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 Issue dateTitleTopic
ML20195B66910 November 1998Safety Evaluation Supporting Amend 17 to License R-106
ML20155E81230 June 1998Annual Rept of Oregon State Univ Radiation Center & Triga Reactor for 970701-980630
ML20203K5282 March 1998RO 33732:on 980217,OSTR Failed to Shut Down When Console Manual Scram Button Was Pushed.Caused by Spring Return Switch Failed to Return Completely to Operate Position. Console Key Switch Cleaned & RelubricatedShutdown Margin
ML20236K72520 February 1998RO 33732:on 980217,manual Scram Failure Occurred.Caused by Spring Return Key Switch Failing to Return Completely to Operate Position & Wiring Change Difference.Removed & Cleaned Switch & Performed Encl 10CFR50.59 Evaluation
ML20236K73020 February 1998Osu Triga Reactor (OSTR) Changes,Tests & Experiments Evaluated Under Provisions of 10CFR50.59
ML20199G03328 January 1998Safety Evaluation Supporting Amend 16 to License R-106
ML20217A7455 September 1997Ro:On 970812,questioned Whether OSTR Matl Balance Rept Date of 970728 Was Date Completed or Date Not to Be Exceeded. Caused by Reactor Administrator'S Pressure of Work Load. Completed OSTR Matl Balance Rept
ML20236F47630 June 1997Corrected Table V.B.2 for 1996-1997: Monthly Summary of Gaseous Effluent Releases to Annual Rept of or State Univ Radiation Ctr & Triga Reactor for Period July 1996 - June 1997
ML20212D45330 June 1997Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor,960701-970630
ML20138G76523 December 1996Ro:On 961203,staff Performed Irradiations W/O Following Procedural Controls.On 961216,staff Prepared Shipment of Irradiated Fission Track Samples W/O Following Procedures. Caused by Staff Error.Staff Counseled
ML20134E41830 June 1996Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor for Period 950701-960630
ML20093M98530 June 1995Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor June 1994-June 1995
ML20094B36230 June 1995Annual Rept of Changes,Tests & Experiments Performed Per 10CFR50.59 for Period Jul 1994 - June 1995
ML20078C15130 June 1994Annual Rept of or State Univ Radiation Ctr & Triga Reactor, 930701-940630
ML20059C44330 June 1993Annual Rept of or State Univ Radiation Ctr & Triga Reactor,920701-930630Earthquake
ML20059H58430 June 1993Annual Rept of Changes,Tests & Experiments Performed Under 10CFR50.59 for 920701-930630
ML20128G9901 February 1993Ro:Discovered That Reactor Not Pulsed Semiannually to Compare Fuel Temp Measurements & Peak Power Levels W/Levels of Previous Pulses of Same Reactivity Value.Chart Listing Semiannual Surveillance & Maint Items Encl
ML20116J23830 June 1992Annual Rept of Changes,Tests & Experiments Performed Under Provisions of 10CFR50.59 for Oregon State University Triga Reactor (Ostr)
ML20116D01130 June 1992Annual Rept of Oregon State Univ Radiation Center & Triga Reactor for Jul 1991 - June 1992
ML20079P0264 November 1991Annual Rept of Changes,Tests & Experiments Performed Under Provisions of 10CFR50.59 for Oregon State Univ Triga Reactor for Jul 1990-June 1991Fitness for Duty
Shutdown Margin
ML20085L07330 June 1991Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor,Jul 1990-June 1991
ML20029A75425 February 1991Followup RO Per 910215 Telcon:On 910215,water Level in Reactor Tank Lower than Normal.Caused by Water Running Out from Under Concrete Block Shield Surrounding Demineralizer Tank.Barrier Dam Constructed Across HX Room
ML20062H79127 November 1990Annual Rept of Changes,Tests & Experiments for Jul 1989 - June 1990 Under 10CFR50.59Shutdown Margin
ML20058F22430 June 1990Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor, for Jul 1989 - June 1990
ML19327C04231 October 1989Amend 5 to, SAR for Oregon State Triga Reactor (Ostr).Fuel cladding
ML19325C7002 October 1989Annual Rept of Changes,Tests & Experiments Performed Under Provisions of 10CFR50.59 for Triga Reactor,For Jul 1988 - June 1989Shutdown Margin
ML20246D10715 August 1989Safety Evaluation Supporting Amend 10 to License R-106
ML20012A09030 June 1989Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor Jul 1988 - June 1989.
