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    "query_string": "[[Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO]] [[Site::Diablo Canyon||Rancho Seco||05000000]]",
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	Issue date	Title	Topic
ML20126D190	12 August 1977	PNO-77-143:Pacific Pump Co Supplied Facilities W/Production Lot of 40 Pumps Mfg Using Shafts Made of Inferior Matl. Cause Unstated.All Utils W/Pumps Were Notified.Nrc Headquarters Notified on 770812
ML20134A975	11 August 1975	PN-III-75-027:during Predocket Insp,Several QA Deviations Identified Leading to Conclusion & Recommendation to Reject Tendered Application
ML20135G579	13 September 1985	PNS-V-85-004:on 850913,two Telephone Threats Received from Unidentified Caller.Searches Found No Bomb.Air Force Bomb Sniffing Dogs & Handlers Enroute to Site.Plant & Surrounding Facilities Evacuated
ML20136B030	14 November 1985	PNS-V-85-005:on 851113,two Contractors from Nuclear Power Svc Allowed Access to Proctected Area W/O Being Searched or Badged.Contractors Discovered by Nuclear Power Svc Supervisor & Escorted to Access Control Area
ML20136J106	5 January 1986	PNO-IIT-86-001A:on 851226,loss of Integrated Control Sys Occurred.Caused by Simultaneous Deenergizing of All Redundant Dc Power Supplies.Licensee Preparing Action Plans for Systematic Troubleshooting.Sequence of Events Encl
ML20137G897	9 January 1986	PNO-IIT-86-001B:on 851228,Incident Investigation Team Began Investigation Into 851226 Loss of Power to Integrated Control Sys Reactor Trip on High Pressure & Rapid Cooldown Following Reactor Trip
ML20138E194	6 December 1985	PNS-V-85-006:on 851206,util Notified NRC of Arrest of Five Individuals,Including Three Plant Security Employees,For Use & Sale of Narcotics During 3-wk Period Ending 851205.No Evidence of Use of Narcotics at Plant Site Identified
ML20140F593	4 February 1977	PNO-77-022:on 770204,reactor Scrammed When Torus Temp Increased to 110 F.Caused by Two Target Rock Safety/Relief Valves Opening W/O Reseating Until Pressure Decreased to 100 Psig.Reactor Placed in Cold Shutdown
ML20140G325	27 November 1974	PNO-74-136:on 741124,during Startup Tests of Main Steam Relief Valves at 75% Power,Target Rock Safety Relief Valve Failed to Reseat.Cause Not Stated.Valve Will Be Replaced
ML20140G343	21 July 1975	PNO-75-053:on 750720,during Attempt to Reseat Leaking Relief Valve D,Valve Manually Actuated & Did Not Reseat.Reactor Manually Scrammed.Investigation Continuing
ML20147H084	1 March 1988	PNS-V-88-001:on 880229,plant Notified of Bomb Threat. Licensee Conducted Routine Search,Found Three Suspicious Packages.Packages Examined & Found to Be Innocuous
ML20151X524	27 June 1977	PNO-77-114:on 770624,unplanned Release of Airborne Radioactivity Was Reported When Craft Personnel of Contractor (Scott Co) Attempted to Repair Inward Buckling. Staff Successfully Reclosed Valve within Approx 10 Minutes
ML20196B688	30 November 1988	PNS-V-88-006:on 881126,licensee Received Telcon Alleging That Nonlicensed Equipment Operator Observed Using Illegal Drugs.Individual Submitted to Urinalysis Test & Showed Positive for Marijuana.Individual Terminated on 881130	Fitness for Duty
ML20209D513	23 April 1987	Updated PNO-V-87-030B:on 870421,onsite Phase of AIT Team Special Insp Into 870410 Loss of Suction to RHR Sys While in half-loop Concluded W/Meeting at Site
ML20209J412	27 April 1987	PNS-V-87-003:on 870427,two safety-related Wires Inside 480- Volt West Switchgear Room Controlling Sys for Train a Suction Valve from Borated Water Tank to Low Pressure Safety Injection/Containment Spray Sys Discovered Cut
ML20210B825	3 February 1986	PNS-V-86-001:on 860202,NRC Senior Resident Inspector Denied Access to Site When Unloaded 38 Caliber Revolver & Ammunition Found in Briefcase.Caused by Confusion When Inspector Relocated from Out of State.Briefcase Confiscated	Contraband
ML20210V349	13 February 1987	PNS-V-87-001:on 870212,security Officer Found 18x24-inch Drawing on Ground Next to Centrally Located Roadway Inside Protected Area,Adjacent to Gantry Crane.Security Alert Declared.State of CA Notified.Investigation Continuing
ML20211F329	17 February 1987	PNS-V-87-002:on 870213,call Received Threatening Direct Attack on Site Internal Areas,Security Sys & Personnel. Licensee Declared Security Alert Followed by Declaration of Unusual Event.Fbi Notified.Investigation Continuing
