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| Issue date | Title | Topic | |
|---|---|---|---|
| L-91-002, Supplemental Part 21 Rept Re GE Reactor Trip Breakers Used in safety-grade Equipment.Initially Reported on 901228.List of Plants Supplied w/C-E Breakers Encl | 4 January 1991 | Supplemental Part 21 Rept Re GE Reactor Trip Breakers Used in safety-grade Equipment.Initially Reported on 901228.List of Plants Supplied w/C-E Breakers Encl | |
| LD-93-003, Part 21 Rept Re Defect in Potter & Brumfield Model 170-1 Relay.One of Two Rotor Return Springs Broke & Portion of Spring Lodged Between Rotor & Stator.Rotor Springs Supplied by Lewis Spring Co.Info Bulletin Being Prepared | 13 January 1993 | Part 21 Rept Re Defect in Potter & Brumfield Model 170-1 Relay.One of Two Rotor Return Springs Broke & Portion of Spring Lodged Between Rotor & Stator.Rotor Springs Supplied by Lewis Spring Co.Info Bulletin Being Prepared | |
| LD-93-177, Part 21 Rept Re Potter & Brumfield motor-driven Relays Models 7032,7033 & 7034 Supplied by ABB/C-E to Entergy Operations Waterford Steam Electric Station,Unit 3.Eighty- Two Percent of Affected Relays Tested | 23 December 1993 | Part 21 Rept Re Potter & Brumfield motor-driven Relays Models 7032,7033 & 7034 Supplied by ABB/C-E to Entergy Operations Waterford Steam Electric Station,Unit 3.Eighty- Two Percent of Affected Relays Tested | Commercial Grade Dedication |
| LD-94-019, Suppl Part 21 Rept Re Notification of Potential Defect in motor-driven Relays Supplied by ABB-CE to Waterford Steam Electric Station Unit 3.Entergy Oparations Aware of Info | 16 March 1994 | Suppl Part 21 Rept Re Notification of Potential Defect in motor-driven Relays Supplied by ABB-CE to Waterford Steam Electric Station Unit 3.Entergy Oparations Aware of Info | |
| LD-96-009, Part 21 Rept Re Potential Instrumentation Decalibr at Low Power.Affected Utils Should Ensure That Log Power Channels Properly Calibr & cross-correlated to Linear Power Channels at 100% Reactor Power | 15 April 1996 | Part 21 Rept Re Potential Instrumentation Decalibr at Low Power.Affected Utils Should Ensure That Log Power Channels Properly Calibr & cross-correlated to Linear Power Channels at 100% Reactor Power | |
| LD-97-024, Part 21 Rept Re Error in Energy Redistribution Factor Used in LOCA Analysis for Listed Plants for Which ABB-CE Performed Analysis.Issued Recommendations Info Bulletin 97-004 | 14 August 1997 | Part 21 Rept Re Error in Energy Redistribution Factor Used in LOCA Analysis for Listed Plants for Which ABB-CE Performed Analysis.Issued Recommendations Info Bulletin 97-004 | |
| LD-97-028, Part 21 Rept Re Contamination of Lubricant Which Has Led to Hardening of Lubricant in Certain Potter & Brumfield Mdr Relay Models 170-1 & 7032.Will Distribute Copy of Rept to Utils Having ABB-CE Designed Nuclear Steam Supply Sys | 13 October 1997 | Part 21 Rept Re Contamination of Lubricant Which Has Led to Hardening of Lubricant in Certain Potter & Brumfield Mdr Relay Models 170-1 & 7032.Will Distribute Copy of Rept to Utils Having ABB-CE Designed Nuclear Steam Supply Sys | |
| LD-97-033, Part 21 Rept Re Defect in Potter & Brumfield Mdr Relays, Models 170-1 & 7032.Extended Problem to Include All Mdr Relay Models W/Date Codes 93XX-95XX.Root Cause Analysis, Written Rept & Recommended Corrective Actions Due by 971201 | 20 November 1997 | Part 21 Rept Re Defect in Potter & Brumfield Mdr Relays, Models 170-1 & 7032.Extended Problem to Include All Mdr Relay Models W/Date Codes 93XX-95XX.Root Cause Analysis, Written Rept & Recommended Corrective Actions Due by 971201 | |
