ML17262B124

Discusses Westinghouse Reassessment of MPA X802 (Bulletin 88-002).Corrective Actions Resolved Issues Noted in Bulletin

ML17262B124
Person / Time
Site:	Ginna
Issue date:	12/22/1992
From:	Andrea Johnson Office of Nuclear Reactor Regulation
To:	Mecredy R ROCHESTER GAS & ELECTRIC CORP.
References
IEB-88-002, IEB-88-2, TAC-M67308, NUDOCS 9212300392
Download: ML17262B124 (8)

Text

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UNITEDSTATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 December 22, 1992 Docket No. 50-244 Dr. Robert C. Hecredy Vice President, Nuclear Production Rochester Gas

& Electric Corporation 89 East Avenue Rochester, New York.

14649

SUBJECT:

WESTINGHOUSE REASSESSMENT OF HPA X802 (Bulletin 88-02),

R.E.

GINNA NUCLEAR POWER PLANT (TAC NO. M67308)

R.E.

Ginna was identified by Westinghouse as one of the plants requiring an update of the steam generator tube fatigue evaluations performed by Westinghouse in response to NRC Bulletin 88-02.

The update was required as a

result of NRC staff concerns regarding the accuracy of the anti-vibration bar insertion depth estimates and the associated flow peaking factor estimates.

Your letter of March 2,

1992, provided the reassessment which identified two additional tubes in both steam generators "A" and "B" which required preventative action.

You advised that all of the identified tubes have been plugged with leakage limiting plugs.

During my telephone conversation with Hr. George Wrobel of your staff on December 4,

1992, it was confirmed that the following steam generator tubes were plugged during refueling outage

¹22 (March 27, 1992 Hay 7, 1992),

Steam Generator "A" tubes R12Cll and R13Cll; Steam Generator "B" tubes RllC46 and R13C89.

Additionally, the following steam generator tubes were previously identified as requiring action, and were repaired during refueling outage

¹21 (March 22, 1991 - Hay ll, 1991),

Steam Generator "A" tubes R13C5 and R13C6; Steam Generator "B" tube RllC73.

The staff concludes that your actions resolve the issues identified in Bulletin 88-02 and are, therefore, acceptable.

This finding is subject to the development of administrative controls by you to ensure that updated stress ratio and fatigue usage calculations are performed in the event of any significant changes to the steam generator operating parameters (e.g.,

steam pressure and flow, circulation ratio) relative to those assumed in the WCAP analysis.

Implementation of the additional administrative controls may be subject to verification by an NRC staff inspection.

If, for any reason, you do not plan to implement such administrative controls, please advise us within 30 days of receipt of this letter.

92i2300392 9212223 PDR ADOCK 05000244 8

PD iso

Dr. Robert C. Mecredy December 22, 1992 Your facility is no longer subject to the enhanced primary-to-secondary leak rate monitoring program required by item C. I of the bulletin.

This completes our action on this issue and closes TAC No. H67308.

Sincerely, cc:

See next page DISTRIBUTION:

Docket-Fil e 50-244 NRC

5. Local PDRs PDI-3 Reading S.

Varga J.

Calvo W. Butler T. Clark R. Skokowski A. Johnson OGC ACRS (10)

J. Linville, RI F. Williams H. Conrad Original signed by Allen R. Johnson, Project Manager Project Directorate I-3 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation OFFICE LA:PD PDI-3 PH: PDI-3 EHCB D: PDI-3 IIAME RSkokows i AJohnson:mw J. St~os~tc4<

WButler DATE 92 rz-W/92 EZ/>>/92 i 2 zl/92 OFFICIAL RECORD COPY FILENAME: A:iGIH67308. CL

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Dr. Robert C. Mecredy December 22, i992 Your facility is no longer subject to the enhanced primary-to-secondary leak rate monitoring program required by item C. I of the bulletin.

This completes our action on this issue and closes TAC No. M67308.

Sincerely, cc:

See next page Allen

. Johnso

, Project Manager Project rate I-3 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

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Dr. Robert C. Mecredy R.E. Ginna Nuclear Power Plant CC:

Thomas A. Hoslak, Senior Resident Inspector R.E. Ginna Plant U.S. Nuclear Regulatory Commission 1503 Lake Road

Ontario, New York 14519 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Hs.

Donna Ross Division of Policy Analysis 5 Planning New York State Energy Office Agency Building 2 Empire State Plaza

Albany, New York 12223 Charlie Donaldson, Esq.

Assistant Attorney General New York Department of Law 120 Broadway New York, New York 10271 Nicholas S. Reynolds Winston

& Strawn 1400 L St.

N.W.

Washington, DC 20005-3502 Ms. Thelma Wideman

Director, Wayne County Emergency Management Office Wayne County Emergency Operations Center 7370 Route 31

Lyons, New York 14489 Ms. Mary Louise Meisenzahl Administrator, Monroe County Office of Emergency Preparedness 111 West Fall

Road, Room 11 Rochester, New York 14620

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