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PNO-IV-99-005, on 990113,Grand Gulf Operators Commenced Unit Shutdown,From 100 Percent Power,Due to One or More Apparently Degraded Current Transformers Located in Safety Related Div I,4.16 Kv Switchgear.State of Ms Informed13 January 1999PNO-IV-99-005:on 990113,Grand Gulf Operators Commenced Unit Shutdown,From 100 Percent Power,Due to One or More Apparently Degraded Current Transformers Located in Safety Related Div I,4.16 Kv Switchgear.State of Ms Informed
PNO-II-98-013, on 980308,util Declared NOUE Due to High River Level & Subsequent Flooding.Licensee Established Constant Communications W/Early,Ga & Houston County,Al.Resident Inspectors Are Monitoring Licensee Activities9 March 1998PNO-II-98-013:on 980308,util Declared NOUE Due to High River Level & Subsequent Flooding.Licensee Established Constant Communications W/Early,Ga & Houston County,Al.Resident Inspectors Are Monitoring Licensee Activities
PNO-II-98-005, on 980201,plant Commenced Reactor Startup & Entered Mode 2 Conditions (Keff 0.99).On 980202,criticality Was Achieved,Followed by Mode 1 Conditions.Unit Scheduled to Be at 100% Power Late 9802052 February 1998PNO-II-98-005:on 980201,plant Commenced Reactor Startup & Entered Mode 2 Conditions (Keff 0.99).On 980202,criticality Was Achieved,Followed by Mode 1 Conditions.Unit Scheduled to Be at 100% Power Late 980205Overspeed trip
PNO-II-98-004, on 980130,Region II Administrator Informed FPC That NRC Was Satisfied W/Completion of FPC Actions Specified in Cal, & Concurred That Plant,Unit 3 Could Operate IAW License30 January 1998PNO-II-98-004:on 980130,Region II Administrator Informed FPC That NRC Was Satisfied W/Completion of FPC Actions Specified in Cal, & Concurred That Plant,Unit 3 Could Operate IAW License
PNO-II-98-003, on 980120,licensee Placed Two Reactor Coolant Pumps in Operation to Add Heat to Rcs.Licensee Has Not Yet Requested Release from Cal.Licensee Issued Press Release22 January 1998PNO-II-98-003:on 980120,licensee Placed Two Reactor Coolant Pumps in Operation to Add Heat to Rcs.Licensee Has Not Yet Requested Release from Cal.Licensee Issued Press Release
PNO-II-97-063, on 971218,Crystal River Unit 3 Achieved Significant Milestone by Declaring a EDG Operable & Thus Making Both EDGs Operable for Mode 5.Licensee Does Not Plan to Issue Press Release.State of Fl Notified19 December 1997PNO-II-97-063:on 971218,Crystal River Unit 3 Achieved Significant Milestone by Declaring a EDG Operable & Thus Making Both EDGs Operable for Mode 5.Licensee Does Not Plan to Issue Press Release.State of Fl Notified
PNO-II-97-059, on 971118,established Vacuum in Main Condenser & Steam Bubble in Pressurizer.Completed Work on Planned Upgrades for B Edg.Resident & regional-based Inspectors Are Closely Monitoring Subject Activities18 November 1997PNO-II-97-059:on 971118,established Vacuum in Main Condenser & Steam Bubble in Pressurizer.Completed Work on Planned Upgrades for B Edg.Resident & regional-based Inspectors Are Closely Monitoring Subject Activities
PNO-II-97-039A, on 970720,Hurricane Danny Downgraded to Depression.Storm Disipated Without Reaching Farley Nuclear Plant.Farley Nuclear Plant Experienced Light Rain W/Both Units Remaining at Full Power21 July 1997PNO-II-97-039A:on 970720,Hurricane Danny Downgraded to Depression.Storm Disipated Without Reaching Farley Nuclear Plant.Farley Nuclear Plant Experienced Light Rain W/Both Units Remaining at Full Power