| 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 | |
| ML18065B011 | 18 October 1996 | Part 21 Rept Re Application of Certain Aspects of ABB-CE Safety Analysis Methodology | |
| ML18065B135 | 6 January 1998 | Part 21 Rept Re Use of Deltstrat Code for RCS Flow Rate Determination.Code Corrects for Temps to Determine Hot Leg Bulk Coolant Temp | |
| ML18066A277 | 13 August 1998 | Part 21 Rept Re Deficiency in CE Current Screening Methodology for Determining Limiting Fuel Assembly for Detailed PWR thermal-hydraulic Sa.Evaluations Were Performed for Affected Plants to Determine Effect of Deficiency | |
| ML19208A961 | 14 September 1979 | Interim Deficiency Rept 13 Re Improper Consolidation of Concrete on Containment Bldg Dome Parapet Wall Placement 521-1B.Vibrators,laborers & Inspectors Were Added to Ensure Proper Placement of Concrete.Next Rept Issue Date Is 800201 | High winds Tornado Generated Missile |
| ML19209A759 | 28 September 1979 | Discusses Status of Const Deficiency 11.Planned Mod of Switchgear Breaker Position Will Be Delayed Due to Shipping Date Slippage.Final Rept Will Be Submitted by 791201 | |
| ML19209C424 | 28 September 1979 | Potential Reportable Incident 21 Re Pressure Transmitter lift-off Voltage Problem.Device Will Not Start in Certain Combinations.Since Problem Does Not Exceed Tech Spec Limits, Failure Should Not Be Classified as RO | |
| ML19250A638 | 14 September 1979 | Interim Deficiency Rept 13:during Placement of Concrete for Reactor Containment Bldg,Improper Consolidation of Concrete Observed.Testing & Repair Underway.Final Rept by 800201 | |
| ML19250A640 | 28 September 1979 | Deficiency Rept 21:Rosemont 1153A Transmitter Would Not Start for Certain Combinations of Power Supply Voltage,Zero Suppression or Ambient Temp.No Liftoff Voltage Problems If Power Supply Voltage Exceeds 30 Volts | |
| ML19253A570 | 31 August 1979 | Final Rept of Significant Const Deficiency 12 Re 4-inch,45 Degree Ell & 4-inch,90 Degree Ell Pipe Fittings Subj to Cracking When Welded.Caused by Erroneous Identification of Piping Matl as High Carbon Steel | |
| ML19253A830 | 31 August 1979 | Final Deficiency Rept Re Matl Used to Construct Pipe Fittings.Corrective Actions:Manufacturer Has Been Notified of overly-high Carbon Content in Steel Pipe Fittings & Those Already Installed Have Been Removed from Svc | |
| ML19256E852 | 29 October 1979 | Significant Const Deficiency 13,interim Rept,Suppl 1,re Reactor Containment Bldg Dome Concrete. Calculations Indicate Only Small Portion of Wall Lowers Dome Support Framework | |
| ML19257C970 | 8 January 1980 | Part 21 Rept 80-190-000:spring Used in Some NH91-96 & 98 Milliampere Hydramotor Acuators Discovered Mfg from Incorrect Matl.Notifications to Affected Customers Encl | |
| ML19257D779 | 30 January 1980 | Interim Deficiency Rept Re LPIS Pumps Impeller Shaft Retaining Mechanism Failure.Repairs on One Pump Complete; Repairs on Second Pump Delayed Until Apr 1980.Final Rept Will Be Forwarded on 800501 | |
| ML19257D780 | 30 January 1980 | Interim Deficiency Rept Re Reactor Containment Dome.Initial Date of 800201 for Final Rept Cannot Be Met.All Repairs Complete W/Verification Testing Currently Underway.Final Rept Will Be Forwarded 800415 | |
