ML20141C847

Discusses Completion of Licensing Action for GL 95-03, Circumferential Cracking of Steam Generator Tubes,

ML20141C847
Person / Time
Site:	McGuire, Mcguire
Issue date:	05/15/1997
From:	Nerses V NRC (Affiliation Not Assigned)
To:	Barron H DUKE POWER CO.
References
GL-95-03, GL-95-3, TAC-M92251, TAC-M92252, NUDOCS 9705190242
Download: ML20141C847 (4)

Text

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NUCLEAR REGULATORY COMMISSION o WASHINGTON, D.C. 2006H001 i

\g# May 15,1997 Mr. H. B. Barron

, Vice President, McGuire Site i Duke Power Company

, 12700 Hagers Ferry Road Huntersville, North Carolina 28078

SUBJECT:

MCGUIRE NUCLEAR STATION - COMPLETION OF LICENSING ACTION FOR GENERIC LETTER 95-03, "CIRCUMFERENTIAL CRACKING OF STEAM GENERATOR TUBES,"

DATED APRIL 28, 1995 (TAC M92251 AND M92252)

Dear Mr. Barron:

On April 28, 1995, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 95-03, "Circumferential Cracking of Steam Generator Tubes," to all l holders of operating licenses or construction permits for pressurized-water '

reactors. The NRC issued GL 95-03 for three principal reasons:

i (1) Notify addressees about the safety significance of the recent steam generator tube inspection findings at Maine Yankee Atomic Power Station.

(2) Request that all addressees implement the actions described within the geneiic letter.

(3) Require that all addressees submit to the NRC a written response regarding implementation of the requested actions.

In addition, GL 95-03 alerted addressees to the importance of performing comprehensive examinations of steam generator tubes using techniques and equipment capable of reliably detecting the types of degradation to which the steam generator tubes may be susceptible. The staff also noted that the performance of steam generator tube examinations is controlled, in part, by Appendix B to Title 10, Part 50, of the Code of Federa7 Regulations (10 CFR Part 50).

i In GL 95-03, the NRC staff also requested that licensees take the following {

actions: i (1) Evaluate recent operating experience with respect to the detection and sizing of circumferential indications to determine the applicability to l their plants.

(2) On the basis of such evaluation, as well as past inspection scope and results, susceptibility to circumferential cracking, threshold of detection, expected or inferred crack growth rates, and other relevant factors, develop a safety assessment justifying continued operation until the next scheduled steam generator tube inspections.

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H. B. Barrsn May 15, 1997 (3) Develop plans for the next steam generator tube inspections as they pertain to the detection of circumferential cracking. The inspection plans should address, but not be limited to, scope (including sample l expansion criteria, if applicable), methods, equipment, and criteria  !

(including personnel training and qualification).

To document the outcome of these actions, the NRC staff requested that addressees prepare and submit the following:

(1) A safety assessment justifying continued operation, predicated on the evaluation performed in accordance with requested actions 1 and 2 (above).

(2) A summary of the inspection plans developed in accordance with requested action 3 (above) and a schedule for the next planned inspection.

In response to GL 95-03, Duke Power Company provided letters dated June 27,  ;

Octo'oer 9, and October 25, 1995, for the McGuire Nuclear Station. These  !

submittals provided the information requested by GL 95-03; therefore, the above TAC numbers are closed. For your information, the staff's findings regarding this issue are contained in NUREG-1604, "Circumferential Cracking of Steam Generator Tubes."

If you have any questions regarding this matter, please contact me at 301-415-1484.

Sincerely, ORIGINAL SIGNED BY:

Victor Nerses, Senior Project Manager Project Directorate II-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370 cc: See next page Distribution Docket File OGC PUBLIC JJohnson, RII PDII-2 Reading PPatnaik, 0-7 E23 S. Varga CCasto, RII S. Dembek K Karwoski DOCUMENT NAME: G:\MCGUIRE\MCG92251.GL To receive a copy of this document, indicate in the box: "C" = copy without attachment / enclosure "E" = Copy.with attachment /hnclosure "N" = No copy 0FFICE DRPE\P0il-2)JH l POII 2\LA \ }\chl PDII-2% \ /l l l l NAME jmefhesWL ' LBerry M l' M8eriowf]J k /

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DATE 05//F797 05/14/97 \ 04/) 5/97 OfflCIAL RECORD COPY

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H. B. Barron l i

! (3) Develop plans for the next steam generator tube inspections as they

! pertain to the detection of circumferential cracking. The inspection

, plans should address, but not be limited to, scope (including sample i expansion criteria, if applicable), methods, equipment, and criteria

j. (including personnel training and qualification).

t' To document the outcome of these actions, the NRC staff requested that addressees prepare and submit the following:

(1) A safety assessment justifying continued operation, predicated on the j evaluation performed in accordance with requested actions 1 and 2 i (above).

(2) A summary of the inspection plans-developed in accordance with requested

-action 3 (above) and a schedule for the next planned inspection.

- In response to GL 95-03, Duke Power Company provided letters dated June 27, 1 October 9, and October 25, 1995, for the McGuire Nuclear Station. These submittals provided the information requested by GL 95-03; therefore, the above TAC numbers are closed. For your information, the staff's findings

regarding this issue are contained in NUREG-1604, "Circumferential Cracking of i Steam Generator Tubes." '

l If you have :,;ey questions regarding this matter, please contact me at 301-415-1484.

Sincerely,

~ / y Victor Nerses, Senior Project Manager Project Directorate 11-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370 cc: See next page

i l

{ McGuire Nuclear Station i- Units 1 and 2 i .

i. cc:

Mr. Paul R. Newton Mr. Dayne H. Brown, Director Duke Power Company, P805E Department of Environmental,

! 422 South Church Street Health and Natural Resources j Charlotte, North Carolina 28242-0001 Division of Radiation Protection 1 P. O. Box 27687 j County Manager of Mecklenberg County Raleigh, North Carolina 27611-7687

720 East Fourth Street j Charlotte, North Carolina 28202 Ms. Karen E. Long Assistant Attorney General i Mr. Michael T. Cash North Carolina Department of l j Regulatory Compliance Manager Justice l McGuire Nuclear Station P. O. Box 629 Duke Power Company Raleigh, North Carolina 27602 12700 Hagers Ferry Road Huntersville, North Carolina 28078- Mr. G. A. Copp 8985 Licensing - EC050 Duke Power Company J. Michael McGarry, III, Esquire 526 South Church Street Winston and Strawn Charlotte, North Carolina 28242-1400 L Street, NW. 0001

< Washington, DC 20005 Regional Administrator, Region II Senior Resident Inspector U.S. Nuclear Regulatory Commission c/o U. S. Nuclear Regulatory , Atlanta Federal Center Commission 61 Forsyth Street, S.W., Suite 23T85 12700 Hagers Ferry Road Atlanta, Georgia 30303 Huntersville, North Carolina 28078 Elaine Wathen, Lead REP Planner Mr. T. Richard Puryear Division of Emergency Management Owner's Group (NCEMC) 116 West Jones Street Duke Power Company Raleigh, North Carolina 27603-1335 4800 Concord Road York, South Carolina 29745 Mr. H. B. Barron Vice President, McGuire Site Dr. John M. Barry Duke Power Company Mecklenberg County 12700 Hagers Ferry Road Department of Environmental Huntersv111e, North Carolina 28078 Protection 700 N. Tryon Street Charlotte, North Carolina 28202 l

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