PNO-II-97-039, on 970718,response Was Made to Hurricane Danny.Region II State Liason Officer Has Been in Contact W/Fema & State of Al.Plant Staff Taking Precautionary Measures in Preparation for High Wind Conditions18 July 1997PNO-II-97-039:on 970718,response Was Made to Hurricane Danny.Region II State Liason Officer Has Been in Contact W/Fema & State of Al.Plant Staff Taking Precautionary Measures in Preparation for High Wind Conditions
PNO-II-97-007, on 970130,kV step-up Transformer Caught Fire & Exploded at Crystal River.Explosion Lifted Transformer Off of Base & Toppled on Side.Offsite Help Requested & Received by Derosa Volunteer Fire Dept31 January 1997PNO-II-97-007:on 970130,kV step-up Transformer Caught Fire & Exploded at Crystal River.Explosion Lifted Transformer Off of Base & Toppled on Side.Offsite Help Requested & Received by Derosa Volunteer Fire Dept
PNO-II-96-070A, on 961008,tropical Storm Josephine Had Lost Majority of Tropical Characteristics.Water Level Dropped & Licensee Began to Decrease Site Manning & NRC Secured Incident Response Ctr Manning in Atlanta on 9610088 October 1996PNO-II-96-070A:on 961008,tropical Storm Josephine Had Lost Majority of Tropical Characteristics.Water Level Dropped & Licensee Began to Decrease Site Manning & NRC Secured Incident Response Ctr Manning in Atlanta on 961008
PNO-II-96-070, on 961007, Unusual Event Was Declared Due to Hurricane Warning.Plant Will Remain in Unusual Event Status at Least Until Hurricane Warning Is Lifted.Onsite Insps Will Be Conducted7 October 1996PNO-II-96-070:on 961007, Unusual Event Was Declared Due to Hurricane Warning.Plant Will Remain in Unusual Event Status at Least Until Hurricane Warning Is Lifted.Onsite Insps Will Be Conducted
PNO-II-96-060A, on 961004,licensee Notified NRC That Extended Shutdown Was Being Initiated to Accomplish Design Mod to Increase Safety Margins.On 960902,plant Was Shutdown Due to Problem W/Turbine Oil Sys.Meeting Scheduled on 9610094 October 1996PNO-II-96-060A:on 961004,licensee Notified NRC That Extended Shutdown Was Being Initiated to Accomplish Design Mod to Increase Safety Margins.On 960902,plant Was Shutdown Due to Problem W/Turbine Oil Sys.Meeting Scheduled on 961009Unanalyzed Condition
Boric Acid
Fitness for Duty
Mission time
Offsite Dose Calculation Manual
Fire Barrier
Enforcement Discretion
Coatings
Temporary Modification
Systematic Assessment of Licensee Performance
Eddy Current Testing
Operability Determination
Exemption Request
Fire Protection Program
Fire Watch
Weak link
Inattentive
Power Uprate
PNO-II-93-075, on 931221,Unit 2 Shutdown Due to Turbine Virbrations.Unit 2 Planned to Be Shutdown for Approx Six Days to Implement Repairs on Secondary Side22 December 1993PNO-II-93-075:on 931221,Unit 2 Shutdown Due to Turbine Virbrations.Unit 2 Planned to Be Shutdown for Approx Six Days to Implement Repairs on Secondary SideBoric Acid
PNO-II-93-051, on 930928,ongoing Investigation of 10 Jet Pump Revealed Probable Loose or Displaced Mixer.General Electric Review of Data Verified Results & Recommended Jet Pump 10 Be Declared Inoperable28 September 1993PNO-II-93-051:on 930928,ongoing Investigation of 10 Jet Pump Revealed Probable Loose or Displaced Mixer.General Electric Review of Data Verified Results & Recommended Jet Pump 10 Be Declared Inoperable
