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Issue date | Title | Topic | |
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PNO-I-99-039, on 990831,Haddam Neck Plant CR Was Notified by Transportation Contractor,Hittman Transportation Svcs,That Driver of Truck,Left Plant Earlier in Day Noticed Water Leakage from from sea-land Container He Was Transporting | 1 September 1999 | PNO-I-99-039:on 990831,Haddam Neck Plant CR Was Notified by Transportation Contractor,Hittman Transportation Svcs,That Driver of Truck,Left Plant Earlier in Day Noticed Water Leakage from from sea-land Container He Was Transporting | |
PNO-I-98-033, on 980728,licensee Identified Leak of Approximately 1,000 Gallons of Demineralized Water & Chemical Agents Used for Decontamination of Plant Sys.Region I Radiation Specialist Will Be Onsite to Review Licensee | 28 July 1998 | PNO-I-98-033:on 980728,licensee Identified Leak of Approximately 1,000 Gallons of Demineralized Water & Chemical Agents Used for Decontamination of Plant Sys.Region I Radiation Specialist Will Be Onsite to Review Licensee | |
PNO-I-97-073A, on 971210,update of Offsite Surveys for Contaminated Blocks Made.Total of 114 Blocks Out of 3032 Indicated Radioactive Contamination at Greater than Two Times Background Levels.Licensee Plans to Return to Sites | 11 December 1997 | PNO-I-97-073A:on 971210,update of Offsite Surveys for Contaminated Blocks Made.Total of 114 Blocks Out of 3032 Indicated Radioactive Contamination at Greater than Two Times Background Levels.Licensee Plans to Return to Sites | |
PNO-I-97-074, on 971203,licensee Announced Senior Mgt Restructuring,Which Included Naming New Chairman,President, Chief Executive Officer,Chief Financial Officer & Promotion of Director of Site Operations | 4 December 1997 | PNO-I-97-074:on 971203,licensee Announced Senior Mgt Restructuring,Which Included Naming New Chairman,President, Chief Executive Officer,Chief Financial Officer & Promotion of Director of Site Operations | |
PNO-I-97-073, survey Identified Former Cask Wash Down Area Needing Further Characterization & Remediation within Licensee Control Area.Concrete Blocks Used for Temporary Shield Wall Was Used by 15 Households as of 971130 | 1 December 1997 | PNO-I-97-073:survey Identified Former Cask Wash Down Area Needing Further Characterization & Remediation within Licensee Control Area.Concrete Blocks Used for Temporary Shield Wall Was Used by 15 Households as of 971130 | |
PNO-I-97-049, on 970807,inadvertent Actuation of Halon Sys Occurred Affecting CR & Adjacent Central Alarm Station. Personnel Took Photographs of Panel of Halon Actuation Panel,Prior to Actuation.Root Cause of Actuation Evaluated | 8 August 1997 | PNO-I-97-049:on 970807,inadvertent Actuation of Halon Sys Occurred Affecting CR & Adjacent Central Alarm Station. Personnel Took Photographs of Panel of Halon Actuation Panel,Prior to Actuation.Root Cause of Actuation Evaluated | Fire Watch |
PNO-I-97-014, on 970227,retrieval of Contaminated Matl at Vendor Facility Made.Licensee Dispatched Survey Team, Consisting of HP Supervisor,Hp Technician & Radioactive Matl Handler to Vendor Facility to Survey & Retrieve Matl | 28 February 1997 | PNO-I-97-014:on 970227,retrieval of Contaminated Matl at Vendor Facility Made.Licensee Dispatched Survey Team, Consisting of HP Supervisor,Hp Technician & Radioactive Matl Handler to Vendor Facility to Survey & Retrieve Matl | |
PNO-I-96-085, on 961204,board of Directors of Connecticut Yankee Atomic Power Co Voted to Retire Haddam Neck Nuclear Power Generating Station,After Nearly 29 Yrs of Svc.Nrc Responding to Media Inquires & Present at Press Conference | 5 December 1996 | PNO-I-96-085:on 961204,board of Directors of Connecticut Yankee Atomic Power Co Voted to Retire Haddam Neck Nuclear Power Generating Station,After Nearly 29 Yrs of Svc.Nrc Responding to Media Inquires & Present at Press Conference | |
