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| Issue date | Title | Topic | |
|---|---|---|---|
| ML19290F004 | 6 March 1980 | Interim Deficiency Rept Re Rod Drop Analysis.Westinghouse Interim Solution Re Automatic Mode of Reactor Control Will Be Incorporated Into Operating Procedures If No long-term Solution Is Available Prior to Loading Fuel | |
| ML19291B915 | 5 December 1979 | Final Deficiency Rept Re Design Error in Sonicbar Pressure Resistant & Watertight Door Units Frame Anchorage.Door Frames Not Yet Installed.Design Mods Will Be Provided & Doors Will Be Installed by 800101 | Safe Shutdown |
| ML19291B917 | 3 December 1979 | Final Deficiency Rept:On 791107,undetectable Failure in Engineered Safety Features Actuation Sys Occurred.Analysis Revealed Sys Ability to Initiate Safety Injection Could Be Lost Under Certain Conditions.Plant Procedures Were Revised | |
| ML19294B485 | 11 February 1980 | Final Deficiency Rept Re Electrical Conduit Supports Attached to Concrete Structures W/Anchor Bolts That Did Not Meet Tolerance Criteria.Engineering Change Implemented to Include Tables Developed in Specs.Supports Being Repaired | |
| ML19294B491 | 12 February 1980 | Interim Deficiency Rept Re Blades,Linkages & Arms Setscrews Coming Loose & Causing Damper Blades to Assume Improper Position.Caused by Excessive Hardness of Shaft Matl. Fillet Welds Being Provided to Prevent Slippage | |
| ML19294C067 | 12 February 1980 | Deficiency Rept:On 791228,during Startup Testing,Discovered Bahnson Design Did Not Account for Hardness of Shaft & Use of Excessively Hardened Matl.Fillet Welds Are Being Provided at Several Locations to Prevent Slipping | |
| ML19294C258 | 12 February 1980 | Final Deficiency Rept on Bahnson Co safety-related Automatic & Gravity Ventilation Damper Setscrews.Setscrew Matl Too Hard,Causing Possible Slippage & Consequent Improper Blade Position.Fillet Welds Installed to Prevent Slippage | |
| ML19296A732 | 11 February 1980 | Final Deficiency Rept Re Lightning Arrestors in 480-volt Load Ctrs Causing Reading Below Manufacturer Recommended Min Value.Cause Unstated.Damaged Arrestors Will Be Replaced & Resistance Checked | |
| ML19296D326 | 4 February 1980 | Final Deficiency Rept Re Leak in Bottom Plate of Condensate Storage Tank Caused by Crack Near Circumferential Weld Seam. Deformed Areas in Bottom Plates Cut Out & Replaced W/New Plates | Boric Acid Loop seal |
| ML19305C442 | 21 March 1980 | Deficiency Rept:On 800221,possibility of Undersize Welds for Branch Connections Was Discovered.Caused by Program Deviation of Piping Supplier Wherein Weld Sizes Were Not Translated Into Drawings & Spool Sizes.Insp Is Underway | |
| ML19305C753 | 3 March 1980 | Interim Deficiency Rept Re Main Steam Pipe Spools.Ge Issued Instructions to Restore Affected Wall Thickness to Original GE Spec Requirement.Final Rept Will Be Submitted by 800321 | |
| ML19305D198 | 7 March 1980 | Part 21 Rept Re Emergency Feedwater Pump,Turbine Governor Valve Linkage.Governor Linkage Modified to Accommodate Spring Which Preloads Valve Linkage So Governor Valve Remains Open During Standby | Safe Shutdown |
| ML19305D774 | 8 April 1980 | Final Deficiency Rept Re Failure of Thrust Bearing on Diesel Generator Mfg by Colt Industries.Forwards Colt Industries 800305 Ltr Regarding Successful Completion of Shop Tests | |
| ML19305D811 | 8 April 1980 | Final Deficiency Rept Re Measurement of Steam Generator Water Level.Steam Generator Impulse Lines Are Being Thermally Insulated to Minimize Heatup.Mod Will Ensure Proper Accuracies W/O Requiring Large Setpoint Increase | |
| ML19305D954 | 27 March 1980 | Interim Deficiency Rept Re Potential Stress Corrosion Cracking of Control Rod Guide Tube Support Pins.Cause Unstated.Westinghouse Will Perform Ultrasonic Insp of Support Pins in Two or More Operating Domestic Plants | |
