ML17263A407

Requests Unirradiated Charpy Use for Each Gorging or Unirradiated Charpy Use & Analysis from Forgings & Welds That Were Fabricated Using Same Vendor,Fabrication Timeframe,Fabrication Process & Matl Specification

ML17263A407
Person / Time
Site:	Ginna
Issue date:	09/24/1993
From:	Andrea Johnson Office of Nuclear Reactor Regulation
To:	Mecredy R ROCHESTER GAS & ELECTRIC CORP.
References
GL-92-01, GL-92-1, TAC-M83733, NUDOCS 9310050293
Download: ML17263A407 (6)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555 0001 September 24, 1993 Docket No. 50-244 Dr. Robert C. Necredy Vice President, Nuclear Production Rochester Gas and Electric Corporation 89 East Avenue Rochester, New York 14649

SUBJECT:

REACTOR VESSEL STRUCTURAL INTEGRITY - REQUEST FOR ADDITIONAL INFORMATION (RAI) (TAC NO. M83733)

Your response to Generic Letter (GL) 92-01, Question 2a, does not specify unirradiated upper-shelf energy (USE) values for beltline forgings 125P666VA1 and 123P118VA1, or beltline welds SA-1101 and SA-848.

Please provide the unirradiated Charpy USE for each forging or provide the unirradiated Charpy USE and analysis from forgings and welds that were fabricated using the same vendor, fabrication timeframe, fabrication process, and material specification to demonstrate that the forgings and welds will meet the USE requirements of Appendix G, 10 CFR Part 50. If this cannot be

provided, please submit an analysis which demonstrates that lower values of USE will provide margins of safety against fracture equivalent to those required by Appendix G of the ASME Code.

Your response to GL 92-01, Question 2b, did not provide a copper chemical composition value for forging 123P118VA1.

Please provide this value for the forging.

There is a discrepancy between surveillance capsule fluence values reported in response to GL 92-01 and values reported in earlier surveillance reports as follows:

GL 92-01 Res onse Fluence Surveillance Re o t Fluence 6.53E18 n/cm 1.02E19 n/cm 1.78E19 n/cm 4.9E18 n/cm (report FP-RA-1) 7.6E18 n/cm (report WCAP-8421) 1.75E19 n/cm (report WCAP-10086)

Please resolve this discrepancy in fluence values and provide a single fluence to characterize the neutron irradiation exposure for each capsule.

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Robert C. Hecredy September 24, 1993 The requirements of this letter affect fewer than 10 respondents,

and, therefore, are not subject to the Office of Management and Budget review under P.L.96-511.

Please respond to our RAI within 60 days of receipt of this letter.

Sincerely, cc:

See next page DISTRIBUTION:

(Docket File)

NRC

& Local PDRs PDI-3 Reading SVarga JCalvo WButler SLittle AJohnson OGC ACRS (10)

JLinville, RI JStrosnider JWiggins BElliot DMcDonald VMcCree WLazarus Allen R. Johnson, Project Manager Project Directorate I-3 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation OFFICE DATE LA PDI SLit le 93 PM:PDI-3 AJohnson:mw 93 D:PDI-3 WButler 93 OFFICIAL RECORD COPY FILENAME: GIH83733. RAI

Robert C. Hecredy September 24, 1993 The requirements of this letter affect fewer than 10 respondents,

and, therefore, are not subject to the Office of Hanagement and Budget review under P.L.96-511.

Please respond to our RAI within 60 days of receipt of this letter.

Sincerely, cc:

See next page Alle'n R. Johnson Project Hanager Project Direct ate I-3 Divisio eactor Projects I/II Office of Nuclear Reactor Regulation

Dr. Robert C. Hecredy 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 Hs. 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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