PNO-II-93-046, on 930913,reactor Experienced Spurious Low Reactor Water Level Signal & High Pressure Core Spray Pump Started Causing High Water Level Scram.Licensee Planned Actions in Response to NRC Bulletin 93-03 Discussed14 September 1993PNO-II-93-046:on 930913,reactor Experienced Spurious Low Reactor Water Level Signal & High Pressure Core Spray Pump Started Causing High Water Level Scram.Licensee Planned Actions in Response to NRC Bulletin 93-03 Discussed
PNO-II-93-004, on 930130,facility Began Reactor Shutdown to Replace Leaking Pressurizer Code Safety Valve 2B. Leak Reached Max Rate of 20-28 Gpm Prior to Shutdown.Facility in Cold Shutdown on 930131.State of AL Informed1 February 1993PNO-II-93-004:on 930130,facility Began Reactor Shutdown to Replace Leaking Pressurizer Code Safety Valve 2B. Leak Reached Max Rate of 20-28 Gpm Prior to Shutdown.Facility in Cold Shutdown on 930131.State of AL Informed
PNO-II-92-019, on 920327,plant Automatically Tripped Due to Partial Loss of Offsite Power.Licensee Plans to Keep Unit Shutdown for 2-3 Days to Repair Faulty Rod Position Indication.State of Fl Was Not Notified27 March 1992PNO-II-92-019:on 920327,plant Automatically Tripped Due to Partial Loss of Offsite Power.Licensee Plans to Keep Unit Shutdown for 2-3 Days to Repair Faulty Rod Position Indication.State of Fl Was Not Notified
PNO-II-91-014, on 910329,as Result of Severe Weather & Heavy Rains,Bridge Located on Highway 61 Approx 7-8 Miles North of Grand Gulf Was Washed Out.State of Mississippi Have Been Notified29 March 1991PNO-II-91-014:on 910329,as Result of Severe Weather & Heavy Rains,Bridge Located on Highway 61 Approx 7-8 Miles North of Grand Gulf Was Washed Out.State of Mississippi Have Been Notified
PNO-II-90-062, on 901013,licensee Maint Employee Was Fatally Injured as Result of Fall of Approx 30 Ft in Reactor Bldg. Employee Transported to Hosp15 October 1990PNO-II-90-062:on 901013,licensee Maint Employee Was Fatally Injured as Result of Fall of Approx 30 Ft in Reactor Bldg. Employee Transported to Hosp
PNO-II-90-061, on 901009,unit Shutdown in Excess of 48 H as Result of Reactor Coolant Pump Motor Oil Leak.Caused by Missing Pieces of Sheet Metal.Licensee Plans to Conduct Repairs & Estimates 901016 Restart Date12 October 1990PNO-II-90-061:on 901009,unit Shutdown in Excess of 48 H as Result of Reactor Coolant Pump Motor Oil Leak.Caused by Missing Pieces of Sheet Metal.Licensee Plans to Conduct Repairs & Estimates 901016 Restart Date
PNO-II-89-078, on 891205,male Individual Called Dept of Corrections,State of Alabama & Requested to Talk to Dept Commissioner.Commissioner Not in & Individual Left Name, Phone Number & Message Threatening to Blow Up Farley NPP5 December 1989PNO-II-89-078:on 891205,male Individual Called Dept of Corrections,State of Alabama & Requested to Talk to Dept Commissioner.Commissioner Not in & Individual Left Name, Phone Number & Message Threatening to Blow Up Farley NPP
PNO-II-89-068, on 890920,facility Manually Tripped from Approx 60% Power Due to Loss of Main Feedwater.Caused by Bumping of Valve on Main Feedwater Pump Turbine A.Resident Inspector Monitoring Licensee Actions22 September 1989PNO-II-89-068:on 890920,facility Manually Tripped from Approx 60% Power Due to Loss of Main Feedwater.Caused by Bumping of Valve on Main Feedwater Pump Turbine A.Resident Inspector Monitoring Licensee Actions
