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Issue date | Title | Topic | |
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05000361/LER-1982-004 | 7 April 1982 | LER 82-004/03L-0:on 820308,containment Purge Isolation Sys (Cpis) Operability Found Not Demonstrated Per Tech Spec 4.99.Caused by Return of Purge Valves to Svc After Valve Seat Cleaning W/O Verifying Cpis Operability | |
05000361/LER-1982-005 | 8 April 1982 | LER 82-005/03L-0:on 820309,control Room Emergency Air Cleanup Sys Failed to Start Upon Receiving Spurious Toxic Gas Isolation Signal.Caused by Incorrect Positioning of Kirk Key.Caution Notes Incorporated Into Procedures | |
05000361/LER-1982-007 | 7 April 1982 | LER 82-007/03L-0:on 820303,cable Riser Shaft Water Spray Fire Protection Sys Inadvertently Activated & Fire Retardant Barrier Matl Damaged by Water.Caused by Personnel Communication Failure During Maint | |
05000361/LER-1982-009 | 12 April 1982 | LER 82-009/01T-0:on 820325,Bechtel Informed Util of Location of Lumigraph Indicators Model 9270 Mfg W/Incorrect Resistors in Indicator Circuits.Caused by Improper Design of Indicator Circuits.Resistors to Be Replaced Prior to Full Power | |
05000361/LER-1982-024 | 23 June 1982 | LER 82-024/01T-0:on 820606,w/discharge Valve 2HV4713 Inoperable Rendering Flowpath for Motor Driven Auxiliary Feedwater Pump 2P-141 Inoperable,Plant Entered Mode 3. Investigation Re Cause of Oversight Continuing | |
05000361/LER-1982-025 | 23 June 1982 | LER 82-025/01T-0:on 820609,steam Driven Auxiliary Feedwater Pump 2P-140 Declared Inoperable.Impact of Outstanding Work Order Affecting Pump Not Recognized by Operating Personnel. Investigation Re Cause of Oversight Continuing | |
05000361/LER-1982-094, Followup LER 82-094/03X-2:on 820808,stroke Time for Isolation Valve 2HV-0517 Hot Leg Could Not Be Measured Due to Simultaneous Open & Closed Position Indications.Caused by Loosening of Limit Switch Due to Vibration.Switch Adjus | 30 March 1983 | Followup LER 82-094/03X-2:on 820808,stroke Time for Isolation Valve 2HV-0517 Hot Leg Could Not Be Measured Due to Simultaneous Open & Closed Position Indications.Caused by Loosening of Limit Switch Due to Vibration.Switch Adjusted | Stroke time |
05000361/LER-1982-103, Followup LER 82-103/03X-2:on 820825,sample Isolation Valve 2HV-0517 Hot Leg Breaker 2BJ-23 Tripped on Overload While Attempting to Close Valve.Caused by burned-out Motor on Operator.Motor Replaced.Procedures Revised | 30 March 1983 | Followup LER 82-103/03X-2:on 820825,sample Isolation Valve 2HV-0517 Hot Leg Breaker 2BJ-23 Tripped on Overload While Attempting to Close Valve.Caused by burned-out Motor on Operator.Motor Replaced.Procedures Revised | |
05000361/LER-1984-009, Revised LER 84-009-01:on 840214,analysis of Startup Test Data for Units 2 & 3 Established That Calculated Thermal Power May Become Decalibr Relative to Secondary Calometric Power.Procedure S023-5-1 Revised | 23 July 1984 | Revised LER 84-009-01:on 840214,analysis of Startup Test Data for Units 2 & 3 Established That Calculated Thermal Power May Become Decalibr Relative to Secondary Calometric Power.Procedure S023-5-1 Revised | Anticipated operational occurrence |
