Semantic search
Jump to navigation
Jump to search
| Issue date | Title | Topic | |
|---|---|---|---|
| ML20112G387 | 4 June 1996 | Potential Part 21 Rept Re Capscrews W/Trace Code of K7 Mfg by Cardinal Industries (Now Known as Accutech) & Distributed by Energy & Process Corp for Plant CP S/N 0194012.Pump/motor Would Remain Operational Throughout Worse Case Scenario | |
| ML20126J596 | 31 December 1992 | Part 21 Rept Re Potential Loss of RHR Cooling During Nozzle Dam Removal.Nozzle Dams May Create Trapped Air Column Behind Cold Leg Nozzle Dam.Mod to Nozzle Dams Currently Underway. Ltrs to Affected Utils Encl | Hydrostatic |
| ML20125C716 | 7 December 1992 | Part 21 Rept Re Possibility for Malfunction of Declutching Mechanisms in SMB/SB-000 & SMB/SB/SBD-00 Actuators. Malfunction Only Occurs During Seismic Event.Balanced Levers May Be Purchased from Vendor.List of Affected Utils Encl | Stroke time Anchor Darling |
| ML20086G293 | 21 November 1991 | Part 21 Rept Re Failure of Model 763 & 763A Static Pressure Transmitters.Caused by Short Circuit in Connector Pin to Adjacent Mounting Screw.Engineering Drawings & Mfg Work Instructions Changed & Stock Purged of Subj Transmitters | |
| ML20059N519 | 16 October 1990 | Part 21 Rept Re Rod & Bearing Assembly Failures Noted by Wolf Creek Nuclear Operating Corp During Testing.Rept Will Be Issued Outlining Root Cause & Corrective Actions to Prevent Recurrence | |
| 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 | |
| ML20246J063 | 29 August 1989 | Part 21 Rept Re Namco Refusal to Certify Design & Matls for Replacement Namco Limit Switches Supplied by Masoneilan. Initially Reported on 890825.Switches Put on QC Hold Until Final Disposition of Switches Determined | |
| ML20244D290 | 1 June 1989 | Part 21 Rept Re Buchanan 724 Terminal Blocks Supplied by Limitorque Corp,Rather than Correct Buchanan 524 Terminal Blocks.Caused by Error in Order Processing.Training Held to Ensure That Procedures Followed Correctly | |
| ML20235Y481 | 3 March 1989 | Part 21 Rept Re Cracked Welds Discovered on Striker Plates of GE Circuit Breakers.Initially Reported on 890130.GE Advised Util That Striker Plates Subj to Impact Loading Only When Breaker in Racked Out & Operated in Test Position | |
| ML20195F619 | 18 November 1988 | Part 21 Rept Re GE Magne-Blast Circuit Breakers.Initially Reported on 881116.Welds on All safety-related Breakers Will Be Repaired Prior to Entry Into Hot Shutdown | Overtravel |
| ML20151W784 | 16 August 1988 | Part 21 Rept Re Cracking of Slides Used in Four Way Valves Furnished on Actuators for MSIVs Due to Brazing/Heat Treating of Slide Matl.All Sites Using Actuators Will Be Formally Notified by 880826.List Encl | |
| ML20151B429 | 1 April 1988 | Part 21 Rept Re Inconsistencies in Gould,Inc Certificate of Compliance Received W/Class 1E Fuses Procured from Planned Maint Sys Due to Fuses Not Being Qualified for Certain Specs.Initially Reported on 880329.Fuses Remain on Hold | |
| ML20234C735 | 23 June 1987 | Supplemental Part 21 Rept Re Silicone Foam Seal Anomolies at Wolf Creek Generating Station | Fire Watch |
| ML20211P721 | 23 February 1987 | Part 21 Rept Re Rockbestos Coaxial Cable Used in Sorrento Electronics Digital & Analog high-range Radiation Monitor. Insulation Resistance at High Temp Not High Enough for Ion Chamber & Associated Electronics to Operate Properly | |
| ML20153D886 | 17 February 1986 | Part 21 Rept Re Failure of Penetration & Conduit Seal Configurations During Fire Tests.Initially Reported on 860214.Evaluation of Number & Location of Defective Seals in Progress.Nrc Assistance Requested | Fire Barrier |
| ML20137W261 | 30 September 1985 | Update to Part 21 Rept Re Insp for Cracked Welds Discovered in Generator Brackets.Insp for Callaway Unit 1 Postponed Until Next Refueling Outage (Probably Apr 1986).No Cracks Discovered During Insp at Wolf Creek | |
| ML20135E116 | 5 September 1985 | Part 21 Rept Re Use of Connectron non-IEEE Qualified Matl in Spare Part Terminal Blocks Supplied to Facilities. Appropriate Customers Notified.Terminal Blocks Should Be Reviewed to Identify Defective Matl | |
