ML20203C392

Revised Application for Amends to Licenses NPF-9 & NPF-17, Establishing Lower Limit on Boron Concentration. Justification,Safety Analyses & Analysis of Significant Hazards Consideration Encl

ML20203C392
Person / Time
Site:	McGuire, Mcguire
Issue date:	04/17/1986
From:	Tucker H DUKE POWER CO.
To:	Harold Denton, Youngblood B Office of Nuclear Reactor Regulation
Shared Package
ML20203C398	List: ML20203C392 ML20203C404
References
TAC-59579, TAC-59580, NUDOCS 8604210148
Download: ML20203C392 (2)

Text

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....._ ..o DUKE POWER GOMi%NY P.O. HOK 33180 CitAHLOTTE. N.C. 28242 HAL H. TUCKER re:EPHONE V9tJE PRESBDawt (704) 37:H531

= = == = - April 17, 1986

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,tM E,.HBarold RU Denton, Director "Offide"Of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission

Washington, D.C. 20555 Attention: Mr. B.J. Youngblood, Director PWR Directorate No. 4 l

Subject:

McGuire Nuclear Station Docket Nos. 50-369 and 50-370 l

Technical Specification Amendment for Cold Leg Accumulator Boron Requirements l

Dear Mr. Denton:

i By letter dated August 19, 1985, Duke Power Company proposed changes to the

l. McGuire Nuclear Station Technical Specifications to allow more time to restore l the boron concentration in a cold leg accumulator that is out of specification.

l By letter dated December 5,1985, NRC requested additional justification ad-I dressing a lower boron limit or a modification of the proposed specification.

In accordance with this request, please find attached a supplemental proposal to address a lower limit on boron concentration.

The supplemental proposal would establish a lower limit of 1500 ppm volume weighted average for the three limiting accumulators or to be in e one hour action statement prior to initiating shutdown (six hours would b2 allowed I

for a weighted average of 1500-1900 ppm, twenty four hours if greater than 1900 ppm). The proposal also clarifies the bases based upon these proposed changes.

Attachment I contains the proposed Technical Specification Changes; Attach-ment 2 contains the Justification and Safety Analyses in support of the i

proposed changes;. Attachment 3 provides a determination that the proposed changes do not involve any significant hazards consideration as defined by 10CFR50.92.

This request is supplemental to an earlier submittal and in response to an NRC letter, hence no application fees are required.

Please feel free to contact us if you require any additional information.

Very truly yours, i

I .--*

, -Hal B. Tucker JBD/jgm 8604210148 DR 860417 l i ADOCK 05000369 4i0 l PDR \ j Attachments "I g

H.R. Denton

' April 17, 1986

.Page 2

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Dr. J. Nelson Grace, Regional Administrator -

U.S. Nuclear Regulatory Commission Region 11 101'Marietta Street, Suite 3100 Atlanta, Georgia 30323 Mr. W.T. Orders

. Senior. Resident Inspector McGuire Nuclear Station Mr. Dayne Brown,' Chief Radiation Protection Branch Division.of Facility Services Department of Human Resources P.O. Box 12200 Raleigh, North Carolina s

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