RO 79-031/01X-0:on 790816,not That Auxiliary Emergency Bus Breakers May Not Open Automatically During Seismic Event. Caused by Design Error.Existing Spare Undervoltage Relays Will Be Used. Control Room Operators Reinstructed| ML20136C394 |
| Person / Time |
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| Site: |
Pilgrim |
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| Issue date: |
08/16/1979 |
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| From: |
Mathis C
BOSTON EDISON CO. |
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| To: |
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| References |
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| NUDOCS 7909210448 |
| Download: ML20136C394 (1) |
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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARBECO-LTR-92-069, Special Rept:On 920601,fire Water Supply Sys Diesel Fire Pump Declared Inoperable for Maint.Caused by Failure of Manifold.Replacement Manifold Repaired & Pump Declared Operable on 9206161992-06-30030 June 1992
Special Rept:On 920601,fire Water Supply Sys Diesel Fire Pump Declared Inoperable for Maint.Caused by Failure of Manifold.Replacement Manifold Repaired & Pump Declared Operable on 920616
BECO-92-002, Special Rept:On 911214,electric Fire Pump Declared Operable. Caused by Electrical Fault in Motor Controller.Temporary Mod Continued to Keep Electric Fire Pump Available Until New Motor Controller Procured1992-01-13013 January 1992
Special Rept:On 911214,electric Fire Pump Declared Operable. Caused by Electrical Fault in Motor Controller.Temporary Mod Continued to Keep Electric Fire Pump Available Until New Motor Controller Procured
BECO-90-138, Ro:On 900902,Anchor/Darling RCIC Safety Injection Check Valve Did Not Close Completely Following Startup Attempt. Caused by Loose Shaft Key.Key Modified to Provide More Clearance from Hinge Arm & Drawing Revised1990-11-14014 November 1990
Ro:On 900902,Anchor/Darling RCIC Safety Injection Check Valve Did Not Close Completely Following Startup Attempt. Caused by Loose Shaft Key.Key Modified to Provide More Clearance from Hinge Arm & Drawing Revised
BECO-90-107, Special Rept:On 900803,fire Suppression Sys Diesel Fire Pump Declared Inoperable & Could Not Be Returned to Operable Status within 7 Days.Pump Repaired & Passed Surveillance Test on 9008131990-09-0606 September 1990
Special Rept:On 900803,fire Suppression Sys Diesel Fire Pump Declared Inoperable & Could Not Be Returned to Operable Status within 7 Days.Pump Repaired & Passed Surveillance Test on 900813
BECO-90-079, Special Rept:On 900527,alarm Function of Turbine Basement Wet Pipe Sprinkler Sys Declared Inoperable for More than 14 Days.Caused by Removal of Sys Alarm Card for C-7R on Window A-1.Alarm Valve Repaired & Sys Declared Operable on 9006231990-07-0202 July 1990
Special Rept:On 900527,alarm Function of Turbine Basement Wet Pipe Sprinkler Sys Declared Inoperable for More than 14 Days.Caused by Removal of Sys Alarm Card for C-7R on Window A-1.Alarm Valve Repaired & Sys Declared Operable on 900623
BECO-89-147, Special Rept:On 890826,fire Suppression Sys Diesel Fire Pump Declared Inoperable & Could Not Be Returned to Operable Status within 7 Days.New Battery Bank Procured & Currently Undergoing Discharge Testing Prior to Installation1989-09-29029 September 1989
Special Rept:On 890826,fire Suppression Sys Diesel Fire Pump Declared Inoperable & Could Not Be Returned to Operable Status within 7 Days.New Battery Bank Procured & Currently Undergoing Discharge Testing Prior to Installation
ML20195G5111988-11-15015 November 1988
Special Rept:On 881017,fire Suppression Sys Electric Fire Pump Declared Inoperable.Pump Could Not Be Returned to Operable Status within 7 Days.Cause Under Investigation. Replacement Motor Installed & Pump Declared Operable
ML20236E9381987-10-26026 October 1987
