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| Issue date | Title | Topic | |
|---|---|---|---|
| ML20211A998 | 12 July 1999 | Draft,Probabilistic Safety Assessment, Risk Info Matrix, Risk Ranking of Systems by Importance Measure | |
| DCL-99-045, 1998 Annual Financial Rept for PG&E Corp. with | 31 December 1998 | 1998 Annual Financial Rept for PG&E Corp. with | |
| ML20217G515 | 31 December 1997 | 1997 PG&E Corp Annual Rept | Stolen |
| ML20205F588 | 24 July 1997 | Decommissioning Cost Estimate for Diablo Canyon Power Plant,Units 1 & 2 | Coatings Fuel cladding Fire Watch Scaffolding |
| ML17264A938 | 10 July 1997 | Deficiency Rept Re Potential Safety Hazard Associated w/FM-Alco 251 Engin,High Pressure Fuel tube-catalog: 4401031-2 in Which Dual Failure Mode Exists.Caused by Incorrect Forming Process | |
| ML18102B691 | 31 January 1997 | Monthly Operating Repts for Jan 1997 for Diablo Canyon Power Plant,Units 1 & 2.W/970218 Ltr | |
| ML16342D535 | 31 January 1997 | WCAP-14826, Instrumentation Calibr & Drift Evaluation Process for Diablo Canyon Units 1 & 2,24 Month Fuel Cycle Evaluation. | |
| ML16343A474 | 31 January 1997 | WCAP-11595,Rev 2, W Improved Thermal Design Procedure Instrument Uncertainty Methodology Diablo Canyon Units 1 & 2 24 Month Fuel Cycle Evaluation. | |
| ML17083C623 | 31 January 1997 | Rev 4 to WCAP-13705, W Setpoint Methodology for Protection Sys Diablo Canyon Units 1 & 2,24 Month Fuel Cycle Evaluation. | |
| ML16342D554 | 31 December 1996 | Non-proprietary Nrc/Util Meeting on Model 51 SG Tube Integrity & ARC Methodology. | |
| DCL-97-045, Pacific Gas & Electric Co 1996 Annual Rept | 31 December 1996 | Pacific Gas & Electric Co 1996 Annual Rept | |
| ML20129J431 | 18 October 1996 | Safety Evaluation Approving Corporate Restructuring & Establishment of Holding Company Under Temporary Name PG&E Parent Co.,Inc of Which PG&E Would Become Wholly Owned Subsidiary | |
| DCL-96-155, Revised Special Rept SR 95-05:on 950806,EDG 1-2 to Achieve Rated Output Frequency within TS Limits.Caused by Degraded Electronic Governor Performance.Replaced Electronic Governor Motor Operated Potentiometer & Electronic Governor | 22 July 1996 | Revised Special Rept SR 95-05:on 950806,EDG 1-2 to Achieve Rated Output Frequency within TS Limits.Caused by Degraded Electronic Governor Performance.Replaced Electronic Governor Motor Operated Potentiometer & Electronic Governor | |
| ML20116B849 | 22 July 1996 | Revised Special Rept SR 95-03:on 950621,EDG 1-2 Failed to Load During Surveillance Testing.Caused by Loose Fuse Holder Contact Clip.Retensioned Loose Fuse Holder Contact Clip & Tightened Loose Wire Connection | |
| ML20116B852 | 22 July 1996 | Revised Special Rept SR 95-04:on 950718,EDG 1-2 Load Swings Occurred.Caused by Defective Electronic Governor Stability Potentiometer.Replaced Electronic Governor | |
| ML20236Q261 | 15 April 1996 | Rev 0 to DCP M-050284, Design Change Package for Installation of CCW Surge Tank Pressurization Sys for Unit 1 | Safe Shutdown Boric Acid Ultimate heat sink Fire Barrier Tornado Missile Post Accident Monitoring Probabilistic Risk Assessment Met Tower Tornado Generated Missile Earthquake Fire Protection Program Scaffolding |
| ML20094M625 | 21 November 1995 | Final Part 21 Rept of Investigation & Analysis of Suspect Fasteners Event 29257.B&G-Cardinal Discontinued Using Heat Treatment Equipment at Cardinal Facility Until Such Time That Satisfactory Mods Made to Hardware & Procedures | |
| ML18064A863 | 14 August 1995 | LER 95-004-00:on 950714,determined That Redundant DG Circuits Not Separated Per App R Due to Insufficient App R Program Documentation.Hourly Fire Tour Established in EDG 1-1 Room & Review of LERs for App R Completed | Safe Shutdown Fire Barrier Past operability Hourly Fire Watch |
