ML20006E827

Advises That Util 900131 Response to NRC Bulletin 89-003, Potential Loss of Required Shutdown Margin During Refueling Operations, Acceptable

ML20006E827
Person / Time
Site:	Maine Yankee
Issue date:	02/15/1990
From:	Leeds E Office of Nuclear Reactor Regulation
To:	Frizzle C Maine Yankee
References
IEB-89-003, IEB-89-3, TAC-75432, NUDOCS 9002260397
Download: ML20006E827 (3)

Text

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T February 15, 1990 j

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(' y LDocNetNo.50309 Mr.-C. D. Frizzle, President

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Maine Yankee Atomic Power Company J

83* Edison Drive L,4 Augusta, Maine 04336

SUBJECT:

RESPONSE TO BULLETIN 89-03 (TAC NO. 75432)

On November 21, 1989, the NRC staff issued lulletifi 89-03 " Potential loss of Required. Shutdown Margin During Refueling Operations." The bulletin requested that all PWR licensees and PWR construction permit holders take the actions described in the bulletin to ensure that an adequate shutdown margin is main-toined during all refueling operations. To accomplish this, three actions were described:

1.

Assure that.any intermediate fuel assembly configuration (including control rods) intended to be used during refueling is identified and evaluated to. maintain sufficient refueling boron concentration to result'in a minimum shutdown margin of approximately 5%.

2.

Assure that fuel loading procedures only allow those intermediate fuel assembly configurations that do not violate the allowable shutdown margin:and that these procedures are strictly adhered to.

3.

Assure that the staff. responsible for refueling; operations is trained

'in the procedures reconnended in Item 2 above'and understand the poten.

tial consecuences of violating these procedures. This training should include the fundamental aspacts of criticality control with enriched fuel assemblies.

.By letter. dated January 31,.1990, you responded to Bulletin 89 03 which indicated that programs are in place and will be implemented to address all three actions described above. Therefore, the staff considers your response to Bulletin 89 :to be satisfactory and TAC No. 75432 to be closed.

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Original signed by Eric J. Leeds, Project Manager i.

Project Directorate 1 3 i

,m Division of Reactor Projects I/II cc: See next page

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'Mr. Charles B. Brinkman Mr. G. D. Whittier, Manager Manager - Washington Nuclear Nuclear Engineering and Licensing-Operations-Combustion Engineering, Inc.

Maine Yankee Atomic Power Company 83 Edison Drive 12300 Twinbrook Parkway, Suite 330 Augusta, Maiaa 04336 Rockville, Maryland 20852 Mr. Robert W. Blackmore, John A'.:Ritsher, Esquire Plant Manager j

~ Ropes & Gray' Maine Yankee Atomic Power Company l

225 Franklin Street P.O. Box 408-Boston, Massachusetts 02110 Wiscasset, Maine 04578 State Planning Officer 3

Executive Department 189 State Street Augusta, Maine 04330 Dr. E. T. Boulette, Vice President Operations Maine Yankee Atomic Power Company

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P. O. Box 408 l

Wiscasset, Maine 04578

-1 Mr. J. H. Garrity, Vice President Licensing and-Engineering Maine Yankee Atomic Power Company 83 Edison Drive Augusta, Maine 04336

-Regional Administrator, Region I 1

.U.S. Nuclear Regulatory Commission 475 Allendale-Road King of Prussia, Pennsylvania 19406

-First Selectman of Wiscasset Municipal Building U.S. Route 1 4

Wiscasset, Maine 04578 Mr. Cornelius.F. Holden Resident inspector.

-Maine Yankee Atomic Power Station U.S. Nuclear Regulatory Connission P. O. Box E

~Wiscasset, Maine' 04578 Mr. P. L. Anderson, Project Manager Yankee Atomic Electric Company 580 Main Street Bolton, Massachusetts 01740-1398 I

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