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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20154H5291998-10-0808 October 1998 Special Rept:On 980928,meteorological Monitoring Instrumentation Channel Inoperable for Period Greater than 7 Days.Caused by Vendor to Follow Std Industry Practice for Calibr of Instrumentation.Instruments Installed ML20129B8991996-10-17017 October 1996 Special Rept:On 960919-22,DG Failures Experienced.Causes Could Not Be Conclusively Determined Although Kepner Tregoe Problem Analysis Identified Several Possible Causes. Components Identified Possible Contributors Being Monitored ML20065N1171994-04-25025 April 1994 Special Rept:On 940125,unplanned Reactor Trip & ECCS Actuation & Injection Into RCS Occurred.Total Accumulated Actuation Cycles for Four High Head Injection Lines Is Three ML20064N2381994-03-25025 March 1994 Ro:On 940316,determined Recorder 1-SM-X-6706 Inoperable for Indeterminate Period of Time.Caused by Corroded Sensors. Damaged Sensors Replaced & Recorder Returned to Svc on 940317 ML20059D9891994-01-0303 January 1994 Special Rept:On 931201,02,16,18 & 29,diesel Generator Failures Occurred.Causes & Corrective Actions Listed ML20127H3161993-01-15015 January 1993 Special Rept:On 921216,discovered That Prior to Closing EDG Output Breaker,Dg Output Voltage Was Offscale High.Caused by Valid EDG Start Failure.Silicon Controlled Recifier Bank a Placed Into Svc & Bank B Will Be Repaired or Replaced ML20079K9011991-10-31031 October 1991 Suppl to 910925 Special Rept:On 910826,train a Emergency Diesel Generator Tripped During post-maint Testing.Caused by Reversed Wiring Leads in Power Relays.Design Change Issued, Rewiring Performed & Input Leads Corrected ML20085D8251991-10-11011 October 1991 Special Rept:On 910911,EDG 1B Shutdown Due to Excessive Vibration.On 910916,EDG 1B Shutdown Due to Oil Leak on Cylinder 8.On 910919,EDG 1B Shutdown Due to Loud Noises from Air Start Distributor.Distributor Shaft Reinstalled ML20083D5741991-09-25025 September 1991 Special Rept:On 910826,A Train EDG Tripped.Trip Actuated by Reverse Power Relay.Root Cause Analysis Will Be Completed by 911030.Design Change Issued & Implemented to Correct Wiring of Subj Relays & Schematic Drawings ML20083D2951991-09-24024 September 1991 Special Rept:On 910825,Train a Emergency Diesel Generator Tripped on Low Lube Oil Pressure During post-maint Testing. Caused by Large Fluctuations in Engine Revolutions Per Minute.Procedures Re Auxiliary Lube Oil Pump Revised ML20247R5721989-09-25025 September 1989 Ro:On 890902,radiation Monitor Inoperable for Period Exceeding 7 Days.Caused by Installation of Nonfuse Dependent Isolation Devices in Communication Loops of Radiation Data Mgt Sys & Need for Relocation of Monitor Due to New Design ML20245G7151989-04-17017 April 1989 Ro:On 890316,train a Emergency Diesel Generator Tripped on Low Oil Pressure During Initial Startup.Caused by Engine Lube Oil Monitoring Circuit Becoming Active Before Engine Speed Developed Sufficient Lube Oil Pressure ML20154F3231988-09-0909 September 1988 Special Rept:On 880811,fuel Oil Leak Required Engine Shutdown & on 880812,Train B Emergency Diesel Generator Tripped.Caused by Incorrect Setting of Water Jacket Temp Controller.Adjustment Knob Protected from Misadjustment ML20207C3181988-07-22022 July 1988 Special Rept:On 880224,low Lube Oil Pressure Trip Occurred. Caused by 8-wk Maint Outage Resulting in Slower than Normal Engine Acceleration During Engine Start.Development of Design Change to Relocate Coolant Pressure Switch Underway ML20238E4601986-08-28028 August 1986 Partially Withheld Secrity Event Rept:On 860824,bomb Threat Received for Plants.Bomb Search Initiated.No Suspicious Objects Found 1998-10-08