PNO-II-89-066A, updates Status of Hurricane Hugo for Nuclear Facilities in Southeast.Manning of Incident Response Ctr by Region II Continuing21 September 1989PNO-II-89-066A:updates Status of Hurricane Hugo for Nuclear Facilities in Southeast.Manning of Incident Response Ctr by Region II Continuing
PNO-II-89-066, licensees Prepared for Adverse Weather Conditions Due to Hurricane.Briefings Held W/Key Managers on Responsibilities to Check All Trailers,Secure Crane Hooks & Increase Emergency Food Supplies21 September 1989PNO-II-89-066:licensees Prepared for Adverse Weather Conditions Due to Hurricane.Briefings Held W/Key Managers on Responsibilities to Check All Trailers,Secure Crane Hooks & Increase Emergency Food Supplies
ML20247N00711 September 1989PNS-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
PNO-II-89-061, on 890824,loss of Decay Heat Pump (RWP-2B) & Subsequent Reactor Trip Occurred.Caused by Unsatisfactory Discharge Pressure Condition While Performing Surveillance on Emergency Cooling Water Pump (RWP-2B)28 August 1989PNO-II-89-061:on 890824,loss of Decay Heat Pump (RWP-2B) & Subsequent Reactor Trip Occurred.Caused by Unsatisfactory Discharge Pressure Condition While Performing Surveillance on Emergency Cooling Water Pump (RWP-2B)
PNO-II-89-058, on 890814,reactor Tripped from 93% on Turbine Trip.Caused by Loss of Condenser Vacuum as Result of Ruptured Seal Between Condenser & Turbine.Investigations Underway.Licensee Estimate of 5-day Outage Noted15 August 1989PNO-II-89-058:on 890814,reactor Tripped from 93% on Turbine Trip.Caused by Loss of Condenser Vacuum as Result of Ruptured Seal Between Condenser & Turbine.Investigations Underway.Licensee Estimate of 5-day Outage NotedScram Discharge Volume
PNO-V-89-047, on 890808,earthquake & Aftershock of 5.1 & 4.2 Magnitudes,Respectively,Occurred Approx 15 Miles Southwest of San Jose,Ca.Reactors Shutdown During Earthquake.Tour of GE Reactor Disclosed No Damage8 August 1989PNO-V-89-047:on 890808,earthquake & Aftershock of 5.1 & 4.2 Magnitudes,Respectively,Occurred Approx 15 Miles Southwest of San Jose,Ca.Reactors Shutdown During Earthquake.Tour of GE Reactor Disclosed No DamageEarthquake
PNO-IV-89-045, on 890703,earthquake Near Tremonton,Ut Occurred.Earthquake Safety Interlocks Did Not Trip & No Damage Occurred5 July 1989PNO-IV-89-045:on 890703,earthquake Near Tremonton,Ut Occurred.Earthquake Safety Interlocks Did Not Trip & No Damage OccurredEarthquake
PNO-II-89-047, on 890616,loss of Offsite Power W/Resulting Scram from 10% Power.Caused by Breaker 1691 Tripping Which Supplied Power from Unit 3 Startup Transformer to Vital Buses.Senior Resident Inspector Responded & Onsite16 June 1989PNO-II-89-047:on 890616,loss of Offsite Power W/Resulting Scram from 10% Power.Caused by Breaker 1691 Tripping Which Supplied Power from Unit 3 Startup Transformer to Vital Buses.Senior Resident Inspector Responded & Onsite
PNO-II-89-047A, on 890616,loss of Offsite Power W/Resulting Scram from 10% Power (Note Revised Time from Earlier Pn). Caused by Combination of Personnel Error & Equipment Failure. 1B RCP Started,Restablishing Forced Coolant Flow16 June 1989PNO-II-89-047A:on 890616,loss of Offsite Power W/Resulting Scram from 10% Power (Note Revised Time from Earlier Pn). Caused by Combination of Personnel Error & Equipment Failure. 1B RCP Started,Restablishing Forced Coolant Flow
