ML19256C789
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| ML19256C789 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 03/19/1979 |
| From: | Cohen L, Higginbotham L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-79-055, PNO-79-55, NUDOCS 7910120467 | |
| Download: ML19256C789 (1) | |
Similar Documents at Maine Yankee | |
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Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO
MONTHYEARPNO-I-99-030, on 990630,licensee Notified NRC Region I That Shipping Container Loaded with Internally Contaminated Vacuum Cleaning Device,Used at Maine Yankee for Asbestos Removal,Was Damaged.No Radioactive Matl Was Released1999-06-30030 June 1999
[Table view]PNO-I-99-030:on 990630,licensee Notified NRC Region I That Shipping Container Loaded with Internally Contaminated Vacuum Cleaning Device,Used at Maine Yankee for Asbestos Removal,Was Damaged.No Radioactive Matl Was Released PNO-I-97-046, on 970801,Maine Yankee Announced That Negotiations W/Peco Have Ceased & Plant Owners Agreed to Proceed W/Decommissioning.Majority of Contractors Released in May When Board Elected to Minimize Spending1997-08-0404 August 1997 PNO-I-97-046:on 970801,Maine Yankee Announced That Negotiations W/Peco Have Ceased & Plant Owners Agreed to Proceed W/Decommissioning.Majority of Contractors Released in May When Board Elected to Minimize Spending PNO-I-96-086A, on 961205,Maine Yankee Personnel Identified Inadequate Cable Separation Issues Affecting Reactor Protection Sys.Licensee in Process of Developing Scope for Expanded Review & Process for Field Verification1996-12-16016 December 1996 PNO-I-96-086A:on 961205,Maine Yankee Personnel Identified Inadequate Cable Separation Issues Affecting Reactor Protection Sys.Licensee in Process of Developing Scope for Expanded Review & Process for Field Verification PNO-I-96-086, on 961205,plant Engineers Identified Three Inadequate Cable Seperation Issues Affecting Reactor Protection Sys.Both Buttons of Either Pair of Trip Push Buttons Required to Be Depressed,To Initiate Manual Trip1996-12-0909 December 1996 PNO-I-96-086:on 961205,plant Engineers Identified Three Inadequate Cable Seperation Issues Affecting Reactor Protection Sys.Both Buttons of Either Pair of Trip Push Buttons Required to Be Depressed,To Initiate Manual Trip PNO-I-90-066, on 900816,notified of Unplanned Shutdown for Greater than 48 H to Repair Letdown Isolation Valve LD-M-2.Licensee to Repair LD-M-2 Before Coolant Activity Elevated.State of Me Notified1990-08-16016 August 1990 PNO-I-90-066:on 900816,notified of Unplanned Shutdown for Greater than 48 H to Repair Letdown Isolation Valve LD-M-2.Licensee to Repair LD-M-2 Before Coolant Activity Elevated.State of Me Notified PNO-I-90-046A, on 900618,licensee Examined Ctr Fingers of 106 of 111 Used Control Element Assemblies Onsite,W/Exam of Other 5 Ctr Fingers Planned.No Defects Found in 43 Ctr Fingers of Newer Design.Meeting W/Util & C-E Set for 9006251990-06-18018 June 1990 PNO-I-90-046A:on 900618,licensee Examined Ctr Fingers of 106 of 111 Used Control Element Assemblies Onsite,W/Exam of Other 5 Ctr Fingers Planned.No Defects Found in 43 Ctr Fingers of Newer Design.Meeting W/Util & C-E Set for 900625 PNO-I-90-046, on 900607,control Element Assemblies (Ceas) Fully Withdrawn from Fully Inserted Position During Tests. Attempts to Insert CEAs Further Were Unsuccessful.Fuel Assembly Visually Inspected.State of Me Notified1990-06-13013 June 1990 PNO-I-90-046:on 900607,control Element Assemblies (Ceas) Fully Withdrawn from Fully Inserted Position During Tests. Attempts to Insert CEAs Further Were Unsuccessful.Fuel Assembly Visually Inspected.State of Me Notified PNO-I-89-090, on 891107,unplanned Shutdown for