| ML18100B298 | 24 May 1994 | LER 94-014-00:on 940426,SG 1-2 Automatically Started When Two Indicating Light Sockets Shorted Together Due to Personnel Error.Description of Event & Lessons Learned Will Be Published in Operations Incident Summary.W/940524 Ltr | |
| ML16342C309 | 31 December 1993 | Monthly Operating Repts for Dec 1993 for Dcnpp Units 1 & 2 | |
| ML16342A369 | 31 August 1993 | Revised MOR for Aug 1993 for Dcnpp Unit 1 | |
| ML16342A368 | 31 July 1993 | Revised MOR for July 1993 for Dcnpp Unit 1 | |
| ML20046A661 | 21 July 1993 | Cycle 6 Startup Rept. | |
| ML20059G681 | 30 June 1993 | Revised MOR for June 1993 for Dcnpp Unit 1 | |
| ML16342A367 | 31 May 1993 | Revised MOR for May 1993 for Dcnpp Unit 1 | |
| ML20045D173 | 31 May 1993 | Monthly Operating Repts for May 1993 for Diablo Canyon,Units 1 & 2 | |
| 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 |
| ML20141M047 | 31 December 1991 | Pge Annual Rept - 1991 | |
| ML20086T100 | 31 December 1991 | Adequacy of Seismic Margins Assuming Increase in Amplitude of Diablo Canyon Seismic Long-Term Program Horizontal & Vertical Ground Motions Described in Sser 34 | Probabilistic Risk Assessment Earthquake |
| ML16341G487 | 30 November 1991 | Nonproprietary Technical Justification for Eliminating Large Primary Loop Pipe Rupture as Structural Design Basis for Diablo Canyon Units 1 & 2 Nuclear Power Plants. | Safe Shutdown Earthquake Hydrostatic Pressure Boundary Leakage Pressure boundary leak |
| ML20085D295 | 21 August 1991 | Field Exercise Scenario,Aug 1991 | |
| ML20070S731 | 31 December 1990 | Analysis of Capsule X from Diablo Canyon Unit 2 Reactor Vessel Radiation Surveillance Program | |
| ML20065R873 | 30 November 1990 | Monthly Operating Repts for Diablo Canyon Units 1 & 2 for Nov 1990 | |
| ML20058P518 | 11 May 1990 | Accident Sequence Precursor Program Event Analysis 323/87-005 R2, Loss of RHR Cooling Results in Reactor Vessel Bulk Boiling | Reactor Vessel Water Level |
| ML20058P513 | 5 April 1990 | Accident Sequence Precursor Program Event Analysis 424/PNO-IIT-90-02A, Loop,Diesel Generator Failure & 36 Min Interruption of SDC During Mid-Loop Operation | |
| ML18094B321 | 28 February 1990 | Annual Operating Repts for 1989 for Salem & Hope Creek Generating Stations | |
| 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 | |
| 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 | |
| ML20058P522 | 3 February 1990 | Accident Sequence Precursor Program Event Analysis Loss of Reactor Protection Sys Bus B Causes Loss of Shutdown Cooling | |
| 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 | |
| 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 | |
| ML20006A823 | 10 January 1990 | Errata to Rev 3 to BAW-1543, Master Integrated Reactor Vessel Surveillance Program Consisting of Revised Tables 3-20 & E-1 | |
| 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 | |
| ML17347B462 | 31 December 1989 | App a to USI A-46 & Generic Ltr 87-02. | Safe Shutdown Safe Shutdown Earthquake Probabilistic Risk Assessment Operating Basis Earthquake Earthquake Backfit |
| ML20006C668 | 30 November 1989 | Nonproprietary WCAP-12416, Evaluation of Thermal Stratification for Diablo Canyon Units 1 & 2 Pressurizer Surge Line. | |
| ML20006E544 | 30 November 1989 | Review of Flow Peaking & Tube Fatique in Diablo Canyon Units 1 & 2 Steam Generators. | Flow Induced Vibration |
| ML18094B147 | 25 October 1989 | Emergency Plan Annual Exercise 1989 for Artificial Island on 891025. W/One Oversize Drawing | |
| 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 |