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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20247P1971989-07-25025 July 1989
Ro:On 890725,fuel Element 141 Had Estimated U-235 Burnup to 18.9 G.Operator Instructed That in Addition to Quarterly Calculations Required by Tech Specs,Operator Will Make Projections to Insure That No Element Will Reach Limit
ML20154J4221988-05-12012 May 1988
Ro:On 880512,standby Power Sys Generator Failed.Repeated Starting & Stopping of Generator Performed W/O Difficulty. Generator Ran for Approx 2 H W/O Difficulty & W/Normal Characteristics
ML20093M9151984-09-27027 September 1984
Ro:On 840927,generator Stopped & Would Not Restart.Stiff Wire Attached to Coil Snapped Off Due to Vibration.Wire Replaced W/Soft Wire & Sys Operated Normally
ML20094S5891984-08-10010 August 1984
Ro:On 840810,telephone Lines Between Narragansett,Ri & Providence,Ri Failed,Preventing Transmission of Signals from Burglar Alarm & Supervisory Sys.Cause Unknown.Line Restored
ML20090H2681984-07-0909 July 1984
Ro:On 840705,motor Starter Timer in Cleanup Sys Air Blower Failed During Electrical Storm.Timer Believed Struck by Lightning.Replacement Timer Installed & Reactor Returned to Power on 840709
ML20090E3771984-06-28028 June 1984
Ro:On 840628,during Normal Operation,Standby Power Sys Shut Off & Would Not Restart.Caused by Wire Pulled Loose from Connection on Solenoid Valve.Connection Repaired & Generator Started Normally
ML20084C2981984-04-17017 April 1984
Ro:On 840416,failure Occurred on Long Distance Telephone Lines Which Carry Burglar Alarm & Police Call Signals from Science Ctr to Rhode Island Electric Protective Co. Phone Lines Restored
ML20083Q0121984-03-0101 March 1984
Ro:On 840229,long Distance Telephone Lines Transmitting Burglar Alarm,Power Failure,Fire & High Radiation Failed. Caused by Flooding of Phone Company Cables During Rain Storm.Message Relay Line Established
ML20078B8051983-09-0808 September 1983
Ro:On 830907,hood Exhaust Blower Stopped.Caused by Shorted Electrical Feed Wire.Repairs Initiated
ML20071H6921983-05-17017 May 1983
Ro:On 830516,seepage of Reactor Pool Water Discovered Below Thermal Column Case.Investigation Revealed Seepage from Horizontal Const Joint in Concrete Biological Shield. Procedures Initiated to Isolate Leak
ML20071G8001983-05-17017 May 1983
Ro:On 830516,seepage of Approx 160 cm3/h in Reactor Pool Water Discovered from Area Below Thermal Column Case.Leak Will Be Isolated to Determine Cause.Tech Specs Do Not Specify Pool Leak Rate
ML20054C2551982-04-16016 April 1982
Ro:On 820416,during Startup of Reactor,Period Circuits of Wide Range Log N Channel Failed So as to Provide No Period Info to Operator or Scram Circuits,Resulting in Shutdown of Reactor
1989-07-25
[Table view]
Category:TEXT-SAFETY REPORT
MONTHYEARML20211G9371999-08-16016 August 1999
Ri Nuclear Science Center Annual Rept for Period 980701 Through 990630,providing Reactor Operating Statistics,Info Re Inadvertent Reactor Shutdowns or Scrams,Maint Operations Performed & Changes in Facility
ML20199E8351997-11-12012 November 1997
Safety Evaluation Supporting Amend 25 to License R-95
ML20217E2991997-09-23023 September 1997
Safety Evaluation Supporting Amend 24 to License R-95
ML20141H6191997-07-23023 July 1997
Annual Rept for Jul 1996 - June 1997,consisting of Reactor Oeprating Statistics,Inadvertent Reactor Shutdowns or Scrams & Maint Operations Performed During Reporting Period
ML20236T9201997-07-17017 July 1997
Annual Rept for Jul 1997 - Jun 1998,consisting of Reactor Operating Statistics,Inadvertent Reactor Shutdowns or Scrams & Maint Operations Performed During Reporting Period
ML20140H7401997-06-17017 June 1997
Safety Evaluation Supporting Amend 23 to License R-95
ML20132E2541996-12-18018 December 1996
Safety Evaluation Supporting Amend 22 to License R-95
ML20086T3731995-07-27027 July 1995
First Annual Rept Required by Rev 1 to Ts,Providing Monthly Summary for Period 940701-950630,per TS 6.8.4.a,including Info on One Emergency Shutdown,Maint Operations & Descriptions of 10CFR50.59 Evaluations
ML20063K7951994-02-16016 February 1994
Preliminary Rept on Ri Nuclear Ctr Conversion from HEU to LEU Fuel
ML20126F4511992-12-31031 December 1992
Rev 1 to SAR for Low Enriched Fuel Conversion of Ri Nuclear Science Ctr Research Reactor
ML20099A6221992-07-23023 July 1992
Rev 1 to SAR for Low Enriched Fuel of Rhode Island Nuclear Science Ctr Research Reactor
ML20086D2141991-11-30030 November 1991
SAR for Low Enriched Fuel Conversion of Rhode Island Nuclear Science Ctr Research Reactor
ML20247P1971989-07-25025 July 1989
Ro:On 890725,fuel Element 141 Had Estimated U-235 Burnup to 18.9 G.Operator Instructed That in Addition to Quarterly Calculations Required by Tech Specs,Operator Will Make Projections to Insure That No Element Will Reach Limit
ML20205K6381988-10-20020 October 1988
Safety Evaluation Supporting Amend 16 to License R-95
ML20154J4221988-05-12012 May 1988