| ML19260B191 | 30 November 1979 | Deficiency Rept 11 Re Switchgear Breaker Position Switch Operator Defect.Replacement Installation Expected in Dec. Final Rept to Be Submitted by 800331 | |
| ML19260C548 | 2 January 1980 | Interim Rept of Const Deficiency 15:on 791126,procedural & Performance Deficiencies Identified in Ultrasonis Testing of Structural Welds.Ebasco Engineering Studying Methods to Ensure That Affected Welds Meet Design Requirements | |
| ML19273C195 | 29 October 1979 | Significant Const Deficiency 14 Interim Rept, Unsatisfactory Impact Tests on Pipe Penetration Assemblies 3 & 4. Caused by Fatigue Produced by Typical Dynamic Events.Matl Returned to Manufacturer for Repair | |
| ML19296B584 | 30 November 1979 | Advises of Addl Time Required to Close Out Const Deficiency Re Noncompliance W/Welding Requirements for Heating, Ventilation & Air Conditioning Seismic Support Hangers.Final Rept Will Be Submitted on 790331 | |
| ML19305A893 | 14 March 1980 | Discusses Status of Deficiency Re Const of Shafts,Springs & Roller Pin of Emergency Diesel Generators.Delays Encountered W/Hoisting Mechanism of Overhead Monorail Crane.Final Rept Will Be Submitted by 800930 | |
| ML19305E443 | 18 March 1980 | Final Deficiency Rept Re Switchgear Breaker Position Switch Operator Defect.All 33 Breaker Switch Operators Have Been Replaced W/More Rigid Design Assemblies | |
| ML19305E631 | 28 April 1980 | Final Rept on Deficiency Re Unsatisfactory Impact Tests on Pipe Penetration Assemblies 3 & 4 Supplied by Associated Piping & Engineering Corp.Matl Returned to Vendor for Mod &/Or Replacement.Test Results Now Acceptable | Hydrostatic |
| ML19308A222 | 29 December 1978 | Addl Interim Report of Significant Const Deficiency 9, Noncompliance to Welding Requirements for HVAC Seismic Support Hanger to Embedded Plates. in Addition to Immediate Corrective Actions,Hanger to Plate Welds Are Being Repaired | Nondestructive Examination Liquid penetrant |
| ML19309A794 | 18 March 1980 | Final Rept of Significant Deficiency 11,re Switchgear Breaker Position Switch Operator defect.Thirty-three Breaker Position Switch Operators Replaced W/Newly Designed GE Assemblies.Operators Have Guides Preventing Bending | |
| ML19309B897 | 31 March 1980 | Final Deficiency Rept Re Noncompliance to Welding Requirements for Heating,Ventilation & Air Conditioning Seismic Support Hanger to Embedded Plates.All Affected Welds Repaired & Insps Documented for QA Files | Time of Discovery |
| ML19309F201 | 8 April 1980 | Final Rept of Significant Const Deficiency 13 Re Defects in Containment Bldg Dome Concrete.Caused by Improper Random Vibration Due to Vibrators That Were Inadequate in Size & Number.Qualified Job Superintendent Will Be Provided | |
| ML19309F928 | 8 April 1980 | Supplementary Deficiency Rept Re AH90 & NH90 Series Actuators Supplied by Itt General Controls.Itt General Control Will Supply Actuator Force Values & Torque & Damper Torque Values Will Be Compared.Customer List Encl | |
| ML19309G372 | 30 April 1980 | Final Rept of Significant Const Deficiency 14 Re Unsatisfactory Impact Tests on Pipe Penetration Assemblies 3 & 4.Cause Not Stated.Scope of QC Personnel Indoctrination Increased Re Emphasis on Preparation of Qc/Qa Records | Hydrostatic |
| ML19309G793 | 18 April 1980 | Final Rept of Significant Const Deficiency 14 Re Unsatisfactory Impact Tests on Pipe Penetration Assemblies. QC Training Program Provides More Emphasis on Preparation of Qc/Qa Records.Penetration Assemblies Were Returned | Hydrostatic |