| ML19305D990 | 21 March 1980 | Deficiency Rept 50-395/80-05-07 Re Piping Supplier Drawings of Reinforcing Fillet Weld for Branch Connections & Contractor Revisions Not Providing Min Throat Thickness for Specified Weld Sizes.Caused by Program Deviation | |
| ML19309A984 | 6 March 1980 | Part 21 Rept:Insp Completed on Crackshaft Thrust Bearing on Generator A.Plugs Properly Installed & Unit Free of Potential Defect | |
| ML19309E440 | 10 March 1980 | Part 21 Rept:On 800304,received Notification of Potential Problems w/Bergen-Patterson Mechanical Shock Arrestor Assemblies.Defective Assemblies Located on RCS,safety- Related Component Cooling Sys & Reactor Bldg Spray Sys | |
| ML19309F105 | 8 April 1980 | Final Deficiency Rept Re Measurement of Steam Generator Water Level.Steam Generator Level Impulse Lines Being Thermally Insulated to Minimize Heatup During Time Required to Perform Trip Function,After High Energy Line Break | |
| ML19309F746 | 27 March 1980 | Part 21 Rept Re Control Rod Guide Tube Support Pin Cracking Due to Possible Stress Corrosion Cracking.Broken Support Pin Could Prevent Proper Control Rod Operation | |
| ML19309G766 | 2 May 1980 | Potential Significant Deficiency Rept Re Discrepancy in Procurement of Weld Wire.Wire Used in post-weld,heat-treated Weldments Was Tested for Only as-welded Condition | |
| ML19309H123 | 11 April 1980 | Final Deficiency Rept Per 10CFR21,re Svc Water Booster Pump Motor Failure.Motors Were Taken Out of Svc & Sent to Factory for Repair | |
| ML19312D413 | 25 February 1980 | Final Deficiency Rept Re Feedwater Check Valves.Check Valves Will Not Be Modified But Replaced W/Rockwell Intl Control Closure Piston Check Valves.Installation Should Be Completed by 801031 | |
| ML19312E330 | 28 May 1980 | Final Deficiency Rept Re Broken Insulators on 7kV Speed & Transfer Switches.Mfg Will Provide New,Heavier Shafts on Operating Mechanism & Welded Cranks to Reduce Deflection. Operating Angle of Cranks Will Also Be Changed | |
| ML19312E362 | 28 May 1980 | Final Deficiency Rept Re Incorrect Current Sensor in 480- Volt Load Ctr Circuit breaker.Safety-related 480-volt Breakers Inspected Visually.One Sensor Replaced.Manufacturer Notified | |
| ML19312E512 | 28 May 1980 | Final Deficiency Rept Re Inadequate Electrical Separation. Power Feeder Circuit (Dc) Was Routed from safety-related Distribution Panel to nonsafety-related Panel W/No Isolation Device.Design Control Program Requirements Reviewed | |
| ML19318A059 | 13 June 1980 | Deficiency Rept Re Substantial Safety Hazard in Westinghouse Centrifugal Charging Pump Operation.Interim Mods Suggested | |
| ML19318A593 | 19 May 1980 | Deficiency Rept Re ASME Code Class 1 Piping Ordered W/O Stipulating Proper Testing.Caused by Misinterpretation of FSAR Requirements.Purchase Order Changed to Require Examination | |
| ML19318A609 | 27 May 1980 | Final Deficiency Rept Re Shelf Life of Tapes Used for 480 Volt Terminations Not Being Addressed in Site Procedures. Terminations Are Being Redone.Shelf Lives Have Been Obtained & Are Included in Site Storage Procedures.Details Encl | |
| ML19318C329 | 27 June 1980 | Deficiency Rept Re Possible Improper Rocker Arm Prelube Pump Operation.Pump Could Fail to Start as Result of Hydraulic Lock in Cylinder.Instituting Further Review of Other Installation Electrical Schematics & Instruction Manuals | |
| ML19318C426 | 26 June 1980 | to Part 21 Rept Re Failed Thrust Bearing.Insp Complete.Crankshaft Thrust Bearings on Two Diesel Generators Are Free of Reported Potential Defect | |
| ML19322E585 | 21 March 1980 | Final Deficiency rept:safety-related Class 3 Butt Welds & Class 1,2 & 3 Attachment Welds Generically Contain Undersize Welds & Other Defects.Caused by Failure to Comply W/Asme Insp Program.Personnel Retrained | |
| ML19322E800 | 5 March 1980 | Part 21 Rept:On 800114,Colt Industries Reported Failure of Thrust Bearing in Diesel Generator Due to Omission of Plugs from Oil Supply Sys.Thrust Bearing & Thrust Collar Are Being Replaced & Plugs Installed | |