Ro:On 880512,standby Power Sys Generator Failed.Repeated Starting & Stopping of Generator Performed W/O Difficulty. Generator Ran for Approx 2 H W/O Difficulty & W/Normal Characteristics
ML20196H6351988-03-0808 March 1988
Headquarters Daily Rept for 880308
ML20245C9751987-10-27027 October 1987
Safety Evaluation Supporting Amend 15 to License R-95
ML20128D3141985-05-10010 May 1985
Safety Evaluation Supporting Amend 14 to License R-95
ML20093M9151984-09-27027 September 1984
Ro:On 840927,generator Stopped & Would Not Restart.Stiff Wire Attached to Coil Snapped Off Due to Vibration.Wire Replaced W/Soft Wire & Sys Operated Normally
ML20094S5891984-08-10010 August 1984
Ro:On 840810,telephone Lines Between Narragansett,Ri & Providence,Ri Failed,Preventing Transmission of Signals from Burglar Alarm & Supervisory Sys.Cause Unknown.Line Restored
ML20090H2681984-07-0909 July 1984
Ro:On 840705,motor Starter Timer in Cleanup Sys Air Blower Failed During Electrical Storm.Timer Believed Struck by Lightning.Replacement Timer Installed & Reactor Returned to Power on 840709
ML20090E3771984-06-28028 June 1984
Ro:On 840628,during Normal Operation,Standby Power Sys Shut Off & Would Not Restart.Caused by Wire Pulled Loose from Connection on Solenoid Valve.Connection Repaired & Generator Started Normally
ML20084C2981984-04-17017 April 1984
Ro:On 840416,failure Occurred on Long Distance Telephone Lines Which Carry Burglar Alarm & Police Call Signals from Science Ctr to Rhode Island Electric Protective Co. Phone Lines Restored
ML20083Q0121984-03-0101 March 1984
Ro:On 840229,long Distance Telephone Lines Transmitting Burglar Alarm,Power Failure,Fire & High Radiation Failed. Caused by Flooding of Phone Company Cables During Rain Storm.Message Relay Line Established
ML20078B8051983-09-0808 September 1983
Ro:On 830907,hood Exhaust Blower Stopped.Caused by Shorted Electrical Feed Wire.Repairs Initiated
ML20071G8001983-05-17017 May 1983
Ro:On 830516,seepage of Approx 160 cm3/h in Reactor Pool Water Discovered from Area Below Thermal Column Case.Leak Will Be Isolated to Determine Cause.Tech Specs Do Not Specify Pool Leak Rate
ML20071H6921983-05-17017 May 1983
Ro:On 830516,seepage of Reactor Pool Water Discovered Below Thermal Column Case.Investigation Revealed Seepage from Horizontal Const Joint in Concrete Biological Shield. Procedures Initiated to Isolate Leak
ML20072H5771983-03-10010 March 1983
Annual Rept of Changes,Tests & Experiments for Fy Ending 820630
ML20054C2551982-04-16016 April 1982
Ro:On 820416,during Startup of Reactor,Period Circuits of Wide Range Log N Channel Failed So as to Provide No Period Info to Operator or Scram Circuits,Resulting in Shutdown of Reactor
ML20041F1251982-03-0505 March 1982
Ro:On 820303,instrumentation Components That Monitor Primary Coolant Flow & Core Outlet Temp Would Not Provide Scram for Power Failure.Cause Not Given.Components Reworked to Provide Scram
ML20041E1991982-01-31031 January 1982
Operating Statistics,Jul 1980-June 1981.
ML19290B6931979-12-0303 December 1979
Ro:On 791121,decrease in Negative Differential Pressure Discovered Between Inside & Outside of Nuclear Science Ctr Bldg.Caused by Loose Fitting Gasket on Truck Door.Gasket Adjusted.Maint Schedule Will Be Implemented
ML19290B6841979-11-28028 November 1979
Ro:On 791127,pH of Secondary Water Sample Exceeded Tech Spec Limit.Caused by Failure to Initiate Automatic Blowdown of Secondary Water Sample.Importance of Procedure Stressed to Operators
ML19276H0531979-02-28028 February 1979
Ri Atomic Energy Commission Nuclear Science Ctr Operating Statistics for Jul 1977-June 1978
ML19269D5381978-02-16016 February 1978
LER 78-004/03L-0 on 780109:main Steam Line Low Pressure Switches Found to Actuate at Approx 35 Psig Below Tech Spec Requirements.Caused by Limited Setpoint Drift.Existing Surveillance Program Considered Adequate
1999-08-16
[Table view] |
Text
TATE OF RHODE ' ISLAND AND PROVIDENCE PLANTATIONS RHODE ISLAND ATOMIC ENERGY COMMISSION Nuclear Science Center South Ferry Road Narragansett, R. I. 02882 May 17, 1983 U. S. Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, Pa. 19406 Attention: Mr. W. Kinney License R-95, Docket 50-193 Gentlemen:
On Monday May 16, 1983, we discovered a seepage of reactor pool water from an area below the thermal column case. The water ap-pearc to be seeping from a horizontal construction joint in the concrete biological shield. A rough estimate of the volume is 160 cm3 /hr.
The mass of concrete in this section of the reactor pool wall /
shield contains- considerable embedded piping for coolant lines, anti-siphon lines, demineralizer line and chemical additive lines.
We are planning and carrying out procedures to attempt to isolate the leak.
The teclinical specifications for this reactor do not specify a pool leak rate. It is, therefore, not clear that this situation is re-portable.
Very truly yours,
)
l A. Francis DiMeglio )
Director.
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AFD:ag i cc: NRC, Washington !
8305250445 830517 ,ofl PDR ADOCK 05000193 s eon Vf I h
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