| ML20210G992 | 13 August 1985 | Part 21 Rept Re Failure of Isolated Worm Shaft Gear When Certain Critical Speeds Combined W/Repetitive Transfer of Actuator Clutch Mechanism from Manual (Handwheel) to Motor Drive Mode.Two Possible Solutions Noted | |
| ML20117B814 | 1 May 1985 | Part 21 Rept Re Ruskin Fire Dampers Installed at Facility. Initially Reported on 850426.Fire Dampers Found in Discrepant Condition Will Be Reworked in Order to Assure Integrity & Proper Functioning | |
| ML20116E848 | 23 April 1985 | Part 21 Rept Forwarding Rev 1 to Insp Procedure for Investigating Emergency Diesel Generators for Fractured Welds on Air Deflectors.Rev Will Be Forwarded to Each Facility | |
| ML20116D320 | 22 April 1985 | Part 21 Rept Re Ruskin Mfg Co Welds Used to Join Damper to Damper & Damper Section to Mullion Plates.Welds Not in Accordance W/Approved Design Drawings.Drawing 5415 Revised to Indicate Weld Spacing.Drawing of Weld Spacing Encl | |
| ML20115J136 | 15 April 1985 | Forwards Insp Procedure for Investigating Emergency Diesel Generators for Fractured or Cracked Welds to Determine If Part 21 Problem Exists,Per Jg Borman | |
| ML20100E065 | 29 March 1985 | Part 21 Rept Re Series of Cracked Welds Discovered in Generators.Welds Occurred in Conical Baffle Section of Coil Guards.All Units Will Be Inspected.Affected Plants Listed | |
| NRC-85-3024, Part 21 Rept Re Possible Undetectable Failures in ESF Actuation Sys.Initially Reported on 791107.Possibility of Undetectable Failures Remain Under Certain Circumstances Despite Change in Hardware | 22 March 1985 | Part 21 Rept Re Possible Undetectable Failures in ESF Actuation Sys.Initially Reported on 791107.Possibility of Undetectable Failures Remain Under Certain Circumstances Despite Change in Hardware | |
| ML20102B953 | 13 February 1985 | Supplemental Final Deficiency Rept (53564-K159) Re Concrete Coatings Inside Containment.Initially Reported on 841213. Coated Concrete Surfaces Inside Containment Will Perform Satisfactorily Under DBA Conditions | Coatings |
| ML20107B693 | 7 February 1985 | Final Deficiency Rept (53564-K161) Re Uncertainties in Resistance Temp Detectors Calibr.Westinghouse Evaluation Demonstrated That Revised Resistance Temp Detectors Uncertainty Acceptable | |
| ML20101T121 | 25 January 1985 | Final Deficiency Rept (53564-K159) Re Concrete Coatings Inside Containment.Initially Reported on 841213.Destructive Adhesion Tests Performed on Locations Selected by Sampling Plan to Verify Acceptability of Coatings | Coatings |
| ML20104B147 | 18 January 1985 | Final Deficiency Rept Re Insp of Structural Steel Welds. Initially Reported on 840918.Structural Concerns Identified & Corrective Action Repts Issued to Have Shims Less than 1/4 Inch Thick Placed Flush W/Mounting Frame | |
| ML20104A867 | 13 January 1985 | Final Deficiency Rept Re Standby Diesel Generator B Left Bank Turbocharger.Initially Reported on 840504.Caused by Loose Lock Nut on Left Bank Turbocharger Lubricating Oil Pump Centrifuge.Damaged Turbocharger Repaired & Inspected | |
| ML20104A817 | 13 January 1985 | Final Deficiency Rept Re Subcooling Core Monitor Alarm & Caution Relays.Initially Reported on 840821.Interposing Relays & Diodes Added to Sys to Minimize Potential for & Suppress Effects of Any Arcs Generated | |
| ML20114C914 | 13 January 1985 | Final Deficiency Rept (53546-K158) Re ASME Hangers & Component Supports.Initially Reported on 841212.Insulation Contractors Revised Procedures & Retrained Personnel to Preclude Further Tampering of Supports | |
| ML20104B924 | 13 January 1985 | Final Deficiency Rept Re Water Damaged Limitorque Motor Operators.Initially Reported on 840203.Caused by Leakage During Sys Flushing & Hydrostatic Testing Activities.Seals Added Inside Conduit & T-drains Installed in Operator | Hydrostatic |
| ML20114D108 | 13 January 1985 | Final Deficiency Rept (53564-K118) Re safety-related Field Procurement by Constructor.Initially Reported on 840103. Complete Review of Constructor safety-related Purchase Orders Completed.All Nonconformance Repts Resolved | |
