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	Issue date	Title	Topic
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.

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