ML20205T648
| ML20205T648 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, Catawba, McGuire, 05000000 |
| Issue date: | 06/09/1986 |
| From: | Tucker H DUKE POWER CO. |
| To: | Harold Denton, Youngblood B Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20205T651 | List: |
| References | |
| TAC-61680, TAC-61681, NUDOCS 8606160126 | |
| Download: ML20205T648 (3) | |
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Duxe POWER GoxPm P.O. HOX 33180 CHARLOTTE, N.C. u8u4u TEternose II AL II. Tt:CKER (704) 073-4538 vis e emessorme
.. u...,- u June 9, 1986 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Attention:
Mr. B.J. Youngblood, Director PWR Project Directorate #4
Subject:
McGuire Nuclear Station, Units 1 and 2 Catawba Nuclear Station, Units 1 and 2 Docket Numbers 50-369/370 and 413/414 Proposed Technical Specifications to Revise Allowable RCS Leakage
Dear Mr. Denton:
Attached are proposed license amendments for McGuire Nuclear Station, Facil-icy Operating Licenses NPF-9 (Unit 1) and NPF-17 (Unit 2), and Catawba Nuclear Station, FOL numbers NPF-35 (Unit 1) and NPF-52 (Unit 2). The changes increase the amount of time that a unit may operate with Reactor Coolant System (RCS) leakage in the range of 1 to 3 gallons per minute (gpm).
Due to recent events at McGuire and Catawba involving required shutdowns due to unidentified RCS leakage in excess of 1 gpm, the NRC staff suggested that Duke request a Technical Specification change to allow continued operation in certain situations when unidentified leakage exceeds the limit.
The purpose of the change is to provide an opportunity to identify the source of the leakage while the RCS is pressurized. The effect of the change is to allow operation in Mode 1 for up to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> with unidentified RCS leakage between 1 and 3 gpm.
i The proposed changes are contained in Attachment I, a discussion of the Justification and Safety Analysis in Attachment II, and a No Significant Hazards Analysis in Attachment III. Attachment IV lists the references used in Attachment II and III.
As the NRC is well aware, there has existed an intense effort since early 1985 by both NRC staff and industry to reevaluate the purpose of technical specifications. This effort reached a milestone in October 1985 when both the NRC Technical Specification Improvement Project and the Atomic Industrial Forum (AIF) Subcommittee on Technical Specification Improvements issued reports on the results of their respective efforts.
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8606160126 860609 PDR ADOCK 05000369 l
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Mr Harold R. Denton, Director June 9, 1986 Page 2 One of the concerns that has been identified with current technical specifi-cations is that some require the plants to undergo shutdown transients unnecessarily. This requirement exists in the present McGuire/ Catawba RCS leakage specifications. This proposed change seeks to allow additional operational flexibility and reduce the need for a relatively prompt plant shutdown, due to increased RCS leakage, while at the same time assuring safety.
Duke believes that the proposed change contained herein, if approved, would demonstrate a positive conunitment by the NRC towards improving the overall quality of technical specifications.
This submittal constitutes one request for amendment to McGuire's and Cataw-ba's Technical Specifications; consequently, pursuant to 10CFR170.21, a check for $150.00 is enclosed.
Very truly yours,
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Hal B. Tucker SAG /j gm Attachments xc:
W.T. Orders Dayne Brown, Chief Senior Resident Inspector Radiation Protection Branch l
McGuire Nuclear Station Division of Facility Services Department of Human Resources Dr. J. Nelson Grace P.O. Box 12200 Regional Administrator Raleigh, North Carolina l
U.S. Nuclear Regulatory Commission Region II Mr. Heyward G. Shealy, Chief 101 Marietta St., NW Bureau of Radiological Health Atlanta, Georgia 30323 S.C. Dept. of Health &
Environmental Control P.H. Skinner 2600 Bull Street NRC Resident Inspector Columbia, SC 29201 Catawba Nuclear Station Darl Hood, Project Manager Dr. K.N. Jabbour Office of Nuclear Reactor Regulation Office of Nuclear Reactor Reg.
U.S. Nuclear Regulatory Conunission U.S. Nuclear Reg. Commission Washington, D.C.
20555 Washington, D.C.
20555
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Mr. Harold R. Denton, Dircetcr June 9, 1986 Page 3 HAL B. TUCKER, being duly sworn, states that he is Vice President of Duke Power Company; that he is authorized on the part of said Company to sign and file with the Nuclear Regulatory Commission this revision to the McGuire Nuclear Station License Nos. NPF-9 and NPF-17 and that all statements and matters set forth therein are true and correct to the best of his knowledge.
W /h c 4r Hal B. Tucker, Vice Pr esident Subscribed and sworn to before me this Sc[.dayof j /T7[a M_. _. A_ > d 6 ( L /
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