05000361/LER-1990-011, Corrected LER 90-011-01:on 900722,AFW Bypass Control Valve 3HV-4763 Declared Inoperable After Failing to Close Due to Mechanical Failure of Solenoid Valve.Valve Manually Isolated & Solenoid Valve Replaced | 4 December 1992 | Corrected LER 90-011-01:on 900722,AFW Bypass Control Valve 3HV-4763 Declared Inoperable After Failing to Close Due to Mechanical Failure of Solenoid Valve.Valve Manually Isolated & Solenoid Valve Replaced | |
05000361/LER-1993-004 | 1 September 1993 | LER 93-004-00:on 930802,portions of Shift Surveillance Not Performed.Caused by Personnel Error.Plant Operators Counseled on procedures.W/930901 Ltr | |
05000361/LER-1993-005 | 7 September 1993 | LER 93-005-00:on 930810,identified Improper Configuration of Units 2 & 3 MSIV Enclosure Blowout Panels Due to Inadequate MP for Installation.Restored Blowout Panels to Operability on 920930.W/930907 Ltr | Probabilistic Risk Assessment Tornado Generated Missile |
05000361/LER-1998-003, LOCA Evaluation of Safety Significance of Failure of Emergency Sump Valve Linestarter (LER 1998-003) | 6 April 1998 | LOCA Evaluation of Safety Significance of Failure of Emergency Sump Valve Linestarter (LER 1998-003) | Boric Acid Probabilistic Risk Assessment |
05000362/LER-1982-006, Ro:On 821217,incident Involving Emergency Safety Features Actuation Signal Occurred.Written Followup Rept W/Interim LER 82-006 Will Be Submitted by 821228 | 27 December 1982 | Ro:On 821217,incident Involving Emergency Safety Features Actuation Signal Occurred.Written Followup Rept W/Interim LER 82-006 Will Be Submitted by 821228 | |
05000362/LER-1983-065, Corrected LER 83-065/03L-0:on 830905 & 12,high-range in-containment Radiation Monitor 3RI-7820-1 Declared Inoperable After Discovery in Failed Low Condition.Caused by Faulty Electrical Cable Penetration Path | 5 October 1983 | Corrected LER 83-065/03L-0:on 830905 & 12,high-range in-containment Radiation Monitor 3RI-7820-1 Declared Inoperable After Discovery in Failed Low Condition.Caused by Faulty Electrical Cable Penetration Path | |
05000362/LER-1983-073, /03L-0:on 830929,boronmeter 3AE0203 Rendered Inoperable When Manual Isolation Valves S31208MU084 & S31208MU091 Closed.Caused by Improper Sys Lineup.Corrective Actions Described in LER 83-073/03L-0 | 27 October 1983 | /03L-0:on 830929,boronmeter 3AE0203 Rendered Inoperable When Manual Isolation Valves S31208MU084 & S31208MU091 Closed.Caused by Improper Sys Lineup.Corrective Actions Described in LER 83-073/03L-0 | |
05000362/LER-1983-097, Revised LER 83-097/03L-1:on 831029 & 30,control Element Assembly (CEA) 57 Dropped More than 19 Inches & CEA 61 Dropped More than 19 Inches on 831101.Caused by Sluggishness of CEA Grippers | 20 January 1984 | Revised LER 83-097/03L-1:on 831029 & 30,control Element Assembly (CEA) 57 Dropped More than 19 Inches & CEA 61 Dropped More than 19 Inches on 831101.Caused by Sluggishness of CEA Grippers | |
IA-83-368, Loss of Salt Water Flow to Svc Water Hxs, Evaluation Rept | 25 April 1983 | Loss of Salt Water Flow to Svc Water Hxs, Evaluation Rept | Safe Shutdown |
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-93-139, Part 21 Rept Re Error in Input to Large Break LOCA Analysis. Paint Thickness Factor of Ten Larger than Intended Used for One of Walls in Containment.Caused by Wrong Value Transcribed & Used in LOCA Analysis | 24 September 1993 | Part 21 Rept Re Error in Input to Large Break LOCA Analysis. Paint Thickness Factor of Ten Larger than Intended Used for One of Walls in Containment.Caused by Wrong Value Transcribed & Used in LOCA Analysis | |
