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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20206D1551987-04-0101 April 1987
Ro:On 870326,safety Channel Ionization on Chamber 2 Moved Out 1/2 Inch During Maint on kW-hour Compensated Ionization Chamber.Caused by Personnel Error.Safety Committee Approved Readjustment Procedure & Recommended Cable Conduit
ML20197A7971986-10-10010 October 1986
RO Re Malfunction of Fuel Temp Readout.Caused by Low Battery Voltage in Thermocouple Circuit.Battery Replacement Procedure,Using 6-month Replacement Interval,Implemented
1987-04-01
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Category:TEXT-SAFETY REPORT
MONTHYEARML20113G4111996-06-30030 June 1996
Univ of MD Training Reactor Annual Operating Rept for Period 950701-960630
ML20045G1451993-06-0101 June 1993
RO Requalification Program for MD Univ Training Reactor.
ML19325D7301989-10-18018 October 1989
Ro:On 891011,set of Thermocouple Leads Disconnected from Terminal Strip in Intermediate Junction Box.Proper Reconnection of Thermocouple Leads Made.All Wires Running to & from Terminal Strip Clearly Labeled
ML20247R4201989-09-13013 September 1989
Annual Rept for Jul 1988 - June 1989
ML20154C5311988-07-19019 July 1988
Annual Rept of Maryland Univ Training Reactor for Jul 1987 - June 1988
ML20237L0891987-08-21021 August 1987
Annual Operating Rept for June 1986 - June 1987,including Summary of Operation Experience,Maint Items,Equipment Surveillance & Tests & Radiation Exposures
ML20206D1551987-04-0101 April 1987
Ro:On 870326,safety Channel Ionization on Chamber 2 Moved Out 1/2 Inch During Maint on kW-hour Compensated Ionization Chamber.Caused by Personnel Error.Safety Committee Approved Readjustment Procedure & Recommended Cable Conduit
ML20197A7971986-10-10010 October 1986
RO Re Malfunction of Fuel Temp Readout.Caused by Low Battery Voltage in Thermocouple Circuit.Battery Replacement Procedure,Using 6-month Replacement Interval,Implemented
ML20135F3551985-06-30030 June 1985
Annual Operating Rept for 840630 - 850630
ML20095B6121984-07-23023 July 1984
Annual Operating Rept,Jul 1983 - June 1984
ML20080B0761984-02-0101 February 1984
Rev 4 to Reactor Operator Requalification Program for Univ of Maryland Training Reactor
ML20077J5981983-07-28028 July 1983
Annual Operating Rept,June 1982 - June 1983
ML20078H3131983-06-0101 June 1983
Rev 3 to Reactor Operator Requalification Program for Maryland Univ Training Reactor
ML20010D1611981-08-11011 August 1981
Reactor Operator Requalification Program
ML20003H5361981-04-25025 April 1981
Revised Reactor Operator Requalification Program
ML19323H0231980-06-30030 June 1980
MD Univ Training Reactor Requalification Program.
1996-06-30
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THEUNIVERSITYOF MARYLAND g COLLEGE PARK CAMPUS Ceportment of Chemical and Nuclear Engineering
[l(p October 10, 1986 Mr. Thomas Elsasser U.S. Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406
Dear Mr. Elsasser:
This letter is in response to a " Reportable Occurrence" telephoned to you on September 30, 1986.
A low battery voltage in the thermocouple circuit caused a malfunction of the fuel temperature readout which was observed quickly as part of the normal operating procedure instrument check. Reoccurrence of this type of malfunction has been minimized by implementing a battery replacement procedure using a six month replacement interval. This replacement scheme is now an item in the standard survellance procedures.
Sincerely, MLR:ga h & $c f-Marvin L. Roush i t-Professor / Chairman Chemical & Nuclear Engineering 8610270395 861010 PDR ADOCK 05000166 g PDR
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Nuclear Engineenno Program r College Park, Maryland 20142 (301) 454-2430/6 ','