ML17262A364

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Responds to Item I.D of NRC Bulletin 88-011, Pressurizer Surge Line Thermal Stratification
ML17262A364
Person / Time
Site: Ginna Constellation icon.png
Issue date: 02/08/1991
From: Mecredy R
ROCHESTER GAS & ELECTRIC CORP.
To: Andrea Johnson
Office of Nuclear Reactor Regulation
References
IEB-88-011, IEB-88-11, NUDOCS 9102140087
Download: ML17262A364 (6)


Text

ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM

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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9102140087 DOC.DATE: 91/02/08 NOTARIZED: NO FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G

AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.

Rochester Gas S Electric Corp.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

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SUBJECT:

Responds to Item I.d of NRC Bulletin 88-011, "Pressurizer Surge Line Thermal Stratifiaction."

DISTRIBUTION CODE: IE30D COPIES RECEIVED: LTR

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GZ TITLE: Bulletin 88-11 Pressurizer Surge Line Thermal Stratificataon NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).

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NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOiVI Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISI RIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

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89 EAST AVENUE, ROCHESTER N. Y. 14649-0001+a 't ROBERTC MECREDY Vice Rrerident Cinna Nuclear Production February 8,

1991 TELEPHONE mEa, cooET ts 6ri6.2700

'U.S. Nuclear Regulatory Commission Document Control Desk Attn:

Allen R.. Johnson Project Directorate I-3 Washington, DC 20555

Subject:

Response

to NRC Bulletin 88-11 Pressurizer Surge Line Thermal Stratification dated December -20, 1988 R. E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Johnson,

The purpose of this letter is to respond to Item I.d of NRC Bulletin 88-11, dated December 20, 1988.

RG&E has initiated a program to complete the plant specific evaluation of the Ginna surge line for design life.

The Westinghouse Owners Group (WOG) generic detailed analysis was completed in July and NRC review occurred in a

meeting in Pittsburgh on November 8 and 9, 1990. At that meeting, Westinghouse requested a delay in the schedule to allow for completion of on-going

work, review by appropriate
parties, preparation of transmittal
letters, and submittal of reports to utilities.

Westinghouse 'plans to submit the final report to RG&E by May 30, 1991.

RG&E will review the Westinghouse analysis and determine if there are modifications required to the existing surge line supporting scheme.

To allow for RG&E review of this report and to make the necessary design change assessments, we anticipate an NRC submittal date, of October 30, 1991.

The Westinghouse Generic detailed analysis WCAP-12277 showed that subsequent to June 1989 the generic justification for continued operation (JCO) was valid for 10 heatup/cooldown cycles.

RG&E is therefore aware that a JCO will have to be submitted to the NRC should we reach the 10 heatup/cooldown cycles prior to the submittal date of this report.

Very truly yours, Robert C. Mecredy DVMN139 9'l02140087 910208 PDR AGOCK 05000244 9

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Mr. Allen R. Johnson (Mail Stop 14D1)

Project Directorate I-3 Washington, DC 20555 U.S. Nuclear Regulatory Commission Region 1

475 Allendale Road King of Prussia, PA 19406 Ginna Senior Resident Inspector

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