ML032751353

August 2003 Monthly Operations Summary for University of Missouri Research Reactor

ML032751353
Person / Time
Site:	University of Missouri-Columbia
Issue date:	09/23/2003
From:	Foyto L Univ of Missouri - Columbia
To:	Alexander Adams Office of Nuclear Reactor Regulation
References
Download: ML032751353 (5)

Text

I Research Reactor Center University of Missouri-Columbia Research Park Columbia, MO 65211 PHONE FAX (573) 8824211 (573) 882-6360 September 23, 2003 IS( -N-6(0 Mr. Alexander Adams, Jr.

U.S. Nuclear Regulatory Commission Mail Stop 012-G13 Washington, DC 20555-0001

SUBJECT:

Monthly Operations Summary Enclosed is a copy of MURR's Monthly Operations Summary for August 2003. If you have any questions, please contact me at (573) 882-5276.

Sincerely, s e Foyto Reactor Manager LM/sm cc. Craig Bassett Enclosure Aozib AN EQuAL opporuTNrrYADA iNsTrrVFJON

UNrVERSITV OF AIvLSSORU2 RESELRCT REACiOR oPETIZTIoNs Dott4OMy Slmm2y SAlUgUSt, 2003 Preparedby:

OperationsStaff

INTRODUCTION The reactor operated continuously in August with the following exceptions: 6 shutdowns for scheduled maintenance and refueling; 1 unscheduled shutdown.

MAINTENANCE ACTIVITIES 8/4/03 Refueled - removed core 03-35, loaded core 03-36.

Relocated Room 202 evacuation switch during asbestos abatement and remodeling.

Removed Room 202 Fan Failure Alarm Panel in accordance with Modification Record 88-7; Addendum 2.

8/7/03 Refueled - removed core 03-36, loaded core 03-37.

8/11/03 Refueled - removed core 03-37, loaded core 03-38.

Replaced temperature element 980B transmitter.

8/18/03 Refueled - removed core 03-38, loaded core 03-39.

8/22/03 Refueled - removed core 03-39, loaded core 03-40.

Replaced the Regulating Rod Position Indication Encoder.

8/25/03 Refueled - removed core 03-40, loaded core 03-41.

Replaced the Nitrogen System Pressure Regulators N-24 and N-25.

a UNSCHEDULED SHUTDOWNS Date No. Type Cause 8/7/03 1167 Scram Rod Position Indication Failure On August 7, a Reactor Scram was manually initiated by the operator when a fault in the Rod Position Indication System resulted in fluctuating position indication for Control Rod 'D'. Troubleshooting revealed a broken ground wire to the position indication amphenol. The broken wire was fixed and the integrity of the remaining control rod position indication amphenols were verified sat. The Rod Position Indication System was tested sat. The reactor was subsequently refueled and returned to operation.

INI Aug OPERATION

SUMMARY

FOR MONTH OF I Aug-03 University of Missour Research Reactor Center (MURR)

HOURS OPERATED THIS PERIOD 1 672.69 _

TOTAL HOURS OPERATED, REACTOR 252,603.17 HOURS OPERATED AT FULL POWER, THIS PERIOD 669.66 TOTAL HOURS AT FULL POWER, REACTOR 1 249,306.86 INTEGRATED POWER THIS PERIOD l 279.21 MWD TOTAL INTEGRATED POWER, REACTOR r 98,077.17 MWD Submitted by: D 01.5 MWD Custodian/Reactor Physicist Date:

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