| ML20114C844 | 13 January 1985 | Final Deficiency Rept Re Microbiologically Induced Corrosion in Hxs.Initially Reported on 840601.All HXs Utilizing Lake Water for Cooling Medium Eddy Current Inspected for Microbiologically Induced Corrosion | Hydrostatic |
| ML20114C798 | 13 January 1985 | Final Deficiency Rept Re Removal & Replacement of ASME Components in Support of Cleaning & Flushing Activities. Initially Reported on 840711.Investigation Into Handling & Storage of ASME Components Removed from Sys Conducted | |
| ML20112D806 | 4 January 1985 | Final Deficiency Rept Re MSIV Lockwashers.Initially Reported on 841207.Lockwashers Installed Via Startup Field Rept I-SU-122 & Will Be Completed Prior to Fuel Load | |
| ML20112F542 | 3 January 1985 | Forwards Dec 1984 Status Rept Re 10CFR50.55(e)/Part 21 Open Items | |
| RBG-19-803, Final Deficiency Rept DR-234 Re Short Cap Screws,Shallow Bolt Holes,Damaged Dowel Pins & Damaged or Missing Lock Devices for Hanger Block Bolts in Check Valves Supplied by Velan Engineering,Ltd.Initially Reported on 841128 | 28 December 1984 | Final Deficiency Rept DR-234 Re Short Cap Screws,Shallow Bolt Holes,Damaged Dowel Pins & Damaged or Missing Lock Devices for Hanger Block Bolts in Check Valves Supplied by Velan Engineering,Ltd.Initially Reported on 841128 | |
| ML20101N048 | 7 December 1984 | Final Deficiency Rept Re RCS Resistance Temp Detector Calibr Data.Initially Reported on 840801.Manufacturer Calibr Procedures Revised to Allow Recalibr at Facility.All Resistance Temp Detectors Will Be Replaced or Refurbished | |
| ML20101K853 | 7 December 1984 | Final Deficiency Rept Re Certification of Lead Auditor for Technical Metals,Inc.Initially Reported on 840524.Samples from Production Lots Remaining in Site Warehouse Chemically Analyzed & Found Acceptable | |
| ML20101L563 | 7 December 1984 | Supplemental Final Deficiency Rept Re Installation of 3-h Rated Hollow Metal Fire Door Frames.Initially Reported on 840525.Existing Caulking Replaced W/Approved Flame Retardant Adhesive Sealant | Safe Shutdown |
| ML20101N187 | 7 December 1984 | Final Deficiency Rept Re Heat Numbers W/More than One Pipe Schedule.Initially Reported on 831213.Two Piping Spool Pieces Replaced W/Correct Schedule of Pipe.Exam of All Installations of Subj Heats Revised to Prevent Recurrences | |
| ML20101L359 | 7 December 1984 | Final Deficiency Rept Re Lubricating Oil Piping Sys for Safety Injection Pumps & Centrifugal Charging Pumps. Initially Reported on 840717.Replacement of safety-related Equipment W/O QA Program Will Be Repeated Per QA Program | |
| ML20101M103 | 7 December 1984 | Final Deficiency Rept Re ITE-Gould Containment Cooling for Mechanical Interlocks.Initially Reported on 840316. Instruction Manual Revised to Change Installation Instructions of Size 5 Mechanical Interlock Assembly | |
| ML20101D301 | 5 December 1984 | Forwards Status Rept for Oct & Nov 1984 Re 10CFR50.55(e) & Part 21 Items | |
| ML20100R513 | 1 December 1984 | Final Deficiency Rept Re Standby Diesel Generator Lube Oil keep-warm Pumps Supplied by Crane-Deming.Pumps Will Be Designed for Reliability.Interim Pumps Reliable for Use Until ASME Rated Pumps Available | |
| ML20100C116 | 19 November 1984 | Deficiency Rept Re Pressurizer PORVs Preoperational Test Discrepancies.Special Operations Procedure Will Be Performed to Resolve Existing Test Discrepancies | |
| ML20099K780 | 16 November 1984 | Final Part 21 & Deficiency Rept Re Turbine Driven Auxiliary Feedwater Pump Governor Valve Stem Guide Bushings.Initially Reported 841017.Investigation Revealed That Defictive Parts Described by Terry Corp Installed at Facility | |
| ML20099K829 | 13 November 1984 | Final Part 21/deficiency Rept Re Pressurizer PORV Failing to Close During Preoperational Test.Initially Reported 841011. Resolution Will Be Provided by 841119 | Loop seal Stroke time |
| ML20099H160 | 9 November 1984 | Final Deficiency Rept Re ex-core Neutron Detector Field Cabling.Initially Reported on 841009.All Damaged Triaxial Cables & Connectors Repaired &/Or Replaced.All Insulation Panels Verified to Be Properly Reinstalled |