PNO-II-89-045, between 890518-0609,13 Util Employees Inadvertently Received Whole Body Exposures of 300 Mrem Each While Cleaning Precipitator Containing 300 Mci Cs-137 Source.Caused by Failure of Shielding Mechanism12 June 1989PNO-II-89-045:between 890518-0609,13 Util Employees Inadvertently Received Whole Body Exposures of 300 Mrem Each While Cleaning Precipitator Containing 300 Mci Cs-137 Source.Caused by Failure of Shielding Mechanism
PNO-II-89-042, on 890602,util Notified That Decision Made to Cancel Unit 2.Util Will Not Request Cancellation of CP Until Approval Received from PSC of Arkansas,Mississippi,Louisiana & City of New Orleans2 June 1989PNO-II-89-042:on 890602,util Notified That Decision Made to Cancel Unit 2.Util Will Not Request Cancellation of CP Until Approval Received from PSC of Arkansas,Mississippi,Louisiana & City of New Orleans
PNO-II-89-035, on 890511,B Recirc Pump Experienced High Vibrations.Control Rods Were Inserted to Reduce Power & Recirc Pumps Were Shifted to Slow Speed16 May 1989PNO-II-89-035:on 890511,B Recirc Pump Experienced High Vibrations.Control Rods Were Inserted to Reduce Power & Recirc Pumps Were Shifted to Slow Speed
PNO-II-89-030, on 890405,diver from Nuclear Util Const Co Caused Alarm of Portal Monitor When Entering Site.Caused by Clothing Being Contaminated from Working at Plant in Spain. Individual Showed No Internal Activity7 April 1989PNO-II-89-030:on 890405,diver from Nuclear Util Const Co Caused Alarm of Portal Monitor When Entering Site.Caused by Clothing Being Contaminated from Working at Plant in Spain. Individual Showed No Internal Activity
PNO-V-89-022, on 880403,earthquake of Magnitude of 4.5 on Richter Scale Occurred 10 Miles Northeast of San Jose,Ca. Automatic Seismic Protection Did Not Trigger Shutdown. Reactors Manually Shutdown.No Radioactive Release Occurred3 April 1989PNO-V-89-022:on 880403,earthquake of Magnitude of 4.5 on Richter Scale Occurred 10 Miles Northeast of San Jose,Ca. Automatic Seismic Protection Did Not Trigger Shutdown. Reactors Manually Shutdown.No Radioactive Release OccurredEarthquake
PNO-IV-89-020, Region IV Notified of Recent Reactor Trip at Palo Verde Unit 3 That Was Complicated by Inability to Open Steam Generator Atmospheric Dump Valves Mfg by Control Components,Inc.No Sticking Problems Noted at Other Plants23 March 1989PNO-IV-89-020:Region IV Notified of Recent Reactor Trip at Palo Verde Unit 3 That Was Complicated by Inability to Open Steam Generator Atmospheric Dump Valves Mfg by Control Components,Inc.No Sticking Problems Noted at Other Plants
PNO-II-88-069, on 881129,spurious Actuation of 19 Out of 30 Alert & Notification Sirens Occurred.Preliminary Info Indicated That Spurious False Activation Caused by Old Activation Sys Decommissioned Later on Same Day30 November 1988PNO-II-88-069:on 881129,spurious Actuation of 19 Out of 30 Alert & Notification Sirens Occurred.Preliminary Info Indicated That Spurious False Activation Caused by Old Activation Sys Decommissioned Later on Same Day
PNO-I-88-116, on 881108,voters Voted Down state-wide Referendum to Shutdown Plants in State of Ma If Nuclear Waste Produced in Process9 November 1988PNO-I-88-116:on 881108,voters Voted Down state-wide Referendum to Shutdown Plants in State of Ma If Nuclear Waste Produced in Process
PNO-V-88-044, on 880627,earthquake Occurred 5 Miles East of Santa Cruz,Ca.Seismic Instrumentation Not Triggered at Vallecitos,Aerotest Operations or at Univ of California at Berkeley27 June 1988PNO-V-88-044:on 880627,earthquake Occurred 5 Miles East of Santa Cruz,Ca.Seismic Instrumentation Not Triggered at Vallecitos,Aerotest Operations or at Univ of California at BerkeleyEarthquake
