ML18012A778

Discusses Completion of Licensing Action for GL 95-03, Circumferential Cracking of SG Tubes. TAC M92246 Closed

ML18012A778
Person / Time
Site:	Harris
Issue date:	05/13/1997
From:	Le N NRC (Affiliation Not Assigned)
To:	Robinson W CAROLINA POWER & LIGHT CO.
References
GL-95-03, GL-95-3, TAC-M92246, NUDOCS 9705150335
Download: ML18012A778 (5)

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R~ Robinson, Vice President Shearon Harris Nuclear Power Plant Carolina Power

& Light Company Post Office Box 165 - Mail Code:

Zone 1

New Hill, North Carolina 27562-0165 UNITED STATES NUCLEAR REGULATORY COMIVIISSION WASHINGTON, D.O. 205554001 May 13, 1997

SUBJECT:

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

DATED APRIL 28,

1995, FOR SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 (TAC N0.92246)

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 holders of operating licenses or construction permits for pressurized-water reactors.

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

(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 generic 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 Federal Regulations (10 CFR Part 50).

In GL 95-03, the NRC staff also requested that licensees take the following actions:

(1)

Evaluate recent operating experience with respect to the detection and sizing of circumferential indications to determine the applicability to their plants.

(2)

(3)

On the basis of the evaluation in Item (1) above, 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 operati.on until the next scheduled steam generator tube inspections.

ml Develop plans for the next steam generator tube inspections as they pertain to the detection of circumferential cracking.

The inspection 9705150335 9705i3

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

methods, equipment, and criteria (including personnel tr aining 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,'ou provided letters dated June 27 and October 11, 1995, for Shearon Harris Nuclear Power Plant, Unit 1

(SHNPP).

These submittals provided the information requested by GL 95-03; therefore TAC No.

92246 is 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 your NRR Project Manager, Ngoc B. Le, at (301) 415-1458.

Docket No. 50-400 cc:

See next page DISTRIBUTION J) ocket=F:i=1.e PUBLIC PD II-1 Rdg S.

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HARRIS HAR92246.LTR Sincerely, Original Signed By) goc B. Le, Project Manager Project Directorate II-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation COPY e

No OFFICE PM: PDI I-1 NAME NLe DATE 5

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R. Robinson Carolina Power

& Light Company Shearon Harris Nuclear Power Plant Unit 1

CC:

Mr.'William D. Johnson Vice President and Senior Counsel Carolina Power

& Light Company Post Office Box 1551

Raleigh, North Carolina 27602 Resident Inspector/Harris NPS c/o U.S. Nuclear Regulatory Commission 5421 Shearon Harris Road

'ew Hill, North Carolina 27562-9998 Ms. Karen E.

Long Assistant Attorney General State of North Carolina Post Office Box,629

Raleigh, North Carolina 27602 Public Service Commission State of South Carolina Post Office Drawer 11649

Columbia, South Carolina 29211 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303 Hr. Hel Fry, Acting Director Division of Radiation Protection N.C. Department of Environment, Health and Natural Resources 3825 Barrett Dr.

Raleigh,-North Carolina 27609-7721 Hr. T. D. Walt Director Operations

& Environmental Support Department Carolina Power

& Light Company 412 S. Wilmington Street

Raleigh, North.Carolina 27601 Hr.

Bo Clark Plant General Manager Harris Plant Carolina Power

& Light Company Shearon Harris Nuclear Power Plant P.O.

Box 165 New Hill, North Carolina 27562-0165 Hr. J.

W. Donahue Director of Site Operations Carolina Power

& Light Company Shearon Harris Nuclear Power Plant Post Office Box 165, MC: Zone 1

New Hill, North Carolina 27562-0165 Mr. Robert P. Gruber Executive Director Public Staff NCUC Post Office Box 29520

Raleigh, North Carolina 27626 Chairman of the North Carolina Utilities Commission Post Office Box 29510 Raleigh, North Carolina 27626-0510 Ms.

D. B. Alexander, Supervisor Licensing/Regulatory Programs Carolina Power

& Light Company Shearon Harris Nuclear. Power Plant P. 0.

Box 165, Hail Zone 1

New Hill, North Carol ina 27562-0165 Mr. Stewart Adcock, Chairman Board of County Commissioners

'of Wake County P. 0.

Box 550

'aleigh,

'North Carolina 27602 Margaret Bryant Pollard, Chairman Board of County Commissioners of Chatham County P. 0.

Box 87 Pittsboro, No'rth Carolina 27312 Hr. Milton Shymlock U.S. Nuclear Regulatory Comm.

Atlanta Federal Center 61 Forsyth St.,

SW, Suite 23T85 Atlanta, Georgia 30303

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