More than 48 H Due to Deterioration of Number 1 Reactor Coolant Pump First & Second Stage Shaft Seals.Licensee in Process of Resolving Seal Performance Problem1989-11-0808 November 1989 PNO-I-89-090:on 891107,unplanned Shutdown for More than 48 H Due to Deterioration of Number 1 Reactor Coolant Pump First & Second Stage Shaft Seals.Licensee in Process of Resolving Seal Performance Problem PNO-I-89-077, on 890907,bomb Threats Received to Licensee Corporate Ofc.Searches for Explosive Devices Conducted by Both Plant Operations & Security Personnel in Both Protected & owner-controlled Areas.No Explosive Devices Found1989-09-0808 September 1989 PNO-I-89-077:on 890907,bomb Threats Received to Licensee Corporate Ofc.Searches for Explosive Devices Conducted by Both Plant Operations & Security Personnel in Both Protected & owner-controlled Areas.No Explosive Devices Found PNO-I-87-058A, on 870625,licensee Completed Unscheduled Shutdown to Repair Vibration Problems on Main Turbine Generator Unit.Plant Continued to Experience Vibrations. Plant Manually Tripped from 25% Power on 8707011987-07-0101 July 1987 PNO-I-87-058A:on 870625,licensee Completed Unscheduled Shutdown to Repair Vibration Problems on Main Turbine Generator Unit.Plant Continued to Experience Vibrations. Plant Manually Tripped from 25% Power on 870701 PNO-I-87-058, on 870623,plant Shutdown Due to Higher Vibrations of Turbine/Generator Radial.Licensee Estimates Shutdown Will Be Min of 3 Days1987-06-24024 June 1987 PNO-I-87-058:on 870623,plant Shutdown Due to Higher Vibrations of Turbine/Generator Radial.Licensee Estimates Shutdown Will Be Min of 3 Days PNO-I-86-101, on 861230,leak from Blank Flange on Addition Line Connected to Vol Control Tank Discovered.Caused by Personnel Error.Release Well Below Tech Spec Limits & Radiation Monitor Readings Subsequently Decreased to Normal1986-12-30030 December 1986 PNO-I-86-101:on 861230,leak from Blank Flange on Addition Line Connected to Vol Control Tank Discovered.Caused by Personnel Error.Release Well Below Tech Spec Limits & Radiation Monitor Readings Subsequently Decreased to Normal 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 Damage1985-09-27027 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 PNO-I-85-055, instrumentation Valves Mispositioned.State of Me Notified by Telcon on 850807.W/o Encl1985-08-0505 August 1985 PNO-I-85-055:instrumentation Valves Mispositioned.State of Me Notified by Telcon on 850807.W/o Encl PNO-I-82-023A, on 820310,after Replacing All Studs on Steam Generator 2 Cold Leg Manway,Nondestructive Exam Determined Four Studs Cracked.Small Leak Detected from Reactor Vessel Head Seal1982-03-16016 March 1982 PNO-I-82-023A:on 820310,after Replacing All Studs on Steam Generator 2 Cold Leg Manway,Nondestructive Exam Determined Four Studs Cracked.Small Leak Detected from Reactor Vessel Head Seal PNO-I-82-023, on 820310,stud Failure Noted in RCS Pressure boundary-bolted Closures.All Studs Affected by Primary Sys Leak of Boric Acid Will Be Replaced1982-03-12012 March 1982 PNO-I-82-023:on 820310,stud Failure Noted in RCS Pressure boundary-bolted Closures.All Studs Affected by Primary Sys Leak of Boric Acid Will Be Replaced PNO-I-82-013, NRC Review of Safety Injection Actuation Circuits at Facility Revealed That Sys Could Not Withstand Single Active Failure for Certain Analyzed Accidents. Licensee Is Preparing Design Change1982-01-29029 January 1982 PNO-I-82-013:NRC Review of Safety Injection Actuation Circuits at Facility Revealed That Sys Could Not Withstand Single Active Failure for Certain Analyzed Accidents. Licensee Is Preparing Design Change PNO-I-81-102, on 810910,2-inch Hole Developed in 16-inch High Pressure Turbine Extraction Steam Line in Turbine Bldg. Licensee