ML20236S306

Submits Partial Withdrawal of License Amend Request to License NPF-42 Which Proposed to Increase AOT from 1 H to 24 H to Restore Inoperable Accumulator If Inoperable for Reasons Other than Not Meeting B Concentration Requirements

ML20236S306
Person / Time
Site:	Wolf Creek
Issue date:	07/17/1998
From:	Muench R WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ET-98-0055, ET-98-55, NUDOCS 9807240253
Download: ML20236S306 (2)

Text

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W$LF CREEK NUCLEAR OPERATING CORPORATION Richard A. Muench

%ce President Engineenng JUL 171998 ET 98-0055 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station F1-137 Washington, D. C. 20555

Reference:

1) Letter CO 95-0001, dated March 24, 1995, from R. N. Johannes, WCNOC to USNRC

2) Letter ET 95-0073, dated July 26, 1995, from R. C. Hagan to USNRC

3) Letter ET 96-0063, dated September 5, 1996, from R. A. Muench to USNRC

Subject:

Docket No. 50-482: Partial Withdrawal of License Amendment Request to Technical Specification 3.5.1,

" Emergency Core Cooling Systems - Accumulators" Gentlemen:

This letter withdraws, in part, an application for amendment to Facility Operating License No. NPF-42 for the Wolf Creek Generating Station. Reference 1 transmitted an application for amendment proposing to revise Technical Specification 3.5.1. This application, in part, proposed to increase the allowed outage time from 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to restore an inoperable accumulator if inoperable for reasons other than not meeting its boron concentration requirements. References 2 and 3 provided additional  !

information concerning the risk-based approach for extending the allowed outage time.

Wolf Creek Nuclear Operating Corporation (WCNOC) submitted the application for amendment in early 1995 as part of a joint program with Union Electric to provide line-item improvements to the technical specifications. A similar

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I license amendment request was approved for the Callaway Plant on August 5, /

.1994. Subsequently, the NRC staff issued guidance in Draft Regulatory Guide,

.DG-1065, "An Approach for Plant-Specific, Risk Informed Decision Making: ,

f Technical Specification." Based on this draft guidance, the NRC staff has requested that WCNOC withdraw that portion of the application for amendment that requested an extension of the allowed outage time frem I hour to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to restore an inoperable accumulator if inoperable for reasons other than not meeting its boron concentration requirements.

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l WCNOC requests that the NRC issue the proposed change that would provide a 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> allowed outage time for one accumulator being inoperable due to its boron concentration not meeting .the 2300-2500 ppm band and maintain the allowed outage time of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to restore an inoperable accumulator if inoperable for reasons other than not meeting its boron concentration requirements.

Additionally, it is requested that the NRC proceed with the proposed change to I move. Surveillance Requirement 4.5.1.2 to the Updated Saf ety Analysis. This i

!' will complete the actions associated with this application for amencment. l l 'hvv] P.O. Box 411/ Burhngton, KS 66839 / Phone: (316) 364-8831 qual genung En @ p m W l 9807240253 980717 f PDR ADOCK 05000482.

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, -* ?; -ET--98-0055 .

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WCNOC J intends f to J re' submit an application for ^ amendment _. as_ . the Westinghouse-- '

-1 Owners. Group lead- plantfor. the review of WCAP-15049, " Risk Informed' Evaluation of an Extension to Accumulator Completion Times." ,

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'If you.have'any questions concerning this response, please contact me at-(316)

'364-_8831, extension 4034,'or'Mr..' Michael J. Angus,'at extension 4077.

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very truly yours,.

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Richar A. Muench RAM /rlr-cc: - V. L. Cooper (KDHE) 1

.W.'D.. Johnson (NRC)  !

E. W..Merschoff-(NRC)'

- J. F.t Ringwald (NRC). {

K. M. Thomas-(NRC) i h I J

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Richard A. Muench, of lawful age, being first duly sworn upon oath says that he is Vice President Engineering of Wolf Creek Nuclear Operating Corporation; that he has read the foregoing document and knows the content thereof; that he has executed that same for and on behalf of said Corporation with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.

By h Richard . Muench

. Vice.Pr sident Engineering SUBSCRIBED and sworn to before me this / day of 614[,1998.

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