ML043270210

October 2004 Monthly Operating Report for University of Missouri Research Reactor Facility

ML043270210
Person / Time
Site:	University of Missouri-Columbia
Issue date:	11/11/2004
From:	Foyto L Univ of Missouri - Columbia
To:	Alexander Adams Office of Nuclear Reactor Regulation
References
Download: ML043270210 (5)

Text

Research Reactor Center Research Park Columbia, MO 65211 91 University of Missouri-Columbia PhONE (573) 882-42 11 FAx (573) 882-6360 November 11, 2004 Mr. Alexander Adams, Jr.

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

SUBJECT:

University of Missouri Research Reactor Facility Docket No. 50-186 Monthly Operations Summary

Dear Mr. Adams:

Enclosed is a copy of MURR's Monthly Operations Summary for October 2004. If you have any questions, please contact me at (573) 882-5276.

Sincerely, Leslie P. Foyto Reactor Manager LPF/djr Enclosure AN EQUAL OPPowm-atry/ADA S=rrON ' 0 2L

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• RESEARCH REAcTOR OPRTIONS MO!VACY suiquARy October 2004 Preyarecby:

Oyerations Staff

INTRODUCTION The reactor operated continuously in October with the following exceptions:

4 shutdowns for scheduled maintenance and refueling; 1 unscheduled shutdown. Received notification from the NRC that three new Reactor Operator and three new Senior Reactor Operator licenses had been issued.

MAINTENANCE ACTIVITIES 10/4/04 Refueled - removed core 04-46, loaded core 04-47.

Replaced the MURR Industrial Building branch feeder breaker.

10/6/04 Shipped eight spent fuel elements to Savannah River Site.

10/8/04 Refueled - removed core 04-47, loaded core 04-48.

10/11/04 Refueled - removed core 04-48, loaded core 04-49.

Performed backflush on the Pool Coolant System Heat Exchanger, (Secondary Side).

10/18/04 Refueled - removed core 04-49, loaded core 04-50.

Completed the biennial change out of Control Blade 'D' Offset Mechanism.

Replaced the wiring from the breaker to the motor for Secondary Coolant System Pump P-3.

10/25/04 Refueled - removed core 04-50, loaded core 04-5 1.

10/27/04 Shipped eight spent fuel elements to Savannah River Site.

UNSCHEDULED SHUTDOWNS Date No. Type Cause 10/8/04 NA Scram Loss of Domestic Cold Water to the Facility On October 8, the reactor was manually shutdown when a loss of Domestic Cold Water (DCW) supply occurred at the facility. As part of the Cooling Tower Electrical Upgrade Project, trench work was being performed in order to install a new underground primary duct bank. While a backhoe was attempting to remove a large piece of concrete from the trench, the concrete inadvertently hit an exposed section of PVC piping, causing a break in the DCW supply line.

The reactor was shutdown and DCW supply to the facility was isolated. Campus maintenance performed repairs and the supply line was flushed and placed back in service. The reactor was refueled and subsequently returned to 10 MW operation.

OPERATION

SUMMARY

FOR MONTH OF Oct-04 University of Missour Research Reactor Center (MURR)

-HOURS OPERATED THIS PERIOD 1 668.48 TOTAL HOURS OPERATED, REACTOR 1 261,881.53 HOURS OPERATED AT FULL POWER, THIS PERIOD i 662.82 1 TOTAL HOURS AT FULL POWER, REACTOR 1 258,542.24 INTEGRATED POWER THIS PERIOD l 276.30 l MWD TOTAL INTEGRATED POWER, REACTOR l 101,926.99 l MWD Submitted by:

ID 6L 5 /K MWD Custodian/Reactor Physicist Date:

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