Commenced Controlled Shutdown & Implemented Emergency Plan to Evacuate Unnecessary Personnel1981-09-10010 September 1981 PNO-I-81-102:on 810910,2-inch Hole Developed in 16-inch High Pressure Turbine Extraction Steam Line in Turbine Bldg. Licensee Commenced Controlled Shutdown & Implemented Emergency Plan to Evacuate Unnecessary Personnel PNO-I-81-094, on 810822,offsite Warning Sys Was Inadvertently Initiated.Caused by State Police Maint Activities on State Wide Paging Sys.Sirens Cut Off from Site1981-08-24024 August 1981 PNO-I-81-094:on 810822,offsite Warning Sys Was Inadvertently Initiated.Caused by State Police Maint Activities on State Wide Paging Sys.Sirens Cut Off from Site ML20009G3411981-07-30030 July 1981 Updated PNS-I-81-016A:intensive Investigation of 810726 Bomb Threat Underway.Polygraph Exams for Some Plant Personnel Considered.Pysical Evidence Being Examined ML20009G6121981-07-27027 July 1981 PNS-I-81-016:on 810726,security Guard Discovered Bomb Threat Written on Floor within Spent Fuel Area.Search Revealed No Bomb PNO-I-81-050, on 810417,discovered That Containment Air Particulate Detector Sample Valve Had Been Open for Several Days.Total Release Was 0.03 Ci.Valve Was Closed,Capped & Locked Upon Discovery1981-04-20020 April 1981 PNO-I-81-050:on 810417,discovered That Containment Air Particulate Detector Sample Valve Had Been Open for Several Days.Total Release Was 0.03 Ci.Valve Was Closed,Capped & Locked Upon Discovery PNO-I-81-042, on 810331,union Walkout Called for by Union Representatives for Contract Guard Force.No Workers Joined Strike.Strike Contingency Plans Were Implemented & Substitute Security Personnel Enlisted1981-03-31031 March 1981 PNO-I-81-042:on 810331,union Walkout Called for by Union Representatives for Contract Guard Force.No Workers Joined Strike.Strike Contingency Plans Were Implemented & Substitute Security Personnel Enlisted ML19350B7801981-03-17017 March 1981 PNS-I-81-007:on 810316,senior Reactor Operator Proceeded to Controlled Area W/O Showing Proper Identification.Operator Had Left Identification in Control Room Earlier That Day PNO-I-81-031, on 810303,switchboard Operator Received Telephone Message Re Threat of Sabotage.Search of Facility & re-identification of Onsite Personnel Was Performed.Fbi Has Been Informed.Info Assessment Team & State of Me Notified1981-03-0303 March 1981 PNO-I-81-031:on 810303,switchboard Operator Received Telephone Message Re Threat of Sabotage.Search of Facility & re-identification of Onsite Personnel Was Performed.Fbi Has Been Informed.Info Assessment Team & State of Me Notified PNO-I-81-029, on 810227,security Guards Went on Strike, Because of Inability to Negotiate Acceptable Contract W/ Employer.Licensee Has Implemented Strike Contingency Plans. State of Me Has Been Notified1981-02-27027 February 1981 PNO-I-81-029:on 810227,security Guards Went on Strike, Because of Inability to Negotiate Acceptable Contract W/ Employer.Licensee Has Implemented Strike Contingency Plans. State of Me Has Been Notified PNO-I-81-021, on 810213,based on Results from Charpy V-notch Impact Tests,Licensee Notified That Hydrostatic Test of RCS in Mar 1980 Performed at 27 Degrees Below Min Pressurization Temp1981-02-17017 February 1981 PNO-I-81-021:on 810213,based on Results from Charpy V-notch Impact Tests,Licensee Notified That Hydrostatic Test of RCS in Mar 1980 Performed at 27 Degrees Below Min Pressurization Temp PNO-I-80-140, negotiations Between Labor & Plant Mgt Have Not Produced New Contract or Extension.Current Contract Expires at Midnight & Strike Is Possible.Strike Would Include Reactor Operators & Other Nuclear Technicians1980-09-30030 September 1980 PNO-I-80-140:negotiations Between Labor & Plant Mgt Have Not Produced New