ML19290B676

Forwards Revision 3 Pages to GE Rept 22A4365, Interim Containment Loads Rept - Mark III Containment. Proprietary Version Withheld (Ref 10CFR2.790)

ML19290B676
Person / Time
Site:	05000447
Issue date:	11/30/1979
From:	Sherwood G GENERAL ELECTRIC CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML19290B677	List: ML19290B676 ML19290B680
References
MFN-288-79, NUDOCS 7912130493
Download: ML19290B676 (2)

Text

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S Y S T E t,i S DIVISION GENERAL ELEC1HlC COMPANY,175 CURTNER AVE.. SAN JOSE, CAUFORN:A 05105 MC 682, (408) 925-5010 MFN-288-79

, m .= v e v m w.. :. . c_:. d y November 30, 1979 U.S. Nuclear Regulatory Commission Office of Nuclear P.eactor Regulaticr.

Washington, D.C. 20555 Attention: Mr. Harold R. Denton, Director Gentlemen:

Project: 238 Nuclear Island (NI) GESSAR - Docket No. STU-50-447

SUBJECT:

GENERAL ELECTRIC REPORT 22M365, " INTERIM CONTAINMENT LOADS REPORT - MARK III CONTAIMMEl'T," REV. 3, DAT ED NOVEMBER 1979

References:

1) General Electric Report 22M355, " Interim Containment Loads Report - Mark III Containment, Rev. 1, dated April 1978," transmitted by G. G. S5erwood letter to Case, dated April 21, 1978

2) Genc.ral Electric Report 22A4365, " Interim Containment Loads Report - Mark III Containment," Rev. 2, dated November 1978, transmitted by G. G. Sherwoed letter to Denton, dated November 15, 1978 The information document provided by References 1 and 2 has been utilized by CE to keep the NRC, ACRS, and all Mark III applicants apprised of the current status of loading conditions throughout the Mark III Confirmatory Test Program. The purpose of this letter is to transmit for your infor-mation twenty-five (25) copics of revised pages for Report 22A4365 and its proprietary supplement, 22M3G5AB. These revised pages (Rev. 3) should be inserted into the Reference 2 document (ICLR, Rev. 2) previcusly transmitted. In addition to miscellaneous editorial and clarification changes, this revision includes the following technical changts:

1. Addition of submarged structure loading information ja place of that previously contained in /,ttechrnt G.

2. Correction of the emplitude for the pre-chug underpressure.

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GEllER AL [j ELECTRIC Harold R. Denton November 30, 1979 Page P.

3. Updat'ing of the load sequence bar charts to clarify incon-sistencies between those provided in the various sections of

< the report.

So that you may readily identify the differences between Revisions 1, 2, and 3, vertical bars have been placed in the margins of each page adjacent to the new or revised material.

The page changes to Report Supplement 22A4365AB contain information which General Electric customarily maintains in confidence and with-holds frca public disclosure. The information has been handled and classified proprietary by General Electric as indicated in the affidavit attached to the Reference 2 transmittal and the request is hereby made that the page changes to 22A4365AB be withheld from public disclosure in accordance with provisions of 10CFR2.790.

It should be noted that, as with the initial issue of Report 22A4365, this revision is not being submitted by General Electric as a replace-ment for GESSAR, Appendix 3B, Part 1. The GESSAR information, in our judgement, continues to be an acceptable basis for PSAR reviews.

Separate documentation will be submitted for FSAR reviews.

Any questions regarding the technical concent of this report should be directed to L. J. Sobon, Manager, BWR Containment Licensing, (408) 925-3495.

Very truly yours,

/ ) N

([ennG.Sherwood, Manager Safety and Licensing Operation GGS:bjr/1034-35 1554 002 cc: W. F. Kane W. R. Butler J. A. Kedrick M. Fields R. P. Denise L. S. Gifford, GE, Betnesda

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