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Issue date | Title | Topic | |
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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 | |
ML18038A897 | 7 September 1994 | Part 21 Rept Re Defect in Latching Mechanism of Potter & Brumfield Relay on C&D High Voltage Shut Down Alarm Assembly Printed Circuit Boards.Pull Test on Relay Reset Button Incorporated Into Receiving Insp Procedures | |
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 | |
ML19294A708 | 2 March 1979 | Suppl Info Re Reportable Occurrence:During Nondestructive Examinations of Main Steam Relief Valves,Linear Indications of Minor Casting Defects Were Found During Mod of Valves by Offsite Facility.Defects Were Ground Out & Weld Repaired | Nondestructive Examination Liquid penetrant |
ML19321A969 | 30 June 1980 | Part 21 Rept Re Defective Terry Turbine Co HPCI Turbine. Caused by Machining Error in Fabrication of Mechanical Overspeed Trip Valve Body Assembly Which Resulted in HPCI Remaining in Tripped Condition.Valve Body Replaced | |
ML19325C952 | 29 September 1989 | Part 21 Rept Re Potential Common Failure of SMB-000 & SMB-00 Cam Type Torque Switches Supplied Prior to 1981 & 1976. Vendor Recommends That Switch W/Fiber Spacer Be Replaced | |
ML19325E086 | 16 October 1989 | Followup Part 21 Rept Re Class 1E Battery Chargers W/ Transformers Running at Temps Exceeding Those Used in Qualification Rept When Operating at or Near Full Load Rating of Equipment.Listed Corrective Actions Underway | |
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 | |
ML19354D717 | 19 December 1989 | Part 21 Rept Re Use of Electrical Components & Cabling in Air Conditioning Units Not Environmentally Qualified. Initially Reported on 890920.Nonqualified Cable Will Be Replaced & Control Panel Relocated | Condition Adverse to Quality |
ML20003C056 | 20 February 1981 | Interim Deficiency Rept Re Flammability of Suspended Ceiling Tile in Control Rooms at Facilities.Util Evaluating Ceiling Sys Design & Available Alternatives.Next Rept Will Be Transmitted by 810403 | |
ML20005G683 | 5 January 1990 | Part 21 Rept Re Installation Instructions for Grommet Use Range for Patel Conduit Seal P/N 841206.Conduit Seals in Environ Qualification Applications Inspected for Proper Wire Use Range & Grommets Replaced | |
ML20011F194 | 22 February 1990 | Part 21 Rept Re Abb 27/59 Relay Catalog Series 211L.Solder Connections to Printed Wiring Runs on Bottom of Circuit Board Deteriorated Due to Thermal Stress.No Actual Failure Occurred & Relays to Be Changed at Next Outage | |
ML20011F597 | 22 February 1990 | Part 21 Rept Re Solder Connections in Abb 27/59 Relays Deteriorated Due to Thermal Stress,Causing Bonding of Printed Wiring Pattern to Glass Epoxy Circuit Board.Interim Circuit Board W/Larger Pads & Higher Wattage Will Be Used | |
ML20012A901 | 27 February 1990 | Suppls 900213 10CFR21 Rept Re Chilled Water Sys Operation. Evaluation of Crystal River Determined That Postulated High Energy Line Break in Intermediate Bldg May Be Subj to Steam Loads Higher than Normal Loads,Causing Rising Water Temp | |
ML20012C240 | 16 February 1990 | Part 21 Rept Re Defective Pieces of ASTM A500 Square Tubing Mfg by UNR-Leavitt.Initially Reported by Licensee on 900215. Limited Number of 29 Pieces Determined to Actually Be Defective,Per TVA Visual Insp.Matl Will Be Returned | |
ML20023D036 | 23 October 1981 | Deficiency Rept Re Errors & Discrepancies Contained in HVAC Matl Certifications.Procurement Documentation Will Be Revalidated,Document & Records Mgt Program Will Be Developed & Qa/Qc Personnel Will Be Added.Also Reportable Per Part 21 | |