Contract or Extension.Current Contract Expires at Midnight & Strike Is Possible.Strike Would Include Reactor Operators & Other Nuclear Technicians PNO-I-80-129, on 800914,plant Was Shutdown When One of Three Seals Failed on Three Reactor Coolant Pump.Shutdown Expected to Last Until 8009181980-09-15015 September 1980 PNO-I-80-129:on 800914,plant Was Shutdown When One of Three Seals Failed on Three Reactor Coolant Pump.Shutdown Expected to Last Until 800918 PNO-I-80-119, on 800804,all Long Distance Telephone Svc for Site Was Lost Due to Cable Cut in Falmouth,Me.Resident Inspector Verified State Police Radio & Microwave Availability1980-08-0505 August 1980 PNO-I-80-119:on 800804,all Long Distance Telephone Svc for Site Was Lost Due to Cable Cut in Falmouth,Me.Resident Inspector Verified State Police Radio & Microwave Availability PNO-I-80-063, on 800417,contract Guard Svc Employee Was Shot in Foot When Revolver Accidentally Discharged During Supervised Range Practice.Guard Trainee Admitted for Treatment to Hosp & Released1980-04-23023 April 1980 PNO-I-80-063:on 800417,contract Guard Svc Employee Was Shot in Foot When Revolver Accidentally Discharged During Supervised Range Practice.Guard Trainee Admitted for Treatment to Hosp & Released PNO-I-80-054, on 800402,plant Tripped from Full Power Due to Ground in Reactor Protective Sys.Ground Will Be Repaired & Plant Returned to Svc1980-04-0202 April 1980 PNO-I-80-054:on 800402,plant Tripped from Full Power Due to Ground in Reactor Protective Sys.Ground Will Be Repaired & Plant Returned to Svc PNO-I-80-031, on 800131,licensee Identified Nine Fuel Assemblies Containing Leaking Fuel Pins.At Least Two Pins Appeared to Have Missing Segments.Cause Not Stated.Damaged Fuel Assemblies Being Replaced1980-02-21021 February 1980 PNO-I-80-031:on 800131,licensee Identified Nine Fuel Assemblies Containing Leaking Fuel Pins.At Least Two Pins Appeared to Have Missing Segments.Cause Not Stated.Damaged Fuel Assemblies Being Replaced PNO-I-80-030, on 800218,while Refueling Core W/Pool Clarity & W/Approx 1/3 Core in Place,Problems Experienced in Seating Assembly.Assembly Placed in Core Improperly & Tilted Over. Area Evacuated1980-02-19019 February 1980 PNO-I-80-030:on 800218,while Refueling Core W/Pool Clarity & W/Approx 1/3 Core in Place,Problems Experienced in Seating Assembly.Assembly Placed in Core Improperly & Tilted Over. Area Evacuated PNO-I-80-022, on 800205,contractor Employee Fell Into Spent Fuel Pool.Caused by Blow to Head.No Overexposure Occured & No Water Was Ingested.Counts Indicate 0.078 Uci Fixed Skin Contamination.Media Coverage Evident1980-02-0707 February 1980 PNO-I-80-022:on 800205,contractor Employee Fell Into Spent Fuel Pool.Caused by Blow to Head.No Overexposure Occured & No Water Was Ingested.Counts Indicate 0.078 Uci Fixed Skin Contamination.Media Coverage Evident PNO-I-80-013, on 800122,local Boilermaker Union Formed Picket Line to Protest Not Being Awarded Contract to Retube Plant Main Condenser.Grievance Resulted in Slashed Tires & Threat to Maint Supervisor.Alternative Entrance Opened1980-01-22022 January 1980 PNO-I-80-013:on 800122,local Boilermaker Union Formed Picket Line to Protest Not Being Awarded Contract to Retube Plant Main Condenser.Grievance Resulted in Slashed Tires & Threat to Maint Supervisor.Alternative Entrance Opened PNO-I-79-007, on 791016,while Performing 24-h Load Test of 1B Emergency Diesel Generator,Fire Occurred in Turbocharger Exhaust Piping.Diesel Shut Down on Generator Trip.Cause of Trip Unknown1979-10-16016 October 1979 PNO-I-79-007:on 791016,while Performing 24-h Load Test of 1B Emergency Diesel Generator,Fire Occurred in Turbocharger Exhaust Piping.Diesel Shut Down on Generator Trip.Cause of Trip Unknown