ML20043A479
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| ML20043A479 | |
| Person / Time | |
|---|---|
| Site: | National Bureau of Standards Reactor |
| Issue date: | 05/15/1990 |
| From: | Rowe M NATIONAL INSTITUTE OF STANDARDS & TECHNOLOGY (FORMERL |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9005220119 | |
| Download: ML20043A479 (2) | |
Similar Documents at National Bureau of Standards Reactor | |
|---|---|
Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO
MONTHYEARML20043A4791990-05-15015 May 1990
[Table view]Ro:On 900505,leak Discovered in Cooling Water Basin Steam Lines.Caused by Increasing Tritium Levels in Hx.Permanent Plug Installed in Steam Line ML20009H0111981-07-28028 July 1981 Ro:On 810717,no Deuterium Oxide Level Indication Discovered. Caused by Substance Draining Into Storage Tank Due to Failure of Valve DWV-39 to Close.Revised Procedures Instituted to Upgrade Insp Requirements 1990-05-15 Category:LER) MONTHYEARML20043A4791990-05-15015 May 1990
[Table view]Ro:On 900505,leak Discovered in Cooling Water Basin Steam Lines.Caused by Increasing Tritium Levels in Hx.Permanent Plug Installed in Steam Line ML20009H0111981-07-28028 July 1981 Ro:On 810717,no Deuterium Oxide Level Indication Discovered. Caused by Substance Draining Into Storage Tank Due to Failure of Valve DWV-39 to Close.Revised Procedures Instituted to Upgrade Insp Requirements 1990-05-15 Category:TEXT-SAFETY REPORT MONTHYEARML20205B0511998-12-31031 December 1998
[Table view]Operations Rept 51 for Jan-Dec 1998. with ML20217H4481997-12-31031 December 1997 Operations Rept 50 for Jan-Dec 1997 ML20147H3871997-03-31031 March 1997 Safety Evaluation Supporting Amend 8 to License TR-5 ML20137F2891996-12-31031 December 1996 Operations Rept 49 for Jan-Dec 1996 ML20101K9901995-12-31031 December 1995 Operations Rept 48,for 1995 ML20082B0421994-12-31031 December 1994 NIST Reactor Operations Rept 47 for Jan-Dec 1994 ML20064L2101993-12-31031 December 1993 NIST Reactor (Nbsr) Operations Rept 46 Jan-Dec 1993. W/ ML20057C4221993-09-22022 September 1993 Ro:On 930910,noticed Fluctuations on Power Channels Due to Element 574 in Position J-7 Becoming Unlatched for Listed Reasons.Subj Element Replaced.Special Instructions Will Be Provided to Operators on Fuel Handling & Monitoring ML20114D7111992-09-0202 September 1992 Ro:On 920824,several Annunicators Re Reactor in Manual, Servo Deviation Greater than 10% & Clutch Power Off Received.Caused by Shim 3 Slipping & Clutch Current on Low Alarm.Potentiometer Wiped Clean & Current Adjusted ML20094P1721991-12-31031 December 1991 Natl Inst of Stds & Technology Reactor Operations Rept, 1991 ML20070T4301990-12-31031 December 1990 Operations Rept 43 for Natl Inst of Stds & Technology Reactor for 900101-1231 ML20059M1491990-09-25025 September 1990 Special Rept,On 900918:shim 1 Relay Failed to Release Completely Upon Manual Scram.Caused by mercury-wetted- Contact Relay in Manual Scram Circuit of Shim.Relay Replaced & Relays in Sys Checked & Found to Operate Normally ML20043A4791990-05-15015 May 1990 Ro:On 900505,leak Discovered in Cooling Water Basin Steam Lines.Caused by Increasing Tritium Levels in Hx.Permanent Plug Installed in Steam Line ML20248J1901988-12-31031 December 1988 Operations Rept 41 for 1988 ML20195B3931988-06-10010 June 1988 Safety Evaluation Supporting Amend 6 to License TR-5 ML20151U3541987-12-31031 December 1987 Corrected Operations Rept 40,1987 ML20148N6081987-12-31031 December 1987 Operations Rept 40,Jan-Dec 1987 ML20235M4711987-09-23023 September 1987 Ro:On 870911,while Performing Shim Arm Calibr Tests at Low Power,Shim 1 Would Not Drive Out But Would Drive In.Caused by Worn Thrust Bearings on Drive.Drive Reinstalled & Tested Satisfactorily ML20237J2201987-02-28028 February 1987 Penetrations in Reactor Bldg for New Hot Plug Storage,Hx Vault & Neutron Beam Tubes, Study Rept ML20206D7691986-12-31031 December 1986 Operations Rept 39,1986 ML20202D3001985-12-31031 December 1985 Operations Rept 38,1985 ML20116H5891984-12-31031 December 1984 Operations Rept 37,1984 ML20098G3611984-08-31031 August 1984 SAR on D2O Cold Neutron Source for Nbs Reactor ML20087N6121984-03-29029 March 1984 Ro:On 840319,following Shim Arm Calibr Test,Shift Arm 1 Did Not Fall.Cause Unknown.New Ball Nut & Screw Assembly Installed ML20087N5901983-12-31031 December 1983 Semiannual Operating Rept 36,Jul-Dec 1983 ML20080K4781983-09-0808 September 1983 Operations Rept,Jan-June 1983 ML20072L3421983-03-18018 March 1983 Operations Rept 34,Jul-Dec 1982 ML20067D9391982-12-0606 December 1982 Ro:On 821126,during Routine Refueling Operations,Fuel Element 345 Fell to Upper Grid in Transfer from Core Position D-1 to D-7.Caused by Operating Difficulty in E-2 Transfer Arm.Element Removed & Seated ML20063P1801982-09-30030 September 1982 Operations Rept 33,Jan-June 1982 ML20050B5401982-03-30030 March 1982 Semiannual Operating Rept,Jul-Dec,1981. ML20010G1941981-09-10010 September 1981 Semiannual Operating Rept for Jan-June 1981 ML20038B2531981-08-26026 August 1981 Natl Bureau of Stds Reactor. ML20009H0111981-07-28028 July 1981 Ro:On 810717,no Deuterium Oxide Level Indication Discovered. Caused by Substance Draining Into Storage Tank Due to Failure of Valve DWV-39 to Close.Revised Procedures Instituted to Upgrade Insp Requirements ML19343C4501981-03-20020 March 1981 Operations Rept 30 for Jul-Dec 1980. ML19347B2911980-09-26026 September 1980 Semiannual Operating Rept,Jan-June 1980. ML19340E2031980-04-0808 April 1980 Semiannual Operating Rept 28,Jul-Dec 1979. ML20125D0401979-10-26026 October 1979 Rept on Nature & Source of Radioactive Matl Found at Nbs Reactor Site ML19208D5251979-09-28028 September 1979 Operations Rept 27, Jan-June 1979 ML20214M9261966-12-16016 December 1966 Suppl B of FSAR on Nbs Reactor ML20214M9321966-10-0101 October 1966 Suppl a of FSAR on Nbs Reactor ML20214M9461961-01-0101 January 1961 Preliminary Hazards Summary Rept 1998-12-31 |
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