ML20211G380	17 February 1987	PNS-V-87-001A:on 870214,preliminary Investigation by Util Determined That Homemade Security Drawing Found Unattended on Site on 870212 Had Been Made by One of Licensee Engineers.Investigation by Licensee Continuing
ML20212N558	25 August 1986	PNS-I-86-013:on 860824,Boston Globe Newspaper Received Bomb Threat Re Plants.Police Notified & Bomb Search Procedures Instituted W/Negative Results
ML20215F900	17 June 1987	PNS-V-87-005:on 870617,American Protective Svc Notified Util That Security Personnel on Strike Over Monetary Benefits. Licensee Capable to Meet Security Staffing Requirements Through Use of Proprietary Security Personnel
ML20215G963	17 June 1987	PNS-V-87-004:on 870616,Sacramento Narcotics Task Force Arrested Six Persons Involved in Possession,Sale & Use of Cocaine as Result of tri-county Wide Drug Investigation.Two Individuals Employed by Util.Investigation Continuing
ML20235X161	23 September 1987	PNS-V-87-007:on 870923,security Received Info That Three Local Television Stations Telephoned by Male Indicating Intention to Blow Up Plant.Surveillance Activities increased.Common-user Areas Searched But Nothing Identified
ML20236A345	21 July 1987	PNS-V-87-006:on 870721,Sacramento,CA Television Channel 3 Scheduled to Broadcast First of three-part Series on Drug Use at Facility.Nrc Interviewed Informant on 870719.Info Comprehensive & Factual.Law Enforcement Authority Informed
ML20236F172	16 June 1976	PNS-76-027:on 760615,Region V Public Affairs Office Received Telephone Call from Reporter at San Jose Mercury-News Re Apparent Threat Against Facility.Reporter Received Photocopy of Flyer from Group Friends of Future in Mail
ML20236F461	6 May 1976	PNS-76-017:on 760506,licensee Reported That Disc Jockey at Radio Station in California Reported That He Had Received Phone Call from Man Who Stated That Two Individuals Had Welded Bomb Into Pipe at Diablo Canyon Reactor.Fbi Informed
ML20236L034	5 November 1987	PNS-V-87-004B:on 870616,Sacramento Narcotics Task Force Arrested Six Persons Involved in Possession,Sale & Use of Cocaine.Util Clerk Indicated Transactions Conducted in Site Parking Lot or Offsite,Not at Facility
ML20236U106	7 March 1975	PN-75-001:on 750307,ofc Was Notified of Fire on 750306 at Plant.Fire Resulted from Ignition of Box of CAD-WELD Ignitors Located on Scaffold Near Containment Liner. Inspector Will Be at Site IAW Existing Scheduled Insp
ML20236U373	16 July 1975	PN-75-051:on 750714,Sacramento Municipal Utility District Notified Region V by Telephone That 47 of 69 CRD Stator Coils Damaged Due to Overheating.Crd Stator Cooling Sys Shutdown
ML20236U391	8 July 1975	PN-75-047:on 750701 Sacramento Municipal Utility District Notified Region V by Telephone That Exam of Turbine Disclosed That Several Blades Had Broken Off of Fifth Stage on Low Pressure Side of Turbine.Facility Shutdown on 750701
ML20236U778	4 August 1975	PN-75-064:an Earthquake Registering 5.7 on Richter Scale at Univ of California,Berkeley & 6.4 at California Institute of Technology,Pasadena,Occurred in Vicinity of Oroville,Ca on 750801	Earthquake
ML20244A614	23 April 1979	PNO-79-89:on 790422,coolant Sys Pressure on 790422 Resulted in Automatic Reactor Shutdown.Caused by Failure of a Inverter Power Supply.Unit Returned to Operation on 790423
ML20244A981	13 March 1980	PNO-V-80-19:on 800312,visual Insp Revealed Degradation of Cladding on One Fuel Rod in Discharged Assembly.Damage Consisted of two-three Inch Split Between Fifth & Sixth Spacer Grids & Pin Hole Between Fourth & Fifth Spacer Grids
ML20245C014	25 June 1987	PNS-V-87-004A:on 870617,Sacramento Narcotics Task Force Arrested Six Persons Involved in Possession,Sale & Use of Cocaine,Including Util Clerk & Util Helper Employed at Plant.Licensee Interviewed 36 Employees Re Drug Sales & Use
ML20247N007	11 September 1989	PNS-I-89-015:revised Notification of Telephone Threat, Correcting Event Date from 890909 to 890911.Call, Originating from Limerick or Peach Bottom,Received at Corporate Ofc.On 890525,threat Received at Peach Bottom
ML20248F187	13 June 1978	PNO-78-122:on 780612,Rancho Seco Facility Was Shut Down When Reactor Coolant Sys Unidentified Leakage Rate Reached TS Limit of 1 Gpm.Power Operations Scheduled for Resumption During Wk of 780619,following Completion of Repairs
ML20248F201	29 June 1978	PNO-78-127:on 780629,util Informs That Three of Five Containers Broke Open & Spilled Ammonium Hydroxide & Vapors Causing Personnel Discomfort Due to Inhalation.No Structural Damage Occurred to Turbine Building
