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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20210N7891999-08-0303 August 1999 Ro:On 990802,licensed RSO Was Not Readily Available During Operation of Reactor IAW TS 6.1.5.Caused by SRO on Duty Leaving Site Boundary & Not Informing RO in Reactor Cr. Licensee Will Initiate Two Administrative Procedure Changes ML20154S1131998-10-22022 October 1998 Special Rept Re Portion of Rs Sys Contained in New Power Measuring Instruments Purchased from Sorrento Electronics & Received in Mar 1996,that Does Not Appear to Meet Single Failure Criterion.Will Make Mods to Linear Power Channels ML20133P5981997-01-21021 January 1997 Ro:On 961220,designated Valve E Would Not Close on Signal Introduction.Reactor Core Alteration & Low Power Neutron Flux Measurement Was Planned 961227 ML20003C4801981-02-0909 February 1981 Ro:On 810130,emergency Generator Failed to Maintain Proper Operating Voltage & Generator Cycled Radically. Caused by Improperly Positioned Voltage Regulator manual-auto Switch.Warning Label Added to Panel 1999-08-03
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20210N7891999-08-0303 August 1999 Ro:On 990802,licensed RSO Was Not Readily Available During Operation of Reactor IAW TS 6.1.5.Caused by SRO on Duty Leaving Site Boundary & Not Informing RO in Reactor Cr. Licensee Will Initiate Two Administrative Procedure Changes ML20211H3501999-06-30030 June 1999 Operating Rept for Univ Ma Lowell Reactor for Period 980701-990630. with ML20154S1131998-10-22022 October 1998 Special Rept Re Portion of Rs Sys Contained in New Power Measuring Instruments Purchased from Sorrento Electronics & Received in Mar 1996,that Does Not Appear to Meet Single Failure Criterion.Will Make Mods to Linear Power Channels ML20151S9921998-06-30030 June 1998 Operating Rept for Univ of Ma Lowell Reactor for Period of 970701-980630 ML20203A1581998-02-0505 February 1998 SER Re Gamma Cave Facility at Univ of Ma at Lowell,License R-125.Staff Finds Existing Uml Configuration for Controlling Access to High & Very High Radiation Areas Adequately Addresses Requirements of 10CFR20.1601 & 20.1602 ML20211L2221997-09-30030 September 1997 Informs Commission of Conversion Order Issued Under 10CFR50.64,which Requires That non-power Reactors Convert from high-enriched U Fuel to low-enriched U Fuel & Status of HEU to LEU Conversions ML20198E8141997-07-31031 July 1997 SER Supporting Amend 12 to License R-125 ML20216H6571997-06-30030 June 1997 Operating Rept for Univ of Ma Lowell Reactor for Period 960701-970630 ML20133P5981997-01-21021 January 1997 Ro:On 961220,designated Valve E Would Not Close on Signal Introduction.Reactor Core Alteration & Low Power Neutron Flux Measurement Was Planned 961227 ML20117J8411996-06-30030 June 1996 Operating Rept for Univ of Mass Lowell Reactor for Period 950701-960630 ML20091N2251995-06-30030 June 1995 Operating Rept for Univ of Ma Lowell Reactor for Period Jul 1994 - June 1995 ML20072G2181994-06-30030 June 1994 Operating Rept for University of Mass Lowell Reactor,For Period 930701-940630 ML20056G3501993-06-30030 June 1993 Operating Rept for Univ of Ma Lowell Reactor for Jul 1992 - June 1993 ML20114C0611992-06-30030 June 1992 Operating Rept for Univ of Massachusetts,Lowell Reactor for Jul 1991-June 1992 ML20137M3311985-11-30030 November 1985 Safety Evaluation Report Related to the Renewal of the Operating License for the Training & Research Reactor at the University of Lowell.Docket No. 50-223.(University of Lowell) ML20136J1621985-06-30030 June 1985 Operating Rept for Univ of Lowell Reactor, Jul 1984 - June 1985 ML20107K7351985-02-14014 February 1985 Requalification Program for Licensed Reactor Operators & Licensed Senior Reactor Operators ML20107K6871985-02-14014 February 1985 Updated SAR for Univ of Lowell Research Reactor ML20066B8711982-10-21021 October 1982 Operating Rept for Univ of Lowell Reactor,Jul 1982-June 1982 ML20027D0271982-10-21021 October 1982 Monthly Operating Rept for June 1982 ML20040C5331982-01-15015 January 1982 Safety Evaluation Supporting Amend 5 to License R-125 ML20003C4801981-02-0909 February 1981 Ro:On 810130,emergency Generator Failed to Maintain Proper Operating Voltage & Generator Cycled Radically. Caused by Improperly Positioned Voltage Regulator manual-auto Switch.Warning Label Added to Panel ML19253A8821979-08-29029 August 1979 Annual Operating Rept, Jul 1978-June 1979 ML19207C3811979-06-30030 June 1979 Operating Rept for Jul 1978-June 1979 ML19246A9431979-05-29029 May 1979 Safety Evaluation Supporting Amend 3 to License R-125 1999-08-03