PNO-I-96-080, on 961102,two Radiation Workers Entered Reactor Cavity & Fuel Transfer Canal Area to Inspect & Collect Debris in Preparation for Flooding Cavity to Accomplish Defueling Operation Causing Airborne Contamination | 8 November 1996 | PNO-I-96-080:on 961102,two Radiation Workers Entered Reactor Cavity & Fuel Transfer Canal Area to Inspect & Collect Debris in Preparation for Flooding Cavity to Accomplish Defueling Operation Causing Airborne Contamination | |
PNO-I-94-005, ;on 940113,util Declared & Terminated Unusual Event Due to TS Required Shutdown Due to Three Rods Being Declared Inoperable Based on Position Indication.Senior Resident Inspector,State of CT & Media Advised of Event | 13 January 1994 | PNO-I-94-005;on 940113,util Declared & Terminated Unusual Event Due to TS Required Shutdown Due to Three Rods Being Declared Inoperable Based on Position Indication.Senior Resident Inspector,State of CT & Media Advised of Event | |
ML20059K975 | 29 June 1993 | PNO-1-93-033:on 930622,26 & 27,util Declared Ue as Result of Problems During Electrical Sys Testing.Caused by Loss of Offsite Power Event During Performance of TS a Train Partial Loss of Power Surveillance Testing | |
PNO-I-89-078, notifies of Potential Strike by Svcs Personnel on Weekend of 890909-10.Personnel from Bargaining Unit Will Assist Util Staff in Certain Maint & Const Activities & Util Developed Contingency Plan | 8 September 1989 | PNO-I-89-078:notifies of Potential Strike by Svcs Personnel on Weekend of 890909-10.Personnel from Bargaining Unit Will Assist Util Staff in Certain Maint & Const Activities & Util Developed Contingency Plan | |
PNO-I-89-013, on 890224,licensee Identified Unmonitored Release Path from Uncontrolled Spent Fuel Bldg Drain Through Switchyard Drain Sys.Caused by Radwaste Water Being Erroneously Discharged Into Floor Drain.Drain Plugged | 24 February 1989 | PNO-I-89-013:on 890224,licensee Identified Unmonitored Release Path from Uncontrolled Spent Fuel Bldg Drain Through Switchyard Drain Sys.Caused by Radwaste Water Being Erroneously Discharged Into Floor Drain.Drain Plugged | |
ML20236P504 | 13 November 1987 | PNS-I-87-018:on 871112,handgun Detected in Duffle Bag of Contract Security Guard.Guard Denied Access to Plant & Suspended Pending Further Investigation.Plant Security Personnel Confirmed That Guard Was Licensed to Carry Gun | |
PNO-I-87-056, on 870620,security Guard Found in Possession of half-smoked Marijuana Cigarette.Guard Escorted Offsite & & Site Access Terminated.State of CN Police Notified. Addl Drug Screening of Personnel Under Consideration | 22 June 1987 | PNO-I-87-056:on 870620,security Guard Found in Possession of half-smoked Marijuana Cigarette.Guard Escorted Offsite & & Site Access Terminated.State of CN Police Notified. Addl Drug Screening of Personnel Under Consideration | |
PNO-I-86-096, on 861130,reactor Tripped from Full Power Due to Low Water Level & Steam/Feed Mismatch in Steam Generator 3.Caused by Technician Shorting Out Control Power.Cracked Check Valve Replaced | 1 December 1986 | PNO-I-86-096:on 861130,reactor Tripped from Full Power Due to Low Water Level & Steam/Feed Mismatch in Steam Generator 3.Caused by Technician Shorting Out Control Power.Cracked Check Valve Replaced | |
PNO-I-86-055, on 860723,worker Accumulated High Quarterly Radiation Exposure While Changing Video Camera Position for Witnessing Hydrostatic Test in Steam Generator.Caused by Health Physics Technician Monitoring Error | 23 July 1986 | PNO-I-86-055:on 860723,worker Accumulated High Quarterly Radiation Exposure While Changing Video Camera Position for Witnessing Hydrostatic Test in Steam Generator.Caused by Health Physics Technician Monitoring Error | Hydrostatic |