Special Rept:On 870917,fire Suppression Sys Electric Fire Pump Became Inoperable.Caused by Failure of Motor Windings & Moisture in Internals.Electric Fire Pump Motor Repaired & Returned to Operable Status on 871008
BECO-86-173, Partially Withheld Security Event Rept:On 861107,HVAC Duct, Penetrating Vital Area,Removed by Contracted Craft Workers Before Notifying Security.Cause Not Stated.Security Oversight of Subj Contract Work Intensified1986-11-12012 November 1986
Partially Withheld Security Event Rept:On 861107,HVAC Duct, Penetrating Vital Area,Removed by Contracted Craft Workers Before Notifying Security.Cause Not Stated.Security Oversight of Subj Contract Work Intensified
BECO-86-171, Partially Withheld Security Event Rept:On 861106,temporary Vital Area Barrier Insp Found Barrier Could Be Breached. Barrier Modified & Compensatory Security Measures Released1986-11-10010 November 1986
Partially Withheld Security Event Rept:On 861106,temporary Vital Area Barrier Insp Found Barrier Could Be Breached. Barrier Modified & Compensatory Security Measures Released
BECO-86-125, Partially Withheld Security Event Rept:On 860826,bomb Threat Received.Search Initiated.No Suspicious Objects Found1986-08-29029 August 1986
Partially Withheld Security Event Rept:On 860826,bomb Threat Received.Search Initiated.No Suspicious Objects Found
ML20238E4601986-08-28028 August 1986
Partially Withheld Secrity Event Rept:On 860824,bomb Threat Received for Plants.Bomb Search Initiated.No Suspicious Objects Found
ML20238E4591986-06-17017 June 1986
Partially Withheld Security Event Rept:On 860612,withheld Discovery Made Re 860604 Moderate Loss of Security Effectiveness.Caused by Inadequate Post Orders & Training for Assignment.Assignments Will Be Specifically Addressed
BECO-86-016, Partially Withheld Security Event Rept:On 860215 Security Officer Appeared to Be Asleep at Post at Vital Area Penetration.Unathorized Entry of Vital Area Did Not Occurr. Security Officer Relieved of Duty & Suspended1986-02-20020 February 1986
Partially Withheld Security Event Rept:On 860215 Security Officer Appeared to Be Asleep at Post at Vital Area Penetration.Unathorized Entry of Vital Area Did Not Occurr. Security Officer Relieved of Duty & Suspended
BECO-85-220, Partially Withheld Security Event Rept:On 851204 Vertical Pipe Chase Not Locked.Lock Removed When Surveys Indicated Radiation Level Below Requirement for Locked High Radiation Level.Pipe Chase Will Be Secured1985-12-0909 December 1985
Partially Withheld Security Event Rept:On 851204 Vertical Pipe Chase Not Locked.Lock Removed When Surveys Indicated Radiation Level Below Requirement for Locked High Radiation Level.Pipe Chase Will Be Secured
ML20138M1531985-10-17017 October 1985
Ro:On 850927,employee Observed That Fuel Grapple on Refuel Floor Latched to Spent Fuel Bundle & Trolley Moved,Damaging Mast.Caused by Operator error.Two-man Rule Imposed Until Investigation Complete.Mast Will Be Repaired
ML20128K9831985-07-0505 July 1985
Special Rept:On 840208,sprinkler Sys in Emergency Diesel Generator Day Tank Area Declared Inoperable When Once/Cycle Surveillance Test Failed.Caused by Inadequate Design of Sprinkler Sys Initiation Logic.Logic Modified
BECO-LTR-84-113, Special Rept:On 840628,during Refueling Outage,Electric Fire Pump Failed While Conducting Yearly 0-150% Capacity Test. Caused by Shorting within Motor.Motor Rewound.Fire Pump Not Returned to Operable Status within Required 7-day Peri1984-07-26026 July 1984
Special Rept:On 840628,during Refueling Outage,Electric Fire Pump Failed While Conducting Yearly 0-150% Capacity Test. Caused by Shorting within Motor.Motor Rewound.Fire Pump Not Returned to Operable Status within Required 7-day Period
BECO-84-108, Updated Special Rept:On 820118,carbon Dioxide Fire Suppression Sys in Cable Spreading Room Determined Inoperable.Carbon Dioxide Sys Main Shutoff Valve Closed & Tagged,Allowing Either Automatic or Manual Operation1984-07-16016 July 1984