ML20024B695 | 30 June 1983 | Part 21 Rept Re Deficiency in Bechtel Design of Ac & Dc Control Circuits for Facilities.Design Changes to Affected Motor Controller & Power Circuit Breaker Compartments Initiated.Also Reported Per 10CFR50.55(e) by Snupps | |
ML20024B777 | 7 July 1983 | Final Deficiency Rept 83-03 Re Medium Voltage Circuit Breakers of Same Type Installed at Limerick Which Inadvertently Closed After Completion of Spring Charging Due to Slipped Close Latch,Discussed in Brown Boveri 830524 Ltr | |
ML20024B784 | 28 April 1983 | Followup Interim Rept Re Potential Deficiency in 5HK Switchgear Supplied by Brown Boveri.Circuit Breaker Inadvertently Closed & Tripped Following Spring Charging. Light Spring Added to Close Latch | |
ML20024D063 | 22 July 1983 | Final Significant Deficiency Rept 83-10 Re Excessive Ac/Dc Control Circuit Voltage Drop in Circuits Designed by Bechtel.Initially Reported on 830623.Also Reportable Under Part 21 | |
ML20024D637 | 29 July 1983 | Final Significant Deficiency Rept 83-09,re 1 1/2-inch Hy-Drop Stainless Steel Valves Furnished by Yarway Corp. Reexam of Design,Procurement & Site Receiving Records Indicates Original Data Based on Inaccurate Info | |
ML20024E866 | 30 December 1982 | First Interim Deficiency Rept Re Failure of safety-related Electrical Equipment to Meet Requirements.Initially Reported on 821203.Equipment Potentially Affected Are Panels & Cabinets.Next Rept to Be Filed by 830228 | |
ML20028A010 | 28 October 1982 | Part 21 Rept Re Potential Defect in Component of Dsrv or Dsr Standby Diesel Generator.Problem Exists W/Engine Piston Skirt Casting Which Could Result in Engine Nonavailability | |
ML20028C248 | 30 December 1982 | First Interim Deficiency Rept Re Insufficient Length of Starting Air Valve Assembly Capscrews.Initially Reported on 821201.Transamerica Delaval,Inc Changed Designed Length of Capscrew.Next Rept by 830415.Also Reportable Per Part 21 | |
ML20028E148 | 14 January 1983 | Part 21 Rept Re Possible Adverse Effects of Cross Flow on Control Rod Assemblies for Facilities.Concern Not Substantial Safety Hazard.Design Change Will Be Implemented | |
ML20028E319 | 10 January 1983 | Interim Deficiency Rept 82-09 Re Mechanical Snubber Bracket Interference.Initially Reported on 821203.Design Drawings & Vendor Production Info Under Review to Identify Suspect Snubber Assemblies.Next Rept Expected by 830215 | |
ML20028E651 | 21 January 1983 | Final Deficiency Repts 82-10 & 11 Re Rigid Strut Pins Mfg by Elcen.Initially Reported on 821223.Test Results Indicate No Load Capacity Data Values Violated.If Such Pins Were Used,Design Margins Not Exceeded | |
ML20028E764 | 21 January 1983 | Interim Deficiency Rept 83-01 Re Westinghouse Emd Gate Valve Position Indication.Initially Reported on 821223.Gate Valve Applications in Cold & Hot Leg Safety Injection Lines May Require Mod.Investigation Continuing.Next Rept by 830531 | |
ML20040C582 | 18 January 1982 | Fourth Interim Deficiency Rept on Deficiency 14 & Final Rept on Deficiency 21 Re Completion of as-built Drawings, Initially Reported 810122.Unit-unique as-built Drawing Program Being Investigated.Addl Rept by 820331 | |
ML20040C708 | 18 January 1982 | First Interim Deficiency Rept Re Possible Out of Phase Transfer of Emergency Bus for Stride Design,Initially Reported 811218.GE Studying Design Change to Resolve Problem.Next Rept Will Be Submitted by 830301 | |
