Semantic search
Jump to navigation
Jump to search
| Issue date | Title | Topic | |
|---|---|---|---|
| ML18016A901 | 12 April 1999 | Part 21 Rept Re Defect in Component of DSRV-16-4,Enterprise DG Sys.Caused by Potential Problem with Connecting Rod Assemblies Built Since 1986,that Have Been Converted to Use Prestressed Fasteners.Affected Rods Should Be Inspected | |
| ML20236P045 | 8 July 1998 | Part 21 Rept Re non-conformance & Potential Defect in Component of Nordberg Model FS1316HSC Standby Dg.Caused by Outer Spring Valves Mfg from Matl That Did Not Meet Specifications.Will Furnish Written Rept within 60 Days | |
| ML20203H989 | 12 December 1997 | Part 21 Rept Re Potential Manufacturing Defect of Enterprise DSR-4 & DSRV-4 Edgs.Cooper Energy Svcs Supplied 1A-7840 Adjusting Screw to Affected Utils & Sites.River Bend Station Replaced W/Acceptable Assemblies | |
| ML20198J043 | 28 July 1997 | Update to Amended Interim Part 21 Rept Re Harness/Positive Plate Lug Disconnect on List Ish Round Cell Battery.Requests 7-10 Day Extension to Complete Review | |
| ML20140G448 | 1 May 1997 | Part 21 Rept Re Potential Defect in Component of Dsrv & Dsr Enterprise Standby Diesel Generator Sys.Recommends That Springs Be Inspected on Periodic Basis,Such as During Refueling Outages | |
| ML20133E800 | 8 January 1997 | Deficiency Rept Re Nonconformance Related to Masterflow 713 Grout,Which Master Builders,Inc Has Supplied as Nuclear SR Product to 18 Npps.Cause Unknown.Requests That Listed Info Be Provided to Gain Insight as to Scope & Possible Cause | |
| ML20134L108 | 10 October 1996 | Part 21 Rept Re Defect in Component of Nordberg Model FS1316HSC Sdg.Nak Engineering,Inc Has Established & Adopted Procedures to Assemble Fuel Oil Lines & Climinate Possible Defective Condition | |
| ML20116H203 | 5 August 1996 | Part 21 Rept Re Potential Defect on Condition in Component of Nordberg Model FS1316HSC Sdg W/Fuel Injection Line Assembly Which Connects Fuel Pump to Injector.Caused by Loose Fuel Line Sleeve | |
| ML20115D200 | 9 July 1996 | Part 21 Rept Re Mfg Defect of Enterprise DSR-4 & DSRV-4 Edgs,Originally Mfg by Calcon Corp.Amot Control Corp Purchased Calcon Product Line & Maintains Design & Production.Valves Returned to Cooper Energy Svcs on 960131 | |
| ML20117G464 | 14 May 1996 | Part 21 Rept Re Cooper Bessemer Reciprocating Products,Div of Cooper Cameron Corp,Issued Ltr to Define Utils/Plants Containing Similar Equipment as Supplied on Cooper Bessemer Ksv & Enterprise Dsr EDGs | |
| ML20086D990 | 3 July 1995 | Part 21 Rept Re Two Failures of Model Vtr 500 Turbochargers Supplied by Abb Turbo Systems Ltd.Failure of Turbocharger Renders Associated EDG Incapable of Providing Rated Output. Seventeen Hole Jet Assist Wall Plates Replaced | Enforcement Discretion Commercial Grade |
| ML20073S954 | 27 June 1994 | Part 21 Rept Re Incorrect Matl Supply Discovered on Unshipped Order.Pump Div Will Notify Enertech W/ Recommendation That Items Supplied W/Incorrect Matl Be Removed & Destroyed | |
| ML20070A144 | 22 June 1994 | Part 21 Rept Re Conditions Which Affect Hydraulic Valve Operators Supplied by Bw/Ip to Enertech Co & Listed Utils. Vendor Will Notify Enertech W/Recommendations That All Items Supplied W/Incorrect Matl Be Removed & Destroyed | |
| ML20058K384 | 9 December 1993 | Part 21 Rept Re Potential Defect in Component of Dsrv & Dsr Enterprise Standby DG Sys,Regarding Potential Problem W/ Subcover Assembled Atop Power Head | |
| B14544, Update to 900827 Rept of Substantial Safety Hazard Re GE Custom 8000 Horizontal Induction Motors,Reported Per 10CFR21 for Unit 3.Util Has Determined,As Part of Review of in 91-007 That Subj GE Motors Also Used at Units 1 & 2 | 11 August 1993 | Update to 900827 Rept of Substantial Safety Hazard Re GE Custom 8000 Horizontal Induction Motors,Reported Per 10CFR21 for Unit 3.Util Has Determined,As Part of Review of in 91-007 That Subj GE Motors Also Used at Units 1 & 2 | |