ML20005D60330 June 1989Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor Jul 1988 - June 1989.Shutdown Margin
Stolen
ML20245B34617 April 1989Ro:On 890406,during Routine Pulsing Operation,Blue Pen Which Records Linear & Peak Power Went off-scale.Caused by Omission of 100-ohm Resistor Normally Placed Across Console Terminals.Operators Reprimanded & Procedures Changed
ML20204G11630 September 1988Annual Rept of Changes,Tests & Experiments for Oregon State Univ Triga Reactor for Jul 1987 - June 1988
ML20235D06030 June 1988Annual Rept of Oregon State Univ Radiation Ctr & Triga Reactor Jul 1987 - June 1988
ML20154J25117 May 1988RO Re Jan 1988 Event in Which Procedures Consistent W/New NRC Policy Used Rather than Exact Written Procedures.Reactor Operations Committee Meeting on 880513 Preceeded Info for Review.Staff Instructed to Use Exact Procedures
ML20150C87615 March 1988Requalification Program for Licensed Operators of Oregon State Univ Triga Reactor (Ostr)Fuel cladding
ML20149M71011 February 1988Safety Evaluation Supporting Amend 9 to License R-106
ML20235R10228 September 1987Annual Rept of Changes,Tests & Experiments Performed Under Provisions of 10CFR50.59 for Oregon State Univ Triga Reactor (Ostr), for Jul 1986 - June 1987Shutdown Margin
ML20235E74230 June 1987Oregon State Univ Triga Reactor Annual ReptOpen House
ML20197B2943 October 1986Annual Rept of Changes,Tests & Experiments for Jul 1985 - June 1986,per 10CFR50.59
ML20138J9474 October 1985Changes to Facility,To Facility Procedures & to Reactor Experiments for Jul 1984 - June 1985
ML20133N39930 June 1985Oregon State Univ Triga Reactor Annual Rept, for Reporting Period Jul 1984 - June 1985Open House
Fuel cladding
Stolen
ML20080L29719 September 1983Annual Rept of Changes,Tests & Experiments Made Under 10CFR50.59 for Triga Reactor,Jul 1982 - June 1983
ML20071N40225 May 1983Ro:On 830523,discovered Insp of Transient Control Rod Not Conducted Since 810317.Caused by Misinterpretation of Tech Specs.Surveillance Time Intervals Will Be Modified Per Ansi/Ans 15.1-1982 Guidelines
ML20003G25517 April 1981Ro:On 810414,continuous Control Rod Withdrawal Occurred, Resulting in Net Insertion of 80 Cents Reactivity Worth. Caused by Failure of Safety Rod Up Switch.Operations Instructions Bulletin Written Re Possible Recurrence
ML19340D37719 December 1980Ro:On 801212,reactor Operated for Approx 1-h W/ Nonfuctioning Air Pump on Reactor Top Continuous Air Particulate Radiation Monitor.Caused by Loosely Fitting Power Plug &/Or Loose Fuse Holder Connection
ML19337A78231 August 1980or State Univ Triga Reactor Annual Rept for Jul 1979-June 1980Emergency Lighting
Open House
Stolen
ML19310A3863 June 1980Ro:On 800520,while Performing Routine Pulses,One of Five Pulses Produced Peak Power & Measured Fuel Temp Beyond Expectation for 2.55 Dollar Reactivity Insertion. Apparently Caused by 2.75 Dollar Reactivity InsertationFuel cladding
ML20125C56518 December 1979Safety Evaluation Supporting Amend 4 to License R-106
ML19290A08030 June 1979Annual Operating Rept for Jul 1978-June 1979Shutdown Margin
Emergency Lighting
Open House
Power change