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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20059L7981993-11-0909 November 1993
Ro:On 931026,reactor Started & Inadvertently Operated from 1350 to 1448 H W/O Period Channel Functioning Properly Due to Sticking of Trip Test Knob.Lecture Review of Startup, Power Change & Shutdown SOPs Will Be Performed
ML20086G5391984-01-0303 January 1984
Ro:On 831229,during Connection of Cable from Log N Period Compensated Ion Chamber,Spurious Signal Occurred,Causing Reactor Scram.Caused by Failure to Reconnect Cable After Semiannual Check
1993-11-09
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Category:TEXT-SAFETY REPORT
MONTHYEARML20210P0971999-08-0606 August 1999
Safety Evaluation Supporting Amend 16 to License R-79
ML20206E7731999-03-31031 March 1999
Progress Rept 1998-99 for Univ of Missouri-Rolla Reactor Facility for Period 980401-990331. with
ML20207L4511999-03-0202 March 1999
Safety Evaluation Supporting Amend 15 to License R-79
ML20217P3781998-03-31031 March 1998
Progress Rept,1997-98 for Univ of Missouri-Rolla,Nuclear Reactor Facility. Rept Covers Periods 970401-980331
ML20138G8921997-03-31031 March 1997
Progress Rept for Univ of Missouri-Rolla Nuclear Reactor Facility Apr 1996-Mar 1997
ML20133N3101996-10-31031 October 1996
Monthly Operating Rept for Oct 1996 for Univ of Mo Research Reactor
ML20108A9841996-03-31031 March 1996
Progress Rept 1995-96 Univ of MO-Rolla Nuclear Reactor Facility
ML20082R7861995-03-31031 March 1995
Progress Rept for Univ of Missouri-Rolla Nuclear Reactor Facility Apr 1994-Mar 1995
ML20070N7611994-04-29029 April 1994
Progress Rept for Univ of Missouri-Rolla Nuclear Reactor Facility
ML20059L7981993-11-0909 November 1993
Ro:On 931026,reactor Started & Inadvertently Operated from 1350 to 1448 H W/O Period Channel Functioning Properly Due to Sticking of Trip Test Knob.Lecture Review of Startup, Power Change & Shutdown SOPs Will Be Performed
ML20056D9331993-07-30030 July 1993
Safety Evaluation Supporting Amend 12 to License R-79
ML20128C7821993-01-31031 January 1993
Initial Loading & Testing of Low Enriched U Fuel at Univ of Missouri-Rolla Reactor Facility
ML20095J5491992-03-31031 March 1992
Progress Rept 1991-92 Univ of Missouri-Rolla Nuclear Reactor Facility
ML20073G1941990-12-31031 December 1990
Progress Rept 1990-91 Univ of Missouri-Rolla Nuclear Reactor Facility
ML20065G7041989-12-31031 December 1989
Thesis Entitled, Neutronics Study of Conversion of Univ of Missouri-Rolla Reactor to Low Enriched U Fuel
ML20245L7491989-03-31031 March 1989
Progress Rept 1988-89 Univ of Missouri-Rolla,Nuclear Reactor Facility
ML20065G7061989-01-31031 January 1989
Paper Entitled, Reactivity Accident Analysis of Univ of Missouri-Rolla Reactor Low Enriched U Core, Submitted for Natl Heat Transfer Conference in Philadelphia,Pa in Aug 1989
ML20065G7051988-12-31031 December 1988
Reactivity Worth of Flooded Isotope Production Element in Core of Univ of Missouri-Rolla Reactor
ML20154L5281988-05-31031 May 1988
Rev 2 to Operator Requalification Program
ML20154H0661988-03-31031 March 1988
Progress Rept 1987-1988,Univ of Missouri-Rolla Nuclear Reactor Facility
ML20150B4491987-12-31031 December 1987
Rev 2 to Operator Requalification Program
ML20209J1761987-03-31031 March 1987
Progress Rept,1986-1987,University of Missouri-Rolla Nuclear Reactor Facility
ML20203G8281986-03-31031 March 1986
Progress Rept for Univ of Missouri-Rolla,Nuclear Reactor Facility,Apr 1985 - Mar 1986