| ML19322E820 | 10 March 1980 | Deficiency Rept Re Problems Identified in Bergen-Patterson Part 2540 Strut Assembly Used W/Pacific Scientific Mechanical Shock Arrestors.Cause Unstated.Larger Assemblies Being Replaced.Smaller Assemblies Modified | |
| ML19323E239 | 9 May 1980 | Part 21 Rept Re Failure of Adaptor in Air Start Mod Package for Emergency Diesel Generator,Mfg by Colt Industries. Recommends That Purchasers &/Or Licensees Inspect Fittings Fabricated by Colt for Similar Conditions | Safe Shutdown |
| ML19323E426 | 19 May 1980 | Deficiency Rept Re RHR Valve Failure.During RCS Heatup for Cold Hydro, a Train RHR Heat Exchanger Flow Control Valve Closed.Caused by Separating Stem Conductor Due to Excessive Bolt Penetration.New Bolts Being Procured | |
| ML19323F742 | 22 May 1980 | Final Deficiency Rept Re Electrical Penetrations W/Incorrect Blinding Pin Installations in Plug Assemblies.Assembly & Insp Procedures Changed.Proper Blinding Pins Will Be Installed & Inspected | |
| ML19323G137 | 25 April 1980 | Interim Deficiency Rept Re Primary Containment Relief Valves Potential Significant Deficiency.Determination of Corrective Action Scheduled for 800522 | |
| ML19323G423 | 23 May 1980 | Second Interim Rept Re Potential Deficiency in Primary Containment Relief Valves.Initial Analysis Indicates Hinge Block Mounting Studs Inadequate.Revised Analysis by 800630 | |
| ML19323H066 | 29 May 1980 | Significant Deficiency Rept:On 800222,discovered Chiller Unit Could Not Be Fully Loaded Before Unit Would Trip Out on Low Evaporator Pressure.Low Svc Water Flow Cutout Deleted | |
| ML19323J319 | 6 June 1980 | Part 21 Rept Re Failed Engine Thrust Bearing.Diesel Generator Sets Were Inspected in Accordance W/Written Procedures & Revised Drawings.Generators Are Free of Reported Potential Defect | |
| ML19326E035 | 21 July 1980 | Final Deficiency Rept Re Diesel Generator Prelube Oil Pump Continuous Operation.Pump Controls Will Be Revised to Operate for Short Period of Time Each Day.Length of Time to Be Determined by Mfg | |
| ML19329G032 | 4 June 1980 | Part 21 Rept Re Defective Woodward Governor Supplied on Terry Turbines.Turbine May Trip on Overspeed If Restarted within 30 Minutes After Shutdown.Restart Procedure Revised & Label Applied to Governor | |
| ML19330B281 | 25 June 1980 | Potential Significant Deficiency Rept Re Primary Containment Relief Valves Supplied by Gpe Controls.Bechtel Has Completed Review of Revised Stress Analysis Calculations.Expected Completion Date of Actions Is 800815 | |
| ML19330B755 | 30 July 1980 | Final Significant Deficiency Rept Re Incorrectly Specified & Installed Flange Matl,Originally Discussed W/Nrc on 800708. All 304 Stainless Steel Flanges Will Be Removed & Replaced w/316 Stainless Steel Flanges | |
| ML19331D332 | 25 August 1980 | Final Rept,Per 10CFR21 & IE Bulletin 80-16,re Rosemount Model 1152 Pressure Transmitter Safety Hazards.Twelve Transmitters Could Have False Instrument Outputs Caused by Overrange Condition.Instruments to Be Modified or Replaced | |
| ML19331D827 | 28 August 1980 | Interim Deficiency Rept Re Lack of Full Penetration Welds for Attachments to Class I Pipe.Attachment Welds Will Be Reworked Providing Full Penetration.Class II & III Attachments Will Be Evaluated & Rept Furnished | Liquid penetrant |
| ML19332A037 | 30 July 1980 | Interim Deficiency Rept Re Class 1 Pipe Installed W/O Having Required 4-way Ultrasonic Exam.Piping Not Properly Examined Presented for Shipment.Caused by Failure to Perform & Comply W/Procedures to Verify Matl Acceptability | |
| ML19332A674 | 2 September 1980 | Part 21 Rept Re Con/Chem Epoxy Surfacer Sys.Suppls 800812 Ltr Re Subj Item Reported by Bechtel Power Corp.Will Advise of Schedule Dates of Completion When Bechtel Engineering Studies Finalized | |
| ML19332C583 | 20 November 1989 | Part 21 Rept Re Misapplication of Magnetrol Level Switches Supplied by GE W/Hpci & RCIC Turbine Assemblies.Switches Declared Inoperable & Electrically Disconnected.Magnetrol Will Modify Spare Level Switch Assemblies |