ML20006B457

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Responds to NRC Bulletin 89-003, Potential Loss of Required Shutdown Margin During Refueling Operations. K-infinity Map for Procedure OP-11 Re Reactor Core Refueling Will Be Revised for Each Reload Prior to Fuel Movement
ML20006B457
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 01/24/1990
From: Morris K
OMAHA PUBLIC POWER DISTRICT
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-89-003, IEB-89-3, LIC-90-0011, LIC-90-11, NUDOCS 9002020220
Download: ML20006B457 (3)


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i Omaha Public Power District '

1623 Harney Omaha. Nebraska 68102 2247 402/536 4000 January 24, 1990 LIC-90-0011 l l

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U. S. Nuclear Regulatory Commission 1 Attn: Document Control Desk  ;

Mail Station PI-137 I Washington, DC 20555

References:

1. Docket No. 50-285 (
2. Letter from NRC (C. E. Rossi) dated November 21, 1989 (NRC l Bulletin 89-03)

Gentlemen:

SUBJECT:

Response to NRC Bulletin 89-03 " Potential Loss of Required Shutdown Margin During-Refueling Operations" Reference 2 requested licensees to take NRC recommended actions to assure that i adequate shutdown margin is maintained during all refueling operations. Omaha  !

l Public Power District will comply with the requested actions by: '

l. Developing a k infinit map of the assemblies in the final core reload configuration Tn order to evaluate any potential intermediate fuel assembly configurations (similar to the actions taken by Baltimore Gas and Electric Company for the Calvert Cliffs Nuclear Power Plant, Units 1 and 2). .
2. Incorporating into Fort Calhoun Operating Procedure OP-ll, " Reactor Core Refueling Procedure", a kinfinit map and procedure step changes which allow fuel to be posit 1Ened only in intermediate core locations that will contain fuel of equal or greater reactivity in the final core configuration.
3. Conducting training with the-operations staff on the revisions to OP-11 and on maintaining adequate shutdown margin.

These actions.will be completed prior to beginning-fuel. movement during the 1990 Refueling Outage. The k i finit map for procedure OP-11 will be revised foreachsubsequentcorereloa0prloftobeginningfuelmovementforthat l

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-LIC-90-00ll:

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This response'is being submitted under oath in-accordance with_the reporting:

requirements of NRC Bulletin 89-03.< If you .have further questions on:this--

. matter: orLrequire additional 'information, please-contact. me.

Sincerely, K._ J.: Morris Division Manager

-Nuclear. Operations KJM/pjc c: ~ LeBoeuf, Lamb, Leiby & MacRao ,

R.- D. Martin, NRC ' Regional Administrator, Region _ IV

- A !Bournia, NRC Project Manager P. H. Harrell, NRC Senior-Resident Inspector

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VNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of Omaha Public Power District ) Docket No. 50-285 (Fort Calhoun Station )

Unit No. 1) )

AFFIDAVIT K. J. Morris, being duly sworn, hereby deposes and says that he is the Division Manager - Nuclear Operations of the Omaha Public Power District; that as such he is duly authorized to sign and file with the Nuclear Regulatory Commission thr, attached information concerning the response to NRC Bulletin 89-03'  ; that he is familiar with the content thereof; and that the matters set forth therein are true and correct to the best of his knowledge, information, and belief.

K.[f.' Mor'ri s Division Manager Nuclear Operations STATE OF NEBRASKA)

) ss COUNTY OF DOUGLAS)

' Subscribed and sworn to before me, a Notary Public in and for the State of Nebraska on this 24 day of January, 1990.

. AL Notary Public W 88 *

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