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1 Leo Bobek University ofMassachusetts Lowell ReactorSupervisor One University Avenue I ' \\ l \\' I v - t l )
<'f PinanskiHall107A Lowell, Massachusetts 01834 qs~8 \\.
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RADIATION LABORATORY August 03,1999 USNRC
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Document Control Desk Washington, D.C. 20555 And Mr. Thomas Dragoun USNRC RGN-I DRS 475 AllendaleRoad King of Prussia, PA 19406-1415 Re: Facility Docket Number 50-223, Facility License Number R-125
Dear Mr. Dragoun:
This letter is being submitted as required under the University of Massachusetts Research Reactor (UMLRR) Technical Specifications, Section 6.6 for reporting Unusual Events within 30 days.
For approximately 35 minutes on August 2,1999, the UMLRR was out of compliance with UMLRR Technical Specification 6.1.5. This specification requires that a licensed senior reactor operator (SRO) be readily available on call whenever the reactor is in operation.
DESCRIPTION On August 2,1999, UMLRR staffinitiated a routine surveillance procedure for reactivity calibration of the reactor control blades. Reactor operation for the surveillance began at 9:01 a.m.
To determine control blade reactivity, the surveillance requires repeated measurements of reactor period as a function of blade position and is performed at a sufficiently low power to minimize l
temperature etTects. The measurements proceeded throughout the day. At approximately 4:15 p.m., the senior reactor operator on duty left the site boundary having not informed the reactor i
l operator (RO) in the reactor control room. At that time, there were two licensed reactor operators l
f in the facility. At approximately 4:45 p.m., the reactor operator ca; led the SRO's office telephone extension to check when the SRO would be leaving for the day. When there was no answer at the extension, the second RO made a cursory inspection of the reactor containment building and adjacent office building to determine if the SRO on duty or another SRO was present. Having not found either, the RO reported this to the control room RO who then commenced immediate g
reactor shutdown at 4:51 p.m.
CORRECTIVE ACTION
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While thcie was no safety significance associated with this unusual event, this variance in the performance specifications for personnel requirements under the UMLRR technical specifications reverls a weakness in administrative controls designed to limit such unusual events.
< 1 r A ll A 9908110215 990803 PDR ADOCK 05000223 g
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4 T. Dragoun
,USNRC August 3,1999 Page 2 of 2 As a result, the following corrective action will be implemented. in addition to supplemental training on technical specification administrative requirements and the necessary adherence to licensed responsibilities, the UMLRR will initiate two administrative procedural changes. One change will require the SRO on duty to be equipped with a personal electronic communications device. This change will increase assurance that the SRO is aware of on duty status and will be readily available on call in accordance with the administrative requirements of the technical specifications. A second change will require the SRO to record an estimated operations shutdown time and the communications call number on the pre-operational instruction form currently in use.
For further information or questions concerning this matter, please contact me at the above telephone numi>er.
Sincerely, f
L M. Bobek,
.c Reactor Supervisor Cc:
UML Reactor Safety Subcommittee Mr. Ronald Tooker, Chief Reactor Operator
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