ML20135G3401985-06-30030 June 1985
Univ of Missouri Research Reactor Annual Rept,Jul 1984 - June 1985
ML20116L1941985-03-31031 March 1985
Progress Rept for Univ of Missouri,Rolla,Mo Nuclear Reactor Facility,Apr 1984 - Mar 1985
ML20098G3211984-09-27027 September 1984
Rev 1 to SAR for Univ of Missouri-Rolla Reactor
ML20084D3831984-03-31031 March 1984
Progress Rept 1983-84,Univ of Missouri - Rolla Nuclear Reactor Facility, Covering Apr 1983 - Mar 1984
ML20086G5391984-01-0303 January 1984
Ro:On 831229,during Connection of Cable from Log N Period Compensated Ion Chamber,Spurious Signal Occurred,Causing Reactor Scram.Caused by Failure to Reconnect Cable After Semiannual Check
ML20078F6701983-03-31031 March 1983
Progress Rept 1982-1983,Univ of Missouri - Rolla Nuclear Reactor Facility
ML20069M3291983-03-31031 March 1983
Progress Rept,Univ of MO-Rolla Apr 1982 - Mar 1983
ML20052B6511982-04-0101 April 1982
Progress Rept for Apr 1981-Mar 1982
ML20004C6531981-04-23023 April 1981
Progress Rept Apr 1980-Mar 1981.
ML20078F6641981-03-31031 March 1981
Rev 1 to Operator Requalification Program for Univ of Missouri - Rolla Nuclear Reactor Facility
ML19345G2321981-03-11011 March 1981
Operator Requalification Program
ML19345F7321981-02-19019 February 1981
Operator Requalification Program
ML19309H8851980-03-31031 March 1980
Annual Progress Rept of Univ of Mo,Rolla Nuclear Reactor Facility,Apr 1979-Mar 1980.
ML19256F7301979-12-11011 December 1979
Hazard Analysis Summary Rept
1999-08-06
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Text
y__ . i
/} /h I Nuclear Reactor Facility Nuclear Reactor II Rolla, Missouri 65401 Telephone: (314)341-4236 UNIVERSITY OF MISSOURI-ROLLA January 3, 1984 Mr. James Keppler Regional Administrator Region III Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 Mr. Keppler:
Subject:
Potential Reportable Event On Thursday, December 29 the UMR Reactor was momentarily operated in violation with our Technical Specification 5.4, which reads, "The channels of nuclear instrumentation listed below with their minimum operating ranges shall at all times be operational and connected to the safety system, except as noted in Table 1."
During a routine reactor startup, it was noticed that the Log N and Period channels were not responding properly. The reactor power was stabilized at low power, 10 W, and the reactor put into automatic control.
The Senior Operator on Duty was relieved by a Reactor Operator and the Senior Operator went behind the console to check the instrumentation. He noticed that the cable from the Log N/ Period Compensated Ion Chamber was not connected. (It had apparently been left off following the recent semiannual check.) As he was connecting it a spurious sigcal occurred on the Period channel which caused the reactor to scram.
During this attempted startup we were in compliance with the last part of Technical Specification 5.4 which reads, "A minimum of two channels will be on scale providing meaningful information through all power ranges."
s We will implement administrative controls in order to prevent such an event from happeni.1g again.
We contacted Mr. Kenneth Ridgeway of your office and Mr. Cecil Thomas at NRC Headquarters of this matter on Friday December 30.
Sincerely, Albert E. Bolon Reactor Director cc. Dean Don Warner Mr. Kenneth Ridgeway Mr. Cecil 0. Thomas Mr. Robert E. Carter Mr. Nord Gale
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