| ML20127H230 | 15 January 1993 | Part 21 Rept Re Potential Defeat in Component of Dsrv & Dsr Enterprise Standby DG Sys.Starting Air Distributor Housing Assemblies Installed as Replacement Parts at Listed Sites | |
| 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 |
| ML20127P586 | 23 November 1992 | Followup to 921005 Part 21 Rept Re Potential Defect in SB/SBD-1 Housing Cover Screws.Procedure Re Replacement of SBD-1 Spring Cover Bolts Encl.All Fasteners Should Be Loosened & Removed.List of Affected Utils Encl | |
| ET-NRC-92-3707, Part 21 Rept Re Degraded Performance Condition of Westinghouse Protection Sys Overtemp Delta Temp Reactor Trip Function.Issue Not Reportable,Per 10CFR21,based on Diversity of Westinghouse Protection Sys,Per WCAP-7306 | 15 June 1992 | Part 21 Rept Re Degraded Performance Condition of Westinghouse Protection Sys Overtemp Delta Temp Reactor Trip Function.Issue Not Reportable,Per 10CFR21,based on Diversity of Westinghouse Protection Sys,Per WCAP-7306 | |
| ML20055E483 | 29 June 1990 | Part 21 Rept Re Defective Steam Generators Supplied by Westinghouse.Util Will Continue to Rept Any Defects or Other Info Reportable Under 10CFR21 Upon Discovery &/Or During Litigation | |
| ML20043G764 | 22 May 1990 | Part 21 Rept Re Potential Defect W/Speed Transmitter in Diesel Engine Control Panel of Dsrv Standby Diesel Generator.Estimate of Completion of Corrective Actions Not Possible,Since Correction Made by Other Companies | Overspeed trip |
| ML17348A162 | 27 March 1990 | Part 21 Rept Re Matls W/Programmatic Defects Supplied by Dubose Steel,Inc.Customers,Purchase Order,Items & Affected Heat Numbers Listed | |
| ML19351A294 | 9 October 1989 | Part 21 Rept Re Potential of Ambient Compensated Molded Case Circuit Breakers to Deviate from Published Info. Instantaneous Trip Check Will Be Instituted on All Class 1E Thermal/Magnetic Ambient Breakers Prior to Shipment | |
| ML20248E012 | 13 September 1989 | Supplemental Part 21 Rept Re Potential Problem W/Six Specific Engine Control Devices in Air Start,Lube Oil, Jacket Water & Crankcase Sys.Initially Reported on 890429. California Controls Co Will Redesign Valve Seating | |
| ML20247P799 | 4 April 1989 | Part 21 Rept Re Atmospheric Dump Valves.Cause of Failure Speculative But Result of Piston Ring That Failed to Seal. Resolution to Problem Requires Increasing Pilot Valve Capacity & Reworking of Plug to Enlarge Pilot Flow Area | |
| ML20207P045 | 5 October 1988 | Part 21 Rept 146 Re Defect in Left Intercooler Inlet Adapter on Standby Diesel Engine Generator.Recommends Utils Inspect Left Intake Manifold Drain as Part of Operating Plan.Addl Info Expected by 881015 | |
| ML20245D954 | 6 September 1988 | Part 21 Rept Re Condition Involving Inconel 600 Matl Used to Fabricate Steam Generator Tube Plugs & Found to Possess Microstructure Susceptible to Stress Corrosion Cracking | |
| ML20154J410 | 12 May 1988 | Addendum 1 to Supplemental Part 21 Rept 145 Re Potential Problem w/F-573-156 Pressure Sensor/Lube Oil Trip.Initially Reported on 880429.Addl 1-1/8-inch Diameter W/Deep Counterbone in Pressure Head Added to Activate Valve | |
| ML20153B619 | 29 April 1988 | Part 21 Rept Re Potential Defect in Component of Dsr or Dsrv Standby Diesel Generators Supplied to Utils.Recommends Return of Subj Components in Onsite Warehouse Storage & Suggests Surveillance of Devices Already Installed | |
| ML20151A280 | 30 March 1988 | Part 21 Rept Re Broken/Cracked Springs in Plant Pressure Valves.Magnetic Particle Exam of Springs from 18 Valves on Unit 2 Performed in Jan 1988 & Spring from Valve BS-02893 Rejected for Linear Indication.Insp Completed | |
| ML20236E485 | 27 July 1987 | Corrected Part 21 Rept Re Broken/Cracked Springs in Consolidated Type 3787WA Valves.Valves Incorrectly Identified as Type 3727WA in 870203 & 0702 Ltrs.Unit 1 Springs Received Magnetic Particle Exam | Hydrostatic |
| ML20216E472 | 28 May 1987 | Part 21 Rept 140 Re Potential Defect in Air Pressure Regulators Mfg by Bellofram.Dripwell Gasket May Fail Due to Mismachining of Gasket Seating Surface Causing Loss of Control Air & Starting Air Pressure | |