Updated Special Rept:On 820118,carbon Dioxide Fire Suppression Sys in Cable Spreading Room Determined Inoperable.Carbon Dioxide Sys Main Shutoff Valve Closed & Tagged,Allowing Either Automatic or Manual Operation
ML20062J7421980-10-31031 October 1980
RO 80-078/01X-0:on 801030,analysis of Salt Svc Water Sys Conducted in Response to IE Bulletin 79-14 Indicated Design Deficiency.Caused by Installation of Anchor Point Outside Tornado Missile Barrier.Relocation Planned
ML20136C3941979-08-16016 August 1979
RO 79-031/01X-0:on 790816,not That Auxiliary Emergency Bus Breakers May Not Open Automatically During Seismic Event. Caused by Design Error.Existing Spare Undervoltage Relays Will Be Used. Control Room Operators Reinstructed
ML20136B6441979-08-0909 August 1979
RO 79-029/01X-0:on 790612,degradation of Primary Containment Integrity Occurred in Violation of Tech Specs 3.7.A.2.While Investigating,Disc in 6-inch Check Valve Was Removed, Violating Containment Integrity.Rept to Follow
ML20085G9661973-12-22022 December 1973
RO 50-293/73-21:on 731203,HPCI Inverter Failed.Caused by Increasing Dc Battery Sys a Voltage to 140 Volts.Station Personnel Advised Against Increasing Voltage Above 135 Volts & Caution Tags Placed on Battery Chargers
ML20206K7091972-11-0202 November 1972
Unusual Occurrence UO-72-6:on 720924 & 29,out-of-svc Condition of Primary Sys Boundary Coolant Leakage Air Sampling Sys Occurred.Caused by Moisture Accumulating in Detection Equipment.Mod to Equipment Designed
1992-06-30
[Table view]
Category:TEXT-SAFETY REPORT
MONTHYEARML20217E3021999-09-30030 September 1999
Monthly Operating Rept for Sept 1999 for Pilgrim Nuclear Station.With
ML20212C2921999-09-16016 September 1999
SER Accepting Licensee Request for Relief from ASME Code Section XI Requirements as Endorsed by 10CFR50.55a for Containment Insp for Pilgrim Nuclear Power Station
ML20216F3511999-09-0808 September 1999
ISI Summary Rept for Refuel Outage 12 at Pnps
ML20216E6881999-08-31031 August 1999
Monthly Operating Rept for Aug 1999 for Pilgrim Nuclear Power Station.With
ML20210R3401999-07-31031 July 1999
Monthly Operating Rept for July 1999 for Pilgrim Nuclear Power Station.With
ML20209C4731999-07-0707 July 1999
Addendum to SE on Proposed Transfer of Operating License & Matls License from Boston Edison Co to Entergy Nuclear Generation Co
ML20209H8251999-07-0101 July 1999
Provides Commission with Evaluation of & Recommendations for Improvement in Processes Used in Staff Review & Approval of Applications for Transfer of Operating Licenses of TMI-1 & Pilgrim Station
ML20209E6191999-06-30030 June 1999
Monthly Operating Rept for June 1999 for Pilgrim Nuclear Power Station.With
ML20196H2451999-06-29029 June 1999
SER Denying Licensee Proposed Alternative in Relief Request PRR-13,rev 2.Staff Determined That Proposed Alternative Provides Insufficient Info to Determine Adequacy of Scope of Implementation
ML20209A8901999-06-28028 June 1999
SER Accepting Licensee Proposed Alternative to Use Code Case N-573 for Remainder of 10-year Interval Pursuant to 10CFR50.55a(a)(3)(i)
ML20209B9861999-06-23023 June 1999
Rev 13A to Pilgrim Nuclear Power Station COLR for Cycle 13
ML20217N9061999-06-21021 June 1999
Rept of Changes,Tests & Experiments for Period of 970422-990621
ML20195K3431999-06-15015 June 1999
Safety Evaluation Granting Licensee Request to Use Guidance of GL 90-05 to Repair Flaws in ASME Class 3 Salt Svc Water System Piping for Plant
ML20195G8231999-05-31031 May 1999
Monthly Operating Rept for May 1999 for Pnps.With
ML20207E7471999-05-27027 May 1999
Safety Evaluation Granting Request Re Reduction of IGSCC Insp of Category D Welds Due to Implementation of HWC to License DPR-35
ML20206M1971999-05-11011 May 1999
SER Accepting Request for Approval to Repair Flaws in ASME Code Class 3 Salt Svc Water Piping at Plant
ML20206J6611999-04-30030 April 1999
Monthly Operating Rept for Apr 1999 for Pilgrim Nuclear Power Station.With