ML20040E532 | 27 January 1982 | Third Interim Deficiency Rept Re Reactor Core Isolation Cooling Steam Line Break,Initially Reported 810630.Util Still Investigating GE Proposed Solution to Add 1-inch Bypass to Limit Downstream Flow in Event of Rupture | |
ML20040E643 | 26 January 1982 | Fifth Interim Deficiency Rept Re Alleged Atlas Machine & Iron Works Falsification of QA Documentation Packages for Nine Drywell Framed Embedments,Initially Reported on 810528. Welding Tests Will Be Verified.Next Rept Due by 820618 | |
ML20040F740 | 1 February 1982 | Part 21 Rept Re Strainer Basket in Diesel Generator Lube Oil Strainer Mfg by Zurn Industries.Mesh Liner Tears Loose at Basket Top & Disintegrates.Baskets to Be Replaced in All Facilities W/New Qualified Design in 6 Months | |
ML20040G858 | 3 February 1982 | Part 21 Rept Re Rotation of Inboard babbit-lined Bearing Mount Causing Partial Blockage of Oil Supply.Caused by Lack of Antirotation Pin or Device.Set Screw Installed in Upper Half of Bearing Mount to Prevent Rotation | Safe Shutdown |
ML20041A424 | 10 February 1982 | Deficiency Rept Re Failure of Transamerica Delaval to Promptly Correct Deficiencies,Initially Reported 820114. Deficiency Sheet Discussed W/Delaval Mgt.Next Rept by 820320.Also Reported Per Part 21 | |
ML20041B129 | 12 February 1982 | Part 21 Rept Re Misinterpretation of American Welding Soc Welding Symbol.Problem Exists at Braidwood But Not at Vogtle or St Lucie | |
ML20041F756 | 5 March 1982 | Fourth Interim Deficiency Rept Re GE Support of 10CFR50.55(e),initially Reported 810810.Util Awaiting Addl Clarification from Nrc.Next Rept Expected by 820930 | |
ML20049H696 | 22 February 1982 | Part 21 Rept Re HVAC Stiffener Welding of Ductwork Supplied to Facilities.Problem Exists at Marble Hill,But Does Not Exist at St Lucie or Vogtle | |
ML20049J439 | 3 March 1982 | First Interim Deficiency Rept Re Check Valve Leak in Air Start Sys of Standing Diesel Generators,Initially Reported on 820209.Problem Under Investigation by Vendor.Next Rept Expected by 820528.Also Reported Per Part 21 | |
ML20049J458 | 25 February 1982 | Suppl Deficiency Rept Re High Pressure Core Spray Component Wiring Discrepancies.Util Unable to Complete Corrective Actions by 820205 as Committed in 811116 Ltr.Drawings Require Vendor Revisions.Drawings Expected by 820805 | |
ML20049J487 | 25 February 1982 | Final Deficiency Rept Re Failure to Hydrotest Mechanical Penetration Assemblies,Originally Reported on 810814.STRIDE Spec 400-09 Revised.Also Reported Per Part 21 | Hydrostatic |
ML20050B022 | 19 March 1982 | Final Deficiency Rept 2 Re Failure of Transamerica Delaval to Correct Violations Identified During Audits 79V-38 & 80V-39 Promptly,Due to Improper QA Program Implementation, Initially Reported on 820114.Also Reported Per Part 21 | |
ML20050B599 | 1 April 1982 | Fifth Interim Rept Re Pressure Drop in Essential Svc Water Piping,Originally Reported 801210.Util Still Evaluating Deficiency.Next Rept by 820715 | |
ML20052A607 | 19 April 1982 | Suppl to Final Deficiency Rept Re Standby Gas Treatment Sys Charcoal Absorber,Initially Reported 800508.Util Unable to Meet Corrective Action Completion Date in 811209 Final Rept Due to Deferral of Const.Also Reported Per Part 21 | |
ML20052H908 | 11 May 1982 | Final Deficiency Rept Re Diesel Generator Strainer Basket Defect,Initially Reported on 820423.New Basket Designed & Tested & Will Be Installed Prior to Fuel Load | |
ML20053E120 | 28 May 1982 | Second Interim Deficiency Rept Re Check Valve Leak in Air Start Sys of Standby Diesel Generators,Initially Reported 820209.Evaluation by Vendor Underway.Also Reported Per Part 21 |