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-97-002, Part 21 Rept Re Piping Line Loss Between SG & MSIV Inlet When MSSVs Area Activated.Recommends That Utils Confirm Proper Adjustment of MSSV Blowdown Settings So as to Preclude Valve Chatter & Related Structural Concerns | 17 January 1997 | Part 21 Rept Re Piping Line Loss Between SG & MSIV Inlet When MSSVs Area Activated.Recommends That Utils Confirm Proper Adjustment of MSSV Blowdown Settings So as to Preclude Valve Chatter & Related Structural Concerns | |
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 | |
ML13302A221 | 16 November 1979 | Annual Financial Rept for Yr Ending 790630 | Earthquake |
ML13302A222 | 20 November 1979 | Annual Financial Rept for Yr Ending 790630 | |
ML13302A523 | 30 April 1981 | Amend 6 to Fire Hazards Analysis. | |
ML13310A378 | 31 January 1982 | Fire Hazards Analysis, Revision 10 | |
ML13312A566 | 30 June 1980 | Response to NRC Question 222.34, Nonproprietary Version, June 1980 | |
ML13322A432 | 15 February 1980 | Responds to NRC Questions 361.37 Through 361.62. | Safe Shutdown Earthquake Design basis earthquake Earthquake |
ML13323A156 | 20 May 1981 | Rept on Recent Oil Exploration Drilling - Capistrano Embayment Area,Orange County,Ca. | |
ML13324A248 | 31 July 1979 | Late Cenozoic Stratigraphy Capistrano Embayment Coastal Area,Orange County,Ca. | |
ML13324A250 | 16 October 1979 | Plan for Piping Verification Program/Thermal Expansion, Steady State Vibration & Dynamic Effects | Boric Acid Flow Induced Vibration |
ML13324A251 | 31 July 1979 | Analysis of Explosive Vapor Cloud & Missile Hazards for Rail & Highway Transportation Routes. | Earthquake |
ML13324A255 | 30 November 1979 | Tectonics of Juncture Between San Andreas Fault Sys & Salton Trough,Southeastern Ca. | Hydrostatic Earthquake |
ML13324A258 | 30 November 1979 | Geological Excursions in Southern CA Area. | |
ML18029A931 | 29 March 1985 | Speech Entitled, Flora:Program for Direct Generation of Floor Response Spectra. | Finite Element Analysis Earthquake Backfit |
ML18029A933 | 29 March 1985 | Speech Entitled, Correlation Coefficients for Combination of Piping Responses. | Earthquake |
ML18029A934 | 28 February 1985 | Speech Entitled, Complete Quadratic Combination Technique for Model Responses. | Earthquake |
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 | |
ML18040A005 | 31 July 1997 | Monthly Operating Repts for Jul 1997 for San Onofre Nuclear Generating Station.W/970813 Ltr | |
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 | |
ML19253A913 | 31 December 1978 | Annual Operating Rept,Vol Iv,Biological,Sedimentological & Oceanographic Data Analyses 1978. Contains Ets,Const Monitoring Program & Preoperational Monitoring Program | |
ML19290D444 | 30 November 1979 | Earthquakes & Other Perils,San Diego Region. | Earthquake |
ML19295A618 | 19 September 1980 | Part 21 Rept Re Potential Defect in Component of Dsrv Standby Diesel Generator Concerning Link Rod Assembly Which Could Result in Engine Failure.Defect Limited to Models Dsrv 12,DSRV 16 & Dsrv 20 Built Before Feb 1980 | |
ML19318A329 | 16 November 1979 | Annual Financial Rept for Yr Ending 800630 for Public Utils Dept | |
ML19320A577 | 27 June 1980 | Preliminary Rept on Geologic Drilling & Investigation San Onofre Nuclear Generating Station Units 2 & 3. |