ML19209C9541979-09-28028 September 1979 PNO-I-79-03:on 790928,unscheduled Gaseous Release Occurred During Venting of Safety Injection Tank.Caused by Lack of Coordination Between Personnel Venting Tank & Operator at Waste Gas Storage Drum ML19248C3871979-05-25025 May 1979 PNO-79-127:calibr Performed on Steam Generator Pressure Transmitters & Associated Bistables in Error.Facility Operated W/Less Conservative Reactor Trip Setpoint Then Specified in SAR from Aug 1978-Mar 15,1979 ML19256C7891979-03-19019 March 1979 PNO-79-55:on 790315,radioactive Release of Noble Gases & Iodine Occurred in Excess of Regulatory Limits.Caused by Leak in Residual Heat Removal Sys.Some Iodine Release Continues Offsite.Concentrates Did Not Exceed Spec Level ML20151X5811977-09-12012 September 1977 PNO-77-158:local 497 of Utility Workers of America Went on Strike & Established Picket Line at Maine Yankee.Security Force Not Affected.Unit at 100% Power & Being Operated by Facility Supervisors & Engineering Personnel ML20151U5031977-05-19019 May 1977 PNO-77-088:IBEW Local of Central Maine Power Co on Strike & Has Established Picket Line at Plant.Strike Will Extend Refueling Outage Currently in Process ML20236V3911975-08-29029 August 1975 PN-75-080:labor Negotiations Underway for New Union Contract.Mgt Optimistic That Strike Will Be Averted.Licensee Plans to Operate w/non-union People.Plan Developed,Reviewed & Approved by on & Offsite Committees 1999-06-30 Category:TEXT-INSPECTION & AUDIT & I&E CIRCULARS MONTHYEARPNO-I-99-030, on 990630,licensee Notified NRC Region I That Shipping Container Loaded with Internally Contaminated Vacuum Cleaning Device,Used at Maine Yankee for Asbestos Removal,Was Damaged.No Radioactive Matl Was Released1999-06-30030 June 1999
[Table view]PNO-I-99-030:on 990630,licensee Notified NRC Region I That Shipping Container Loaded with Internally Contaminated Vacuum Cleaning Device,Used at Maine Yankee for Asbestos Removal,Was Damaged.No Radioactive Matl Was Released IR 05000309/19990011999-06-0707 June 1999 Insp Rept 50-309/99-01 on 990214-0513.No Violations Noted. Major Areas Inspected:Aspects of Licensee Operations,Maint, Engineering & Plant Support IR 05000309/19980051999-03-26026 March 1999 Insp Rept 50-309/98-05 on 981101-990213.Violations Noted & Being Treated as non-cited Violations.Major Areas Inspected: Licensee Operations,Engineering & Plant Support IR 05000309/19980041998-11-27027 November 1998 Insp Rept 50-309/98-04 on 980803-1031.No Violations Noted. Major Areas Inspected:Operations,Engineering,Maintenance & Plant Support ML20154H6421998-10-0808 October 1998 Notice of Violation from Insp During Dec 1995 & Oct 1997. Violations Noted:Util Did Not Determine Operating Limits for Cycle 13 Operations Using RELAP5YA SBLOCA Anaylsis Required by TS 5.14.2 ML20154H6151998-10-0808 October 1998 Notice of Violation from Insp on 960715-0826 & 1208-970315. Violations Noted:During Periods of Power Operation from Dec 1991 Until 960817 No Channels of High Containment Pressure or Low Pressurizer Pressure Operable in SIAS a ML20195D3921998-10-0808 October 1998 EN-98-062:on 981008,consistent with Commission Direction Staff Intends to Issue NOV to Licensee.Licensee Has Not Been Specifically Informed of Enforcement Decision.Licensee Has Thirty Days from Date of Notices in Which to Respond IR 05000309/19980031998-09-28028 September 1998 Insp Rept 50-309/98-03 on 980503-0801.No Violations Noted. Major Areas Inspected:Operations,Engineering & Plant Support IR 05000309/19980021998-08-26026 August 1998 Insp Rept 50-309/98-02 on 980317-0506.No Violations Noted. Major Areas Inspected:Water Samples Collected from within & in Vicinity of Wiscasset Landfill ML20247P1331998-05-20020 May 1998 Notice of Violation from Insp