrations in Containment Shell.Design Drawings Are Being Revised to Move Snubbers & Secure Them Between Piping & Steel Containment. Mods Will Be Performed Prior to Respective Fuel Load Dates
ML19263B071	28 December 1978	Final Deficiency Rept Re Separation of Impeller from Pump Shafts After Period of Use in Fire Protection Sys,Caused by Method of Attaching Impeller to Shaft.Pumps Are Being Repaired	Safe Shutdown
ML19263B855	12 January 1979	First Interim Rept on Inadequate design:as-built Configuration of Heating,Air Conditioning & Ventilating Penetrations Were Not Accounted for in Containment Design. Caused by Design Spec Error
ML19263B892	20 December 1978	Final Rept on Deficient Diesel Generator Hydraulic Actuator Speed Control Circuits on Diesels 2A-A & 2B-B.Electric Drives for Hydraulic Actuators Developed Open Armature Circuit & Relay Contacts Burned.Caused by Voltage Mismatch	Safe Shutdown
ML19263B932	17 January 1979	First Interim Rept for Deficiency Initially Reported 781218. Compartmentation of Control Bldg & Auxiliary Bldg Did Not Meet Fire Protection Design Criteria.Addl Fire Doors & Fire Dampers Will Be Added
ML19269E583	25 June 1979	First Interim Deficiency Rept:During Hot Functional Preoperational Testing,Removal of Bellows Restraints Revealed Misalignment.Caused by Faulty Installation Sequence.Bellows Reinstalled	Safe Shutdown Earthquake
ML19270F054	4 January 1979	Final Deficiency Rept Re Difference Between Design Drawings & Actual Plant Configuration.Error Found in Drawing Certification Process,Where a Portion of Residual Heat Removal Sys Was Modified Bedore Certificate of Drawings
ML19270F055	12 January 1979	Deficiency Rept:Lateral Restraint Needed During a Seismic Event Was Omitted from the High Pressure Chemical & Volume Control Piping Sys in Auxiliary Bldg.Replacement Will Be Designed & Installed by 790401
ML19270F059	19 December 1978	Second Interim Rept on Reduced Safety Injection Sys Flow at Low Reactor Coolant Levels.Licensee & Westinghouse Have Completed Installation of Modified Orifice Design. Accumulators Will Be Retested by Late Feb
ML19270F067	28 December 1978	Revised Final Deficiency Rept Re High Pressure Fire Protection Pump Failures.Impellers Separating from Pump Shafts Where Lock Collets Are Used;Reattached by Thrust Ring Const Method	Safe Shutdown
ML19270G455	31 May 1979	Revised 790510 Final Deficiency Rept Re Control Loop Bistable Failure on Loss of Power.Revision Specifies That Wiring Diagrams for Bistable Have Been Corrected & Physical Wiring Will Be Corrected
ML19270G821	11 June 1979	Submits Third Interim Deficiency Rept Re Vibration in RHR Piping Initially Reported 790208.Possible to Avoid Operational Modes That Result in Unacceptable Cavitation Across Valves.Operating Mode Recommendations Being Developed
ML19270H237	18 June 1979	Final Deficiency Rept:Pipe Restraint Structural Strand Temp.Pipe Thermal Insulation Being Redesigned to Provide Horizontal V-notch Configuration in Areas Where Strands Are in Close Proximity to Pipe
ML19270H806	26 September 1979	Final Deficiency Rept Re Tensile Anchor Capacities Lower than Assumed in Design Allowables.Test Program Initiated to Qualify Effect of Plate Flexibility on Stud Capacities to Withstand Design Loadings
ML19273B420	9 March 1979	Final Deficiency Rept,Ncr 1011,re Reduced Safety Injection Sys Accumulator Flow at Low Reactor Coolant Sys Levels. Design of Modified Injection Line Orifice Solved Problem of Backpressure Effect on Cavitation Downstream