| 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 | |
| ML20214E197 | 3 February 1987 | Annotated Part 21 Rept Re Cracked D34 Springs in Alco Spring Industries,Inc Type 3727WA Safety Valves.All Springs Being Examined.Springs Displaying Relevant Indications Will Be Replaced | |
| ML20214M318 | 4 September 1986 | Potential Part 21 Rept Re Contromatics Actuator W/Jackscrew/ Handwheel Emergency Override Operator.Jackscrew/Handwheel Should Be Used for Emergency Manual Operation Only.Encl Ltr Also Sent to Listed Utils/Ae Firms | |
| ML20205F614 | 13 August 1986 | Part 21 Rept Re Connecting Rod Bolts for Dsrv Engines.Listed Procedures Recommended for Next Connecting Rod Insp, Including Replacement of Bolts Due to Cracked Threads & Large Grooves & Galls in Threads | |
| ML20206U059 | 2 July 1986 | Part 21 Rept Re Potential Defect in Component of Dsrv Standby Diesel Generators,Involving Problem W/Fastening of Engine Connecting Rod Assembly Which Could Result in Engine Nonavailability.Procedure Will Be Issued by 860718 | |
| ML20206S084 | 30 June 1986 | Part 21 Rept Re Possible Cut Wires in Wire Harness of Bbc Brown Boveri K600/K800 Circuit Breakers.Initially Reported on 860509.Safety Implications Listed.Gear Guard Designed to Prevent Cut Wires | |
| ML20154N343 | 10 March 1986 | Initial Part 21 Rept 135 Re Potential Problem W/Lube Oil Sump Tank Foot Valve of Dsrv Standby Diesel Generator for Facilities.Cause Not Determined.Recommends Utils Inspect Condition of Foot Valve Liners & Notify Tdi of Findings | |
| ML20214D507 | 19 February 1986 | Final Significant Deficiency Rept SD 414/86-01 Re Emergency Diesel Engine 2B Main Bearing 7 Failure.Initially Reported on 860116.Caused by Misinstallation by Mfg,Sand Blast Grit &/Or Oil Contamination.Engine Rebuilt | |
| ML20137P238 | 16 January 1986 | Significant Deficiency Rept SD 414/86-01 Re Failure of Main Bearing Shell 7 During Break in Run of Tdi Unit 2B Diesel Generator.Initially Reported on 851219.Installation Procedures Enhanced.Crankshaft Journal Cleaned | |
| ML20137P241 | 16 January 1986 | Significant Deficiency & Part 21 Rept SD 414/86-02 Re Valve Spring Failures on Tdi DMRV-16-4 Diesel Engines.Initially Reported on 851217.Springs Will Be Changed During First Appropriate Refueling Outage | |
| ML20137N499 | 26 December 1985 | Significant Deficiency Rept 414/85-12 Re Missing Spring in Air Actuator of Pressurized Porv.Initially Reported on 851206.Valve W/Missing Spring Replaced.Investigation Continuing | |
| ML20137K960 | 10 December 1985 | Part 21 Rept Re Actuators Having Only One of Required Two Springs Which Could Result in Reduction of Integrity of Reactor Coolant Boundary.Valves Supplied to McGuire Units 1 & 2 & Catawba Unit 2.Catawba Unit 2 Valve Corrected | |
| ML20138B720 | 22 November 1985 | Final Significant Deficiency Rept SD 414/85-10 Re Failure of Hydrogen Skimmer Fan Motors Supplied by Joy Mfg Co.Initially Reported on 850626.Cause Undetermined.Fan Motors Reassembled,Retested & Reinstalled | |
| ML20198C498 | 6 November 1985 | Part 21 Rept Re Potential Defect in Dsr or Dsrv Standby Diesel Generator Intake & Exhaust Valve Springs Mfg by Betts Spring Co.Users Recommended to Inspect Engines for Broken Springs & Identify Original Mfg | |
| ML20136E582 | 5 November 1985 | Significant Deficiency Rept 414/85-11 Re High Priority Mods Required Prior to Fuel Loading.Administrative Controls Implemented to Control Personnel Access to Penetration Area During in-core Instrument Movement | |
| ML20198C208 | 24 October 1985 | Significant Deficiency Rept SD 414/85-11 Re Unconsidered Effects of Radiation Streaming Through Reactor Bldg Penetrations from post-LOCA Atmospheric Activity.Initially Reported on 850924 | Overexposure |
| ML20205F470 | 18 October 1985 | Final Part 21 & Significant Deficiency Rept SD 414/85-05 Re Potential Problem W/Starting Air Check Valves in on-engine Modified Starting Air Piping.Initially Reported on 850419. Modified Disk Assemblies Installed |