on 980308-0502.Violation Noted:On 980413,items Associated W/Scaffolding Project (Pins,Tie Wraps,Wood Toe Boards & Orange Safety Net) Inside Fuel Foreign Matl Exclusion Zone & Not Logged as Required ML20217H2491998-03-26026 March 1998 Notice of Violation from Insp on 971208-980307.Violation Noted:Air Regulator Outlet Valve & Test Device Relief Valve Isolation Valve Were Not Closed as Specified by Procedure ML20197K1761997-12-29029 December 1997 Notice of Violation from Insp on 970908-1129.Violation Noted:On 971010,security Force Member Circumvented Reset Button Associated W/Audible Alarm in 1 of Assessment Towers IR 05000309/19970081997-12-29029 December 1997 Insp Rept 50-309/97-08 on 970908-1129.Violations Noted.Major Areas Inspected:Operations,Maint,Engineering & Plant Support Re Security & Safeguards Activities ML20154G2081997-10-28028 October 1997 Partially Deleted Investigation Rept 1-96-043 on 971028.No Noncompliance Noted.Major Areas Investigated:Allegations Re Falsification of Test Records by Licensee Engineers IR 05000309/19970071997-10-0101 October 1997 Insp Rept 50-309/97-07 on 970728-0907.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support ML20210N9631997-08-14014 August 1997 Notice of Violation from Insp on 970609-0727.Violation Noted:Operator Failed to Properly Open Suction valve,CPU-2 Prior to Starting Pump P-8 IR 05000309/19970061997-08-14014 August 1997 Insp Rept 50-309/97-06 on 970609-0727.Violations Noted.Major Areas Inspected:Licensee Operations,Engineering,Maint & Plant Support ML20210N8271997-08-12012 August 1997 Insp Rept 50-309/97-02 on 970218-0618.No Violations Noted. Major Areas Inspected:Aspects of Licensees Engineering Activities in Response to GL 96-01,logic Circuit Testing & Cable Separation Assessment Activities PNO-I-97-046, on 970801,Maine Yankee Announced That Negotiations W/Peco Have Ceased & Plant Owners Agreed to Proceed W/Decommissioning.Majority of Contractors Released in May When Board Elected to Minimize Spending1997-08-0404 August 1997 PNO-I-97-046:on 970801,Maine Yankee Announced That Negotiations W/Peco Have Ceased & Plant Owners Agreed to Proceed W/Decommissioning.Majority of Contractors Released in May When Board Elected to Minimize Spending IR 05000309/19970051997-07-11011 July 1997 Insp Rept 50-309/97-05 on 970427-0608.Violations Noted.Major Areas Inspected:Operations,Engineering,Maint & Plant Support ML20210L0811997-07-11011 July 1997 Notice of Violation from Insp on 970414-0608.Violation Noted:Ist Requirements of 10CFR50.55a(f) Were Implemented Without Authorization of Director of NRR as Listed ML20154G2001997-06-27027 June 1997 Partially Deleted Investigation Rept 1-96-025 on 970627.No Noncompliance Noted.Major Areas Investigated:Allegations Re Inaccurate Info Provided to NRC Concerning Capacity of Atmospheric Steam Dump IR 05000309/19970031997-06-0505 June 1997 Insp Rept 50-309/97-03 on 970316-0426.Violations Noted. Major Areas Inspected:Aspects of Licensee Operations, Engineering,Maintenance & Plant Support ML20140C6911997-06-0505 June 1997 Notice of Violation from Insp on 970316-0426.Violation Noted:During Testing of Containment Spray Pump on 960409, Operators Failed to Stop Test When Control Room Operator Unexpectedly Started Low Pressure Safety Injection Pump IA-97-348, Partially Withheld Investigation Rept 1-96-040.Noncompliance Noted.Major Areas Investigated:To Determine Whether Incomplete & or Inaccurate Info Willfully Provided by Utility During 941014 Enforcement Conference1997-05-30030 May 1997 Partially Withheld Investigation Rept 1-96-040.Noncompliance Noted.Major Areas Investigated:To Determine Whether Incomplete & or Inaccurate Info Willfully Provided by Utility During 941014 Enforcement Conference ML20211J9171997-05-30030 