ML20205L0221999-03-31031 March 1999
Monthly Operating Rept for Mar 1999 for Pilgrim Nuclear Power Station.With
ML20207J5471999-03-0909 March 1999
Training Simulator,1999 4-Yr Certification Rept
ML20207F9401999-03-0101 March 1999
Long Term Program Semi-Annual Rept for Pilgrim Nuclear Power Station
ML20207H5451999-02-28028 February 1999
Monthly Operating Rept for Feb 1999 for Pilgrim Nuclear Power Station.With
ML20196E2151998-12-31031 December 1998
1998 Annual Rept for Boston Edison & Securities & Exchange Commission Form 10-K Rept.With
ML20206Q2741998-12-31031 December 1998
Monthly Operating Rept for Dec 1998 for Pilgrim Nuclear Power Station.With
ML20197J3591998-11-30030 November 1998
Monthly Operating Rept for Nov 1998 for Pilgrim Nuclear Power Station.With
ML20195C9951998-10-31031 October 1998
Monthly Operating Rept for Oct 1998 for Pilgrim Nuclear Power Station.With
ML20154K0721998-09-30030 September 1998
Monthly Operating Rept for Sept 1998 for Pilgrim Nuclear Power Station.With
ML20153D3901998-09-22022 September 1998
Safety Evaluation Granting 970707 Request to Use Guidance in GL 90-05 to Repair Flaws in ASME Class 3 Salt Svc Water Sys Piping for Pilgrim Nuclear Power Station
ML20197C5011998-09-0404 September 1998
Rev 12C,Pages 4 & 5 to Pilgrim Nuclear Power Station Colr
ML20197C5471998-08-31031 August 1998
Rev 12C to Pilgrim Nuclear Power Station Colr
ML20151W8231998-08-31031 August 1998
Monthly Operating Rept for Aug 1998 for Pilgrim Nuclear Power Station.With
ML20237E2251998-08-26026 August 1998
Suppl & Revs to SE for Amend 173 for Pigrim Nuclear Power Station
ML20237A9941998-07-31031 July 1998
Monthly Operating Rept for Pilgrim Nuclear Power Station
ML20236U8201998-07-13013 July 1998
Rev 12B to Pilgrim Nuclear Power Station COLR (Cycle 12)
ML20236P0151998-06-30030 June 1998
Monthly Operating Rept for June 1998 for Pilgrim Nuclear Power Station
ML20249A3741998-05-31031 May 1998
Monthly Operating Rept for May 1998 for Pilgrim Nuclear Power Station.W/Undated Ltr
ML20247H2081998-04-30030 April 1998
Monthly Operating Rept for Apr 1998 for Pilgrim Nuclear Power Station
ML20207B7601998-03-31031 March 1998
Final Rept, Pilgrim Nuclear Power Station Site-Specific Offsite Radiological Emergency Preparedenss Prompt Alert & Notification System Quality Assurance Verification, Prepared for FEMA
ML20216G3911998-03-31031 March 1998
Monthly Operating Rept for Mar 1998 for Pilgrim Nuclear Power Station
ML20216J3741998-03-19019 March 1998
Safety Evaluation Accepting Licensee Request to Evaluate Elevated Tailpipe Temp on Safety Relief Valve SRV 203-3B
ML20248L2241998-02-28028 February 1998
Monthly Operating Rept for Feb 1998 for Pilgrim Nuclear Station
ML20202G5251998-01-31031 January 1998
Monthly Operating Rept for Jan 1998 for Pilgrim Nuclear Power Station
ML20236M8511997-12-31031 December 1997
1997 Annual Rept for Boston Edison & Securities & Exchange Commission Form 10-K Rept
ML20198L7701997-12-31031 December 1997
Monthly Operating Rept for Dec 1997 for Pilgrim Nuclear Power Station
ML20203D6101997-11-30030 November 1997
Monthly Operating Rept for Nov 1997 for Pilgrim Nuclear Power Station
ML20202D5761997-11-0808 November 1997
1997 Evaluated Exercise
BECO-LTR-97-111, Monthly Operating Rept for Oct 1997 for Pilgrim Nuclear Power Station1997-10-31031 October 1997
Monthly Operating Rept for Oct 1997 for Pilgrim Nuclear Power Station
ML20217D6431997-10-0101 October 1997
Safety Evaluation Granting Request for Approval to Repair Flaws in Accordance W/Gl 90-05 for ASME Class 3 SSW Piping for Pilgrim
ML20217H5621997-09-30030 September 1997
Monthly Operating Rept for Sept 1997 for Pilgrim Nuclear Power Station
ML20216J4131997-08-31031 August 1997
Monthly Operating Rept for Aug 1997 for Pilgrim Nuclear Power Station
ML20210J3321997-07-31031 July 1997
Monthly Operating Rept for Jul 1997 for Pilgrim Nuclear Power Station
1999-09-08
[Table view] |
Text
-.