ML19273B427	14 March 1979	First Interim Rept on Tensile Anchor Capacities Lower than Assumed in Design Allowables.Caused by Progressive Cracking of Heat Affected Zone of Welded Stud Anchors in Flexible Plate Connections.Tests Underway
ML19273B440	14 March 1979	First Interim Rept on Failure of Control Loop Bistables on 790214:bistables in Auxiliary Control Room Found to Fail in Undesirable Position Upon Loss of Control Power.Caused by Error in Instrument Wiring
ML19273B442	28 February 1979	First Deficiency Rept on Diesel Generator Relay Tachometer Failures During Periodic & Preoperational Testing.Probably Caused by Improperly Designed Voltage Regulation Circuits. Zener Diodes Replaced
ML19275A072	16 August 1979	Final Deficiency Rept Re Electrical Handhole Structural Integrity.Evaluation Indicates That Six Structures in Question Are Adequate for All Design Basis Events
ML19276F588	7 March 1979	Final Deficiency Rept:Movement of Steel Containment Vessel Was Not Accounted for in Design of Supports for Small Lines Penetrating Shield Bldg.Designs Are Under Analysis & Supports Will Be Redesigned
ML19276F618	28 February 1979	Final Deficiency Rept Re Metal Shavings Found in Operating Cylinders & Filters of Hydraulic Sys.Operation of Manual Pump Permitted Overpressurization of Hydraulic Cylinder. Shavings Removed
ML19276F628	28 February 1979	Final Deficiency Rept:Determined That Break in nonseismically-qualified Lines of Essential Raw Cooling Water Sys Would Result in Unacceptable Loss of Water. Qualified Instrumentation Will Be Provided
ML19289C164	29 November 1978	Revised Rept Deficient Foundation Preparation for Concrete Cells for the ERCW Pumping Station Access Roadway.
ML19291A886	11 July 1979	First Interim Deficiency Rept Re Failure of Barton Narrow Range Steam Generator Level Transmitters to Meet Acceptance Criteria for Accuracy.Suspect Transmitters Being Returned to Barton for Checking & Mods
ML19296A974	12 February 1980	Revised Final Deficiency Rept Re Piping Embedded in Structural Concrete.Revises Pressure Limits for 6-inch Pipes During Sys Testing
ML19296B787	1 February 1980	Final Deficiency Rept Re Inappropriate Documentation for Engineered Supports.Qa Audit Revealed 16 Supports Documented as Acceptable Based on Rejected Support Mod Requests.New Mod Requests Approved or Insp Cards Invalidated
ML19296C382	11 February 1980	Update to Final Deficiency Rept Re Incorrect Valve Weight Used in Piping Analysis.Forwards Addl Info Justifying Fuel Loading in Unit 1 Before Completion of Corrective Action. Corrective Action Will Be Completed Before Criticality
ML19296D333	11 February 1980	Final Deficiency Rept Re Incorrect Copes-Vulcan Valve Weight.Rerun of Piping Sys Load Analyses Indicates That Existing Supports Adequate to Absorb New Loads
ML19296D337	12 February 1980	Revised Final Deficiency Rept Re Piping Embedded in Structural Concrete.Evaluation Indicates That Structural Capacities Would Not Be Impaired by Embedded Pipes Having Been Subjected to Pressure Greater than 200 Psi
ML19305A108	28 December 1978	Final Deficiency Report:During Preoperational Test of Upper Head Injection Sys,Accumulators Injected Water in Excess of Design Allowables for LOCA Simulation.Standpipes Have Been Removed & Corrected
ML19305D953	26 March 1980	Second Interim Deficiency Rept Re Control Rod Drop Events. Westinghouse Continuing Investigation on Generic Basis.Next Rept Will Be Submitted by 800613	Rod Drop Event
ML19305D965	11 April 1980	Suppl to Final Deficiency Rept Re Pressurizer Relief Piping Support.Results of Tests to Verify Adequacy of Draw Bead Welding on Pressure Relief Valve Line Show That Weld Is Not Sensitized

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