May 1997 Partially Withheld Investigation Rept 1-96-040.Noncompliance Noted.Major Areas Investigated:To Determine Whether Incomplete & or Inaccurate Info Willfully Provided by Utility During 941014 Enforcement Conference IR 05000309/19970011997-05-0202 May 1997 Insp Rept 50-309/97-01 on 970126-0315.No Violations Noted. Major Areas Inspected:Licensee Operations,Engineering,Maint, Plant Support & Conduct of Security & Safeguards Activities IR 05000309/19960141997-04-0808 April 1997 Errata to Insp Rept 50-309/96-14.Second Bullet on Page 39 Contained Typo ML20137B6191997-03-13013 March 1997 Notice of Violation from Insp on 961208-970125.Violation Noted:On Four Occasions from 970107-13,problems Identified That Invalidated Checkout.In Each Problem,Cause of Crane Failure Not Determined & Operability of Crane Not Evaluated ML20137B6231997-03-13013 March 1997 Insp Rept 50-309/96-14 on 961208-970125.Violations Noted. Major Areas Inspected:Operations,Maintenance,Engineering & Plant Support IR 05000309/19960161997-02-11011 February 1997 Insp Rept 50-309/96-16 on 961208-970128.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000309/19960131997-01-15015 January 1997 Insp Rept 50-309/96-13 on 961027-1207.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support PNO-I-96-086A, on 961205,Maine Yankee Personnel Identified Inadequate Cable Separation Issues Affecting Reactor Protection Sys.Licensee in Process of Developing Scope for Expanded Review & Process for Field Verification1996-12-16016 December 1996 PNO-I-96-086A:on 961205,Maine Yankee Personnel Identified Inadequate Cable Separation Issues Affecting Reactor Protection Sys.Licensee in Process of Developing Scope for Expanded Review & Process for Field Verification PNO-I-96-086, on 961205,plant Engineers Identified Three Inadequate Cable Seperation Issues Affecting Reactor Protection Sys.Both Buttons of Either Pair of Trip Push Buttons Required to Be Depressed,To Initiate Manual Trip1996-12-0909 December 1996 PNO-I-96-086:on 961205,plant Engineers Identified Three Inadequate Cable Seperation Issues Affecting Reactor Protection Sys.Both Buttons of Either Pair of Trip Push Buttons Required to Be Depressed,To Initiate Manual Trip ML20135F5531996-12-0909 December 1996 Notice of Violation from Insp on 960915-1026.Violation Noted:Safeguards Info Was Left Unattended for Approx 2 H on Desk in Security Ofc Inside Protected Areas ML20135F5711996-12-0909 December 1996 Insp Rept 50-309/96-12 on 960915-1026.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000309/19960111996-11-20020 November 1996 Insp Rept 50-309/96-11 on 960811-0913.Violations Being Considered for Escalated Enforcement Action.Major Areas Inspected:Surveillance Procedures,Test & Independent Oversight Activities IR 05000309/19960091996-11-20020 November 1996 Insp Rept 50-309/96-09 on 960804-0914.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000309/19960101996-09-20020 September 1996 Insp Rept 50-309/96-10 on 960806-09.Violation Noted But Not Cited.Major Areas Inspected:Engineering Support of Facility & Equipment ML20154G5801996-09-0606 September 1996 Investigation Rept 1-95-050.Noncompliance Noted.Major Areas Investigated:Adequacy of ECCS at Maine Yankee Atomic Power Station ML0823207651995-01-0505 January 1995 Suppl 3 to NRC Info Notice 86-108, Degradation of RCS Pressure Boundary Resulting from Boric Acid Corrosion ML20059A3281993-12-17017 December 1993 Notice of Violation from Insp on 931012-1119.Violation Noted:Cea Deviation Alarms from Both Computer Pulse Counting Sys & Reed Switch Indicating Sys Were Inoperable & Had Apparently Been in That Condition Since Plant Startup IR 05000309/19930231993-12-16016 December 1993 Insp Rept 50-309/93-23 on 931012-1119.No Violations