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20217H2841999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Seabrook Station. with ML20212D1461999-09-17017 September 1999 SER Accepting Request to Use Proposed Alternative to Certain Weld Repair Requirements in ASME Boiling & Pressure Vessel Code ML20216F5141999-08-31031 August 1999 Rept on Status of Public Petitions Under 10CFR2.206 ML20212B8671999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Seabrook Station. with ML20210Q7581999-08-11011 August 1999 SER Approving Proposed Merger of CES & Bec,Which Will Create New Parent Company of Canal ML20210R9781999-08-0606 August 1999 ISI Exam Rept of Seabrook Station, for RFO 6,period 3 ML20210J8681999-08-0303 August 1999 SER Approving License Transfer from Montaup Electric Co to Little Bay Power Corp & Approval of Conforming Amend for Seabrook Station Unit 1 ML20210R6001999-07-31031 July 1999 Monthly Operating Rept for July 1999 for Seabrook Station, Unit 1.With ML20210H1151999-06-30030 June 1999 Naesc Semi-Annual Fitness-for-Duty Rept for 990101-0630 ML20209H1371999-06-30030 June 1999 Monthly Operating Rept for June 1999 for Seabrook Station, Unit 1.With ML20195G5391999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Seabrook Station, Unit 1.With ML20195C0491999-05-25025 May 1999 Offshore Intake Seal Deterrent Barrier Design ML20206E4761999-04-30030 April 1999 LER 99-S01-00:on 990408,contractor Employee Was Granted Temporary Unescorted Access to Seabrook Station Protected Area.Caused by Failure of Contractor Employee to Provide Accurate Info.Individual Access Revoked.With ML20206N1751999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for Seabrook Station, Unit 1.With ML20196L2081999-04-19019 April 1999 Rev 01-07-00 to RE-21, Cycle 7 Colr ML20205K5441999-03-31031 March 1999 Decommissioning Update ML20205L8141999-03-31031 March 1999 Monthly Operating Rept for Mar 1999 for Seabrook Station. with ML20205C1981999-03-24024 March 1999 Safety Evaluation Concluding That Proposed Relief Request IR-8,Rev 1,provides Acceptable Alternative to ASME Code Requirements.Recommends Authorization of Proposed Alternative Pursuant to 10CFR50.55a(a)(3)(i) ML20207F4941999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Seabrook Station. with ML20199E6731998-12-31031 December 1998 Monthly Operating Rept for Dec 1998 for Seabrook Station, Unit 1.With ML20198P1831998-12-31031 December 1998 LER 98-S01-00:on 981214,incomplete pre-employment Screening Records Was Noted.Caused by Failure of Contractor Employee to Provide Accurate Info.Subject Contractor Employees Employment Was Terminated.With ML20202E8241998-12-31031 December 1998 Naesc Semi-Annual Fitness-for-Duty Rept for 980701-981231 ML20196F5741998-12-0202 December 1998 Safety Evaluation Concluding That Licensee Has Established Acceptable Program to Verify Periodically design-basis Capability of safety-related MOVs at Seabrook ML20198B8661998-11-30030 November 1998 Monthly Operating Rept for Nov 1998 for Seabrook Station, Unit 1.With ML20195D0311998-10-31031 October 1998 Monthly Operating Rept for Oct 1998 for Seabrook Station, Unit 1.With ML20154H5291998-10-0808 October 1998 Special Rept:On 980928,meteorological Monitoring Instrumentation Channel Inoperable for Period Greater than 7 Days.Caused by Vendor to Follow Std Industry Practice for Calibr of Instrumentation.Instruments Installed ML20154M8421998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Seabrook Generating Station,Unit 1.With ML20151V5951998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Seabrook Station, Unit 1.With ML20237B4501998-07-31031 July 1998 Monthly Operating Rept for July 1998 for Seabrook Station ML20236R1781998-06-30030 June 1998 Naesc Semi-Annual Fitness-for-Duty Rept for 980101-0630 ML20236M3591998-06-30030 June 1998 Monthly Operating Rept for June 1998 for Seabrook Station, Unit 1 ML20237A4871998-06-0303 June 1998 North Atlantic Seabrook Station 1998 Exercise on 980603 ML20248M2951998-05-31031 May 1998 Monthly Operating Rept for May 1998 for Seabrook Station, Unit 1 ML20247G2641998-04-30030 April 1998 Monthly Operating Rept for Apr 1998 for Seabrook Station ML20247H3171998-04-27027 April 1998 Rev 1 to Seabrook Station SGs B & C Isi,May/June 1997 ML20216F8891998-03-31031 March 1998 Monthly Operating Rept for Mar 1998 for Seabrook Station 05000443/LER-1998-002, Re Potential Safety Injection Pump Runout