PNO-I-86-050A, on 860715,plant Taken to Cold Shutdown. Preparations for Tube Plugging of Approx 70 Steam Generator Tubes w/50% or Greater through-wall Indications in Top Inch of Rolled Area of Tubes Continuing | 16 July 1986 | PNO-I-86-050A:on 860715,plant Taken to Cold Shutdown. Preparations for Tube Plugging of Approx 70 Steam Generator Tubes w/50% or Greater through-wall Indications in Top Inch of Rolled Area of Tubes Continuing | |
PNO-I-86-050, on 860711,plant Shut Down Due to Repairs on Charging Pump a Not Completed within 72 H Limit.Delay Caused by Galling of Rotating Element Locking Nut.Further Delays Expected Due to Tube Cracking Problems | 15 July 1986 | PNO-I-86-050:on 860711,plant Shut Down Due to Repairs on Charging Pump a Not Completed within 72 H Limit.Delay Caused by Galling of Rotating Element Locking Nut.Further Delays Expected Due to Tube Cracking Problems | |
PNO-I-86-021, on 860226,fuel Element Dropped 3 Ft After Being Lifted W/Upper Guide Structure Out of Reactor Vessel for Refueling.Insp in Progress.Recovery Will Be Attempted on 860227 | 27 February 1986 | PNO-I-86-021:on 860226,fuel Element Dropped 3 Ft After Being Lifted W/Upper Guide Structure Out of Reactor Vessel for Refueling.Insp in Progress.Recovery Will Be Attempted on 860227 | |
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-80-041, on 800313,radiological Surveys of Site Grounds Uncovered Three Small Patches of Contaminated Soil Outside Controlled Area.Approx Three Tablespoons Soil Removed.Survey Continuing to Determine If Other Areas Contaminated | 14 March 1980 | PNO-I-80-041:on 800313,radiological Surveys of Site Grounds Uncovered Three Small Patches of Contaminated Soil Outside Controlled Area.Approx Three Tablespoons Soil Removed.Survey Continuing to Determine If Other Areas Contaminated | |
ML20248H944 | 9 May 1978 | PNO-78-105:on 780508,NRC Region I,Received Notification of Licensee Determination That in Event of LOCA Coincident W/Loss of Offsite Power & Failure of 1 DG to Start,Connected Load on Remaining DG Would Exceed Long Term Load Rating | |
ML20248H781 | 1 May 1978 | PNO-78-100:on 780427 During Handling of Spent Fuel,Binding Detected Between Fuel Assembly & Storage Rack.Fuel Assembly Returned to Initial Position.Licensee Evaluating Problem. State of Connecticut Informed & Press Release Planned | |
ML20249A747 | 28 April 1978 | PNO-78-019:on 780428,anonymous Call Stating That 3 Bombs Had Been Placed in Berlin Corp Headquarters Bldg to Protest Nuclear Power Was Received.Bomb Threat Procedures Were Instituted But Bldg Was Not Evacuated | |
ML20248J903 | 10 April 1978 | PNO-78-075:on 780406,approx 300 Gallons of Unneutralized Water Was Released to Discharge Canal.State of CT Informed | |
ML20248L292 | 23 March 1978 | PNO-78-059:on 780323,failure of Terminal Blocks Inside of Protective Boxes During Environ Qualification Testing Occurred.Licensee Planning Shutdown Late on 780323 to Replace Presently Installed Aluminum Boxes That Failed | |
ML20249A021 | 27 January 1978 | PNO-78-017:on 780127,plant Planning Shutdown to Replace 48 Terminal Blocks Located Inside Containment Necessary for Operation of Certain Safety Related Equipment & to Balance Main Turbine.Shutdown Expected to Last 24-36 Hrs | |
ML20151Y350 | 19 September 1977 | PNO-77-163:on 770918,waste Gas Tank Rupture Disc Failed While Tank Was Being Filled,Resulting in Monitored,Unplanned Release of Radioactive Material Environment.State of Connecticut Informed.Licensee Plans to Notify Media |