PNO-V-88-038, on 880612,earthquake Occurred on Calaveras Fault within 50 Miles of Identified Facilities.All Reactors Shutdown at Time of Earthquake.No Seismic Trips Observed. Insp Revealed No Signs of Damage at Facilities13 June 1988PNO-V-88-038:on 880612,earthquake Occurred on Calaveras Fault within 50 Miles of Identified Facilities.All Reactors Shutdown at Time of Earthquake.No Seismic Trips Observed. Insp Revealed No Signs of Damage at FacilitiesEarthquake
PNO-IV-88-040, on 880509,System Energy Resources,Inc to Manage & Operate All Middle South Nuclear Plants.Arkansas Power & Light & Louisiana Power & Light Will Apply for Appropriate License Amends9 May 1988PNO-IV-88-040:on 880509,System Energy Resources,Inc to Manage & Operate All Middle South Nuclear Plants.Arkansas Power & Light & Louisiana Power & Light Will Apply for Appropriate License Amends
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 Bottom16 February 1988PNO-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-88-017, 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 Named2 February 1988PNO-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-88-001, on 880104,realignment of Nuclear Mgt Updated. Action Provides for Corporate Officer at Each Plant to Elevate Level of Plant in Corporate Mgt Structure4 January 1988PNO-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-II-87-080A, on 871209,plant Shut Down to Correct 0.7 Gpm Unidentified Leak.Elbow & Defective Weld Will Be Replaced & Sent to Westinghouse for Failure Analysis.Specialists Onsite Performing Reviews & Exams14 December 1987PNO-II-87-080A:on 871209,plant Shut Down to Correct 0.7 Gpm Unidentified Leak.Elbow & Defective Weld Will Be Replaced & Sent to Westinghouse for Failure Analysis.Specialists Onsite Performing Reviews & Exams
PNO-II-87-080, on 871209,plant Unit 2 Manually Shut Down from 33% Power to Repair Leak Believed to Be in 6 Inch Pipe to Elbow Weld.Plant Being Placed in Cold Shutdown for Repair. Licensee Anticipates 5 to 10 Day Outage9 December 1987PNO-II-87-080:on 871209,plant Unit 2 Manually Shut Down from 33% Power to Repair Leak Believed to Be in 6 Inch Pipe to Elbow Weld.Plant Being Placed in Cold Shutdown for Repair. Licensee Anticipates 5 to 10 Day Outage
PNO-V-87-076, on 871123-24,two Moderate Earthquakes Centered Near Westmoreland,Ca Occurred,Triggering Seismic Alarms at San Onofre.Unusal Event Declared.Plant Sys & Components Not Adversely Affected.Effects on Other Locations Noted24 November 1987PNO-V-87-076:on 871123-24,two Moderate Earthquakes Centered Near Westmoreland,Ca Occurred,Triggering Seismic Alarms at San Onofre.Unusal Event Declared.Plant Sys & Components Not Adversely Affected.Effects on Other Locations NotedEarthquake
PNO-III-87-138, on 871103,reactor Shutdown After Two MSIV Failed to Close.Valves Recycled Resulting in Acceptable Time Responses.Augumented Insp Team Dispatched to Plant Site to Review Possible Causes of MSIV Closure Problems3 November 1987PNO-III-87-138:on 871103,reactor Shutdown After Two MSIV Failed to Close.Valves Recycled Resulting in Acceptable Time Responses.Augumented Insp Team Dispatched to Plant Site to Review Possible Causes of MSIV Closure Problems
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