./ !
/ /d i BOSTON EDISON co' frat.*y TEL*' COPY lir.SSAGE Date/ Time 83/16/79 / -.
1000 Talephone Number .
Di rac t o r. Region I Prose: Pilgrim Nuclear Power st a r f.in Cffice of Inspectior. sud Enforcement RfD #1 Aocky litit Read U. 5. Nuclear Regselatory Co:re.iss ion Plymniith, MA 02360 631 Park Avenue King of Prussia, PA 19406
. s :: PRO""PT REPORT.tM E OCCt!NCE j
Docket Number 50-293; Lice =w DvF.-.35 Assigned LER Kardner 79-03I/034-0 Buring investigation of 1. th en t in g ac t ivit y problema maaocInted with f.ver/C Descript ton: che o ta t it.n 34 SKV arv i e cliva a 4 Ie we= 4f= covered that durinu a seiso1e
~. ~~ -- .. _;_ - - . . , _ . ,_ _ _ _
eycat (with or without LOCA) the unit aie n t l iary brenW> ras to the erw.r ge.nc y husior. any no t e n automat'1cally Tev6 E 'the no rtaal 't r ippi6d TUsirir To iir.T T.E=m trJ T l y qu.Ti t rtti t.mtv - i wedld result in loan 'of powelr to the emergoney busca he ra u sse tbc dieael venwrator b rea ke rr.
~~~
- dcWid no t close. ~ ~ ~ ~ ~ ~ ' ' -
fautt end Corrective Act.3on*g The cause of this event 's el.*
- 19.ve . In that the aux. t r .l p relay f,Asciated with the trip loalc for eenit auxillary Vr'ankirai wor 7 iitIt ' spec t TTed ' Gi he ~ ~ ~
j e s Cgi c,a_I ly,quA li f ie d . A l'DCR i si he i n g_ gene ra t eil tn ist I I I:re axlaieing apare mot mical.Jy jue11fied under voltay.e relaya to t r t;* the innf t sina G i a r v 'li~r'6.iid.W'.~ ~Thiin TTi iiGW U ITr"b***
- c onpj e t ed by Augus t 31, l'879 Control Huom stperatorn hovo been i na t r uc c eel to trip the uva c auxiliary brnaker'i vi thin 16 Tecf.~upnn 'TJ,iiv' *6' neerivel power .
~. . . . . . . . . . _ _ . _ _ . _ _
bit.iLity Statasa: IM FoutJne Srnrcup % ...._I Ther-n1 HV p, ) s hos.Ini.n stoutine ShutdoE h) Hetucttog ~
~~
Stendy State X____
- 1) nthir f,3cd Changitig _ j) Plat Applieng.tc fiadten follow-up r e po r t. will be ment within t.uo vecka, foornon notified; "I'* "* "# C" I'"
Prepa re.1 *iy_ " ' ' ' ' ' ' "h'"
e (2) copics to:
De e ee tor
- Offen of Managenent InfornacInn and Prop,rnn conernt
. U. E . t:ocica r negu la t.ory Core.mir.nion
$A 3 41nr, t o n . D.C. 20555 7000210 ,
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