ML20248J052	17 April 1978	PNO-78-083:on 780412,NRC Inspector Performing Routine Construction Insp at Diablo Canyon Plant Questioned Licensee Intended Use of Threaded Couplers for Splicing Rebar Segments to Form Dowels Associated W/Structural Mods
ML20249A011	20 November 1978	PNS-78-055:on 781116,French Hospital in San Luis Obsipo,Ca, Received Two Anonymous Telephone Bomb Threats Re Diablo Canyon.Licensee Conduted Searches for Bomb,W/Negative Results
ML20249A665	31 July 1978	PNS-78-037:antinuclear Demonstrations Scheduled to Take Place at Several Licensed Nuclear Facilities on 780806. Licensees Have Taken Security Precautions Which Include Coordination W/Local Law Enforcements Agencies
ML20249A895	31 March 1977	PNS-77-013:on 770330,unknown Male Called Diablo Canyon Switchboard & Stated That Explosive Device Planted in Unit 1 & Would Explode Before Midnight.Search Made W/Negative Results & Normal Activities Resumed
ML20249B193	24 February 1976	PNO-76-031:on 760222,eight People Were Arrested for Trespassing on Licensee Private Road,While Demonstration Was Taking Place.Util Filed Complaints & Eight Arrested Being Held on Bail
ML20249B313	11 May 1976	PNO-76-086:on 760403,reactor Was Shutdown to Remove Reactor Vessel Surveillance Specimens.Insp of Stator Disclosed That 11 Coils Faulted (Shorted or Grounded).Rewinding of Only 11 Coils Would Extend Current Outage Until July 1976
PNO-I-85-071, on 850927,Hurricane Gloria Located 50 Miles East of Cape May,Nj.Reactor Facilities Located Along Coast Implementing Procedures Per Emergency Plans.Listed Plants Shutting Down.Oyster Creek Reduced Power Levels to 35%	27 September 1985	PNO-I-85-071:on 850927,Hurricane Gloria Located 50 Miles East of Cape May,Nj.Reactor Facilities Located Along Coast Implementing Procedures Per Emergency Plans.Listed Plants Shutting Down.Oyster Creek Reduced Power Levels to 35%
PNO-I-85-071A, on 850927,Hurricane Gloria Located at Northampton,Ma Moving in Northeasterly Direction.Status Downgrade to Tropical Storm Expected Early Evening on 850927.Salem Unit 1 & Millstone Complex Suffered Damage	27 September 1985	PNO-I-85-071A:on 850927,Hurricane Gloria Located at Northampton,Ma Moving in Northeasterly Direction.Status Downgrade to Tropical Storm Expected Early Evening on 850927.Salem Unit 1 & Millstone Complex Suffered Damage	High winds
PNO-I-87-093, on 871009,util Announced Listed Changes to Corporate Nuclear Mgt to Provide for Corporate Officer at Each Plant & to Elevate Plant Level.Changes Will Be Effective on 871101.Nuclear Review Board Reconstituted	9 October 1987	PNO-I-87-093:on 871009,util Announced Listed Changes to Corporate Nuclear Mgt to Provide for Corporate Officer at Each Plant & to Elevate Plant Level.Changes Will Be Effective on 871101.Nuclear Review Board Reconstituted
PNO-I-88-001, on 880104,realignment of Nuclear Mgt Updated. Action Provides for Corporate Officer at Each Plant to Elevate Level of Plant in Corporate Mgt Structure	4 January 1988	PNO-I-88-001:on 880104,realignment of Nuclear Mgt Updated. Action Provides for Corporate Officer at Each Plant to Elevate Level of Plant in Corporate Mgt Structure
PNO-I-88-017, on 880202,util to Announce Change to Corporate Mgt,Per Highly Critical INPO Ltr.Jh Austin Will Retire as of 880301 & Jl Everett Will Assume Duties of President Until Replacement Named	2 February 1988	PNO-I-88-017:on 880202,util to Announce Change to Corporate Mgt,Per Highly Critical INPO Ltr.Jh Austin Will Retire as of 880301 & Jl Everett Will Assume Duties of President Until Replacement Named
PNO-I-88-020, on 880216,CA Mcneill Named Executive Director - Nuclear W/Responsibility of Directing Nuclear Operations, Including Nuclear Dept Reorganization & Restart Efforts of Peach Bottom	16 February 1988	PNO-I-88-020:on 880216,CA Mcneill Named Executive Director - Nuclear W/Responsibility of Directing Nuclear Operations, Including Nuclear Dept Reorganization & Restart Efforts of Peach Bottom
PNO-I-88-116, on 881108,voters Voted Down state-wide Referendum to Shutdown Plants in State of Ma If Nuclear Waste Produced in Process	9 November 1988	PNO-I-88-116:on 881108,voters Voted Down state-wide Referendum to Shutdown Plants in State of Ma If Nuclear Waste Produced in Process

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