| ML19318A051 | 10 June 1980 | Final Deficiency Re Loose Control Element Drive Mechanism Guide cones.C-E Secured & Tightened Each Guide Cone to 60 Ft Lb Torque Value.Completed Spot & Tack Welds Visually Inspected & Approved | |
| ML19318D238 | 2 July 1980 | Interim Rept of Significant Const Deficiency 17 Re Base Metal Defects in Main Steam & Feedwater Containment Penetration Anchors.Evaluation Underway to Establish Repair Techniques.Final Rept Will Be Forwarded by 810301 | |
| ML19320A601 | 27 June 1980 | Final Significant Const Deficiency Rept 16 Re Control Element Drive Mechanism Guide Cones & Penetration Assemblies Interface.Offset Condition Exists Which Could Produce Interference on Control Assembly Shaft | Liquid penetrant |
| ML19321A896 | 8 July 1980 | Interim Part 21 Rept Re Defective Itt Actuators in Dampers. Customer Notification Encl.Jobs Classified Nonnuclear safety-related Are Not Reportable.Actuators Supplied for Other Jobs Are Considered Purchaser Responsibility | |
| ML19322A157 | 27 December 1978 | Bolted Connections That Connect Horizontal Channel Sections of the Termination Subassembly to the Header Mounting Brackets Were Loose or Disengaged.Termination sub-assembly Connections Were Redesigned to Use Welded Pemnuts | |
| ML19323D529 | 31 March 1980 | Final Rept of Significant Const Deficiency 9,re Welding of Heating,Ventilation & Air Conditioning Seismic Support Hangers to Embedded Plates.Caused by Engineering Error. Contractor Initiated Repairs for Hanger to Embedded Plates | Time of Discovery |
| ML19323F819 | 21 May 1980 | Final Const Deficiency Rept 5 Re Impeller Shaft Retaining Mechanism Failure in Low Presssure Safety Injection Pumps, Discovered on 780216.Exact Cause Not Known But May Be Due to Gasket Deterioration.Locking Devices Modified | |
| ML19323J158 | 10 June 1980 | Final Rept of Significant Const Deficiency 7 Re Loose Control Element Drive Mechanism Guide cones.C-E Completed Corrective Repairs During Wk Ending 800315.Guide Cones Were Firmly Locked in Place,Torqued & Spot Welded | |
| ML19330A797 | 20 June 1980 | Part 21 Rept Re Potential Interference in Full Function of Bergen-Paterson Strut Assembly W/Pacific Scientific Co Mechanical Shock Arrestor.Customers Will Be Notified of Affected Items & Recommended Solution | |
| ML19330B664 | 31 July 1980 | Final Deficiency Rept for Significant Const Deficiency 15 Re Procedural & Performance Deficiencies in Ultrasonic Testing of Structural Welds.Caused by Mfg Procedural & Ebasco ASME Insp Deficiencies.Mfg & Insp Responsibilities Established | Coatings |
| ML19338C789 | 29 August 1980 | Deficiency Rept Re Cracking Problem in Electrical Wiring Conduit.Caused by Overbending Below Original Published Min Inside Bend Diameters.Will Replace Conduits Installed at Bend Diameters Below Min Inside Bend Diameter | |
| ML19338E950 | 1 October 1980 | Rept on Significant Const Deficiency 18 Re Flexible Liquid Tight Wiring Conduit Covering Failure (Anaconda).Deficiency Under Evaluation.Rept Will Be Submitted by 801017 | |
| ML19340D055 | 15 December 1980 | Interim Significant Deficiency Rept 19,Target Rock Motor Operated Valves-Bushing Not Staked. High Pressure Safety Injection Header Shutoff Valve Found W/Loose Bushing. Bushings Will Be Corrected & Insp by 810630 |