Conditions Identified on 980113.LER 98-002-00 Retracted1998-03-20020 March 1998 Re Potential Safety Injection Pump Runout Conditions Identified on 980113.LER 98-002-00 Retracted ML20216H9211998-03-13013 March 1998 Fitness for Duty Program Performance Data Personnel Subject to 10CFR26 ML20248L2811998-02-28028 February 1998 Monthly Operating Rept for Feb 1998 for Seabrook Station, Unit 1 ML20197A7531998-02-27027 February 1998 Safety Evaluation Accepting License Request for Relief from ASME Code,Section IX Requirements Re Inservice Insp of RHR Heat Exchanger Nozzle Welds & Reactor Vessel Closure Head Nuts ML20202G3701998-01-31031 January 1998 Monthly Operating Rept for Jan 1998 for Seabrook Station ML20198G0271997-12-31031 December 1997 Commonwealth Energy Sys 1997 Annual Rept ML20248L7711997-12-31031 December 1997 Western Massachusetts Electric 1997 Annual Rept. Supporting Info,Encl ML20198G1021997-12-31031 December 1997 Baycorp Holdings 1997 Annual Rept ML20198N7021997-12-31031 December 1997 Monthly Operating Rept for Dec 1997 for Seabrook Station, Unit 1 ML20198G0351997-12-31031 December 1997 Eastern Edison Co 1997 Annual Rept ML20198G0681997-12-31031 December 1997 Taunton Municipal Lighting Plant 1997 Annual Rept ML20248L7671997-12-31031 December 1997 North Atlantic 1997 Annual Rept ML20198F9511997-12-31031 December 1997 United Illuminating Co 1997 Annual Rept ML20236M9561997-12-31031 December 1997 Amended Public Service of New Hampshire 1997 Annual Rept 1999-09-30
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Nordi North Atlantic Energy Service Corporation a0.0 300 J $s Adantic Seahmok, NH 03874 (603) 474 9 Fat, Fnx (603) 474 2987 The Northeaat Utilities System Ted C. Feigenbaurn NYN- 94048 Senmr Vice President 8.
Chief Nuclear Officer April 25,1994 Unuct atates Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Document Control Desk 1(elerences: (a) Facility Operating License NPF-86, Docket No. 50-443 (b) North Atlantic Letter NYN-94019, dated February 24,1994, " Licensee Event Report No. 94-01-00: Reactor Trip and Safety Injection Due to inadvertent MSIV Closure", T. C. Feigenbaum to NRC (c) North Atlantic 1.etter NYN-94029, dated March 25,1994, " Licensee Event Report .
No. 94-01-01: Ikactor Trip and Safety Injection Due to Inadvertent MSIV Closure", T. C. Feigenbaum to NRC
Subject:
Special Report, ECCS Actuation and injection into RCS Gentlemen:
Seabrook Station experienced an unplanned reactor trip and Emergency Core, Cooling System (ECCS) actuation and injection into the Reactor Coolant System on January 25,1994. North Atlantic Energy Service Corporation (North Atlantic) submitted Licensee Event Report 94-01 on February 24, 1994, [ Reference (b)] describing the circumstanos of this event. A supplement to LER 94-01 was submitted on March 25,1994 [ Reference (c)). The injection of water into the RCS was via the Refueling Water Storage Tank to the centrifugal charging pumps into the four high head charging lines which enter the four RCS cold legs.
North Atlantic hereby reports pursuam to Technical Specification 3/4.5.2, ACT10N b., that the total accumulated actuation cycles for the four high head injection lines is three. This total includes the January 25,1994 event and two occasions during preoperational testing in November 1985.
Should you hase any questions regarding this letter, please contact Mr. James M. Peschel, - i Regulatory Compliance Manager, at (603) 474-9521 extension 3772.
Very truly yours, ,
led C. Fe.igenbaum g
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United Stat 6 Nuclear Regulatory Commission April 25,1994 Attention: Document Control Desk Page two cc: Mr. Thomas T. Martin Regional Administrator United States Nuclear Regt.latory Commission !
Region i 475 Allendale Road l King of Prussia, PA 19406 Mr. Albert W. De Agazio, Sr. Project Manager Project Directorate I-4 Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555 t
l- Mr. Antone C. Cerne l NRC Senior Resident inspector l P.O. Box i149 Seabrook, Nil 03874 l
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