ML20128F941

Forwards SE Authorizing Licensee 910930 Request Not to Perform Code Exam on 100% of Attachment Welds on Stabilizer Brackets to Reactor Vessel Under 10CFR50.55a(a)(3)(ii)

ML20128F941
Person / Time
Site:	Quad Cities
Issue date:	02/10/1993
From:	Dyer J Office of Nuclear Reactor Regulation
To:	Kovach T COMMONWEALTH EDISON CO.
Shared Package
ML20128F946	List: ML20128F941 ML20128F973
References
TAC-M81799, TAC-M81800, NUDOCS 9302120087
Download: ML20128F941 (2)

Text

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February 10, 1993 f

Docket No. 50-254' DISTRIRTION: PDill-2 p/f and 50-265 Docket File NRC & Local'PDRs PDill-2 r/f J. Roe Mr. Thomas J. Kovach J. Zwolinski J. Dyer Nuclear Licensing Manager C. Moore C. Patel Commonwealth Edison Company-Suite 300 OGC D. Smith OPUS West 111 T. McLellan ACRS (10) 1400 OPUS Place OC/LFDCB B. Clayton Rlll Downers Grove, Illinois 60515 E. Rossi E. Jordan

SUBJECT:

REllEF REQUEST NUMBER CR-15 FOR QUA9 CITIES, UN11S 1 AND 2 (TAC NOS. M81799 AND M81800)

By letter dated September 30, 1991, as supplemented on March 12, 1992, and August 28, 1992, you requested relief (Relief Request Number CR-16) from the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Code) Section XI. This relief is related to the surface examination of the attachment welds between the reactor vessel and the reactor vessel stabilizer brackets.

The staff has reviewed and evaluated your request and the sue m rting information provided, and concluded that you have demonstrate that the Code required 100% surface examination of the attachment welds of the stabilizer brackets to the reactor vessel would result in a hardship or would be unusually difficult to perform. The staff also concluded that the proposed alternative examination should provide reasonable assurance of the structural integrity of the reactor vessel stabilizer brackets. Therefore, pursuant to 10 CFR 50.55a(a)(3)(ii), your request for not performing the Code examinations on 100% of the attachment welds on the stabilizer brackets .o the reactor vessel may be authorized. A copy of the staff's safety evaluation related to this relief is enclosed.

Sincerely, Original signed by:

James E. Dyer, Director Project Directorate III-2 Division of Reactor Projects - Ill/IV/V Office of Nuclear Reactor Regulation cc: See next page

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OFC j' I-2 lPM:PDlll-2 lD:PDill-2 4 l 0G44c/ M"'"^l NAME l lCPATEL: jar lJDYER V ll ;2/

MJg /ra,wf l DATE l /93  !.2 / f /93 12 fo /93 /93 l 9302120087 930210 i PDR ADOCK 05000254 jh-P PDR \

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I' Mr. Thomas- J. Kovach Quad. Cities Nuclear Power Station Commonwealth Edison Company = Unit Nos. l'and 2 cc:

Mr. Stephen'E. Shelton Vice President Iowa-Illinois Gas and Electric Company P. O. Box 4350 Davenport, Iowa 52808 Michael I. Hiller, Esquire Sidley and Austin One First National Plaza Chicago, Illinois 60690 Mr. Richard Bax Station Manager Quad Cities Nuclear Power Station 22710 206th Avenue North Cordova, Illinois 61242 Resident Inspector U. S. Nuclear Regulatory Commission 22712 206th Avenue North Cordova, Illinois 61242 Chairman Rock Island County Board--

of Supervisors 1504 3rd Avenue Rock Island County Office Bldg.

Rock Island, Illinois 61201 Illinois Department of Nuclear Safety .

Office of Nuclear Facility-Safety- <

1035.0 uter-Park Drive Springfield, Illinois 62704 Regional Administrator, Region III-U. S. Nuclear Regulatory Commission 799 Roosevelt Road, Bldg. #4 Glen Ellyn, Illinois 60137-Robert'Neumann Office of Public Counsel State of Illinois Center 100 W. Randolph:

Suite 11-300 Chicago, Illinois 60601

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