ML17347A751

Part 21 Rept Re Component Cooling Water Sys Containment Isolation Function.Addl Evaluation of Issue in Progress as Part of Util Design Basis Effort.Ltr Sent as Formal Followup to Feb 1988 Discussion

ML17347A751
Person / Time
Site:	Turkey Point
Issue date:	05/02/1988
From:	Conway W FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
REF-PT21-88, REF-PT21-88-068-000 L-88-196, PT21-88-068-000, PT21-88-68, NUDOCS 8805090198
Download: ML17347A751 (5)

Text

giOELERATED DIPXBUTION DEMONSTRAON SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8805090198 DOC.DATE: 88/05/02 NOTARIZED: NO DOCKET g FACIL:50-250 Turkey Point Plant, Unit 3, Florida Power and Light C 05000250 50-251 Turkey Point Plant, Unit 4, Florida Power and Light C 05000251 AUTH. NAME AUTHOR AFFILIATION CONWAY,W.F. Florida Power 6 Light Co.

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

SUBJECT:

Part 21 rept re component cooling water sys containment isolation function.

DISTRIBUTION CODE: IE19D COPIES RECEIVED:LTR TITLE: Part 21 Rept (50 DKT)

~ ENCL g SIZE:

S NOTES'ECIPIENT RECIPIENT COPIES COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA PD2-2 PD A EDISON,G INTERNAL: AEOD/DOA AEOD/DS P/TPAB ARM TECH ADV NRR CRUTCHFIELD NRR VARGA,S NRR/DEST/ADE 8H NRR/DEST/ADS 7E NRR/DLPQ/QAB 10 NRR/DOEA/EAB 11 NRR/DOEA/GCB 11 NRR/DRIS/VIB 9D NRR S LRB12 NUDOCS-ABSTRACT G FIL 01 RES DEPY GI DE/EIB RGNl RGN2 RGN3 RGN4 RGN5 EXTERNAL: INPO RECORD CTR LPDR NRC PDR NSIC SILVER,E S

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'A TOTAL NUMBER OF COPIES REQUIRED: LTTR 28 ENCL 2

P. O. X 14000, JUNO BEACH, FL 33408.0420

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MAY 0 2 1988 L-88-196 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: Turkey Point. Units 3 and 4 Docket Nos. 50-250 and 50-251 CCW Containment Isolation Function On June 18, 1987, in a letter from Mr. W. J. Johnson to Carl Berlinger, Westinghouse Electric Corporation notified the NRC of a reportable item pursuant. to 10 CFR Part 21 associated with a previously recommended modification to the component "cooling water system (CCWS). In a letter to Mr. R. C.

DeYoung dated July 13, 1984, Westinghouse had reported a potential overpressure condition in the CCWS designed by Westinghouse. Each affected utility was notified by letter of this potential overpressure condition and recommendations were made for plant modifications.

As part of our review of the 1984 Westinghouse letter, FPL performed an analysis which demonstrated that the piping stress levels resulting from the postulated overpressurization event would not exceed stress allowables and concluded the CCWS would be capable of performing its safety function during this transient. While a change package had been prepared to alter the CCW surge tank vent design, this design change was stopped based on information provided by our Design Basis effort regarding the possible containment 'solation function of the CCW surge tank vent valve. Westinghouse's 1987 notification was received subsequently. Additional evaluations of this issue are in progress as part of our Design Basis effort.

The actions described above were discussed with Mr. R. Anand of your staff on February 17, 1988. This letter is sent as a formal follow-up to our February 1988 discussion.

p/Clg s 0 3805090i98 880502 an FPL Group company

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U. S. Nuclear Regulatory Commission L-88-196 Page two If there should be any questions, please call us.

Very truly yours, W. F. COP}

Acting Gro Vice President Nuclear Energy WFC/TCG/gp cc: Dr. J. Nelson Grace, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant TCG.CCW

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