Noted. Major Areas Inspected:Plant Activities Including Operations, Maint & Surveillance,Engineering & Technical Support & Overall Plant Support IR 05000309/19930261993-12-14014 December 1993 Exam Rept 50-309/93-26OL on 931115 & 16-18.Exam Results: All Individuals Passed Test & Were Issued Licenses IR 05000309/19930251993-12-0808 December 1993 Insp Rept 50-309/93-25 on 931115-19.No Violations Noted. Major Areas Inspected:Protected Area & Isolation Zone Lighting,Vital Area Physical Barriers & Detection Aids, Protected & Vital Area Acess of Personnel & Power Supply IR 05000309/19930241993-11-24024 November 1993 Insp Rept 50-309/93-24 on 931108-12.Inspectors Found Effective EP Program Implementation in All Areas.Major Areas Inspected:Ep Program Changes,Emergency Facilities,Equipment & Supplies & Organization & Mgt Control ML20059J7171993-11-0404 November 1993 Notice of Violation from Insp on 930917-21.Violation Noted: Maint Contract Electricians Did Not Reset Torque Switch to 1 & 1 Prior to Installation IR 05000309/19930221993-10-25025 October 1993 Insp Rept 50-309/93-22 on 930830-1011.Violation Noted But Not Cited.Major Areas Inspected:Operations,Maint & Surveillance,Engineering & Overall Plant Support IR 05000309/19930171993-10-22022 October 1993 Insp Rept 50-309/93-17 on 930917-21.Violations Noted.Major Areas Inspected:Testing of safety-related MOVs Witnessed by Inspector & Safety of Equipment,Matls & Personnel IR 05000309/19930211993-10-19019 October 1993 Insp Rept 50-309/93-21 on 930823-27.No Violations Noted. Major Areas Inspected:Emergency Diesel Generator Load Permissive Relays 1999-06-07 |
Text
h PRELIMINARY NOTIFICATION ^
f' March,19, 1979 PRELIMINARY NOTIFICATION OF EVF" 0R UNUSUAL OCCURRENCE--PNO-79-55
_This preliminary notification constitutes EARLY notice of event of POSSIBLE safety or public interest significance.
The information presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date.
Facility:
Maine Yankee Atomic Power Company Maine Yankee Plant Wiscasset, Maine
Subject:
RADI0 ACTIVE RELEASE IN EXCESS OF REGULATORY LIMITS The plant experienced a leak in the Residual Heat Removal System (RHR) at 1:15 P.M. on March 15 while cooling down to the Cold shutdown condition.
A valve was shut to isolate the leaking component but it leaked past the seat.
The release was stopped at 2:45 P.M. by depressurizing the RHR system. A monitored release of noble gases and iodines occurred from the spray building to the plant vent stack.
An estimated 127 Ci of noble gas a.d 0.034 Ci of iodine were released.
The Technical Specifi-cation one-hour gaseous release limit on radioactive materials, other than iodines and particulates with half-lives greater than 8 days, was exceeded.
Traces of iodine release are continuing.
Off site concen-trations did not exceed the level stated in 10 CFR 20 Appendix B, Table II.
The State of Maine has been informed.
A press release is not planned by the licensee or NRC.
NRC, Region I, (Philadelphia) received notification of this occurrence by telephone from the plant Chemistry Supervisor at 3:30 P.M. on March 16,1979.
Contact:
LKCohen, IE x28188 LBHigginbotham, IE x28138 Distribution:
Transmitted H St b3b Chairman Hendrie Commissioiie~r Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA Commissioner Gilinsky (For Distribution)
Transmitted: MNBB2*.33 P. Bldg b J. G. Davis, 1.* M IE Region T L. V Gossick, EDO H. R. Denton, NRR H. L. Ornstein, ED0 R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR N. M. Haller, MPA V. Stello, NRR (MAIL)
R. G. Ryan, OSP R. S. Boyd, URR J. J. Cummings, 0IA H. K. Shapar, ELD SS Bldg 2. : 3R R. Minogue, SD W. J. Dircks,flMSS PRELIMINARY NOTIFICATION g47 069
$910120/[/ g
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