ML20058P793

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Forwards Proprietary Responses to NRC Request for Addl Info Re AP600 RCS Leak PRA Evaluation. Affidavit for Withholding Encl.Proprietary Rept Withheld,Per 10CFR2.790. Also See 9809290076
ML20058P793
Person / Time
Site: 05200003
Issue date: 10/20/1993
From: Liparulo N
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To: Borchardt R
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19311B133 List:
References
ET-NRC-93-3990, NUDOCS 9310250230
Download: ML20058P793 (2)


Text

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Westinghouse Energy Systems Box 355 Electric Corporation P:ttstuen Pennsvivania 15230 cats ET-NRC-93-3990 NSRA-APSI 93-0392 Docket No.: STN-52-003 October 20,1993 Document Control Desk U. S. Nuclear Regulatory Commission Washington, D.C. 20555 A7TENTION: MR. R. W. BORCHARDT

SUBJECT:

AP600 PROPRIETARY RESPONSES TO NRC REQUESTS FOR ADDITIONAL -

INFORMATION

Dear Mr. Borchardt:

Enclosed are copics of three documents referenced in several RAI responses pertaining to the AP600 PRA. The enclosures include:

1. "AP600 Reactor Coolant System leak PRA Evaluation," October 1"93 [ Proprietary]
2. MAAP 4 Subroutine Creep Description
3. Finite Element Analysis and Comparison Information in Support of RAI 720.221 The "AP600 Reactor Coolant System Leak PRA Evaluation" report documents the RCS leakage PRA evaluation referenced in RAI 720.090. The MAAP 4 subroutine description and the finite element analysis and comparison documents are referenced in RAI 720.221.

Enclosed with Mr. Hasselberg's copy of this letter is one copy of the three documents.

The Westinghouse Electric Corporation copyright notice, proprietary information notice, application for withholding and affidavit are also attached.

This submittal contains Westinghouse proprietary information consisting of trade secrets, commercial information or financial information which we consider privileged or confidential pursuant to 10CFR2.790. Therefore, it is requested that the Westinghouse proprietary information attached hereto be handled on a confidential basis and be withheld from public disclosures.

This material is for your internal use only and may be used for the purpose for which it is submitted.

It should not be otherwise used, disclosed, duplicated, or disseminated, in whole or in part, to any other person or organization outside the Commission, the Office of Nuclear Regulation or the Office ,_

of Nuclear Regulatory Research without express written approval of Westinghouse.

250120 A' C4 9 1 250230.931020 PDR ADOCK 05200003 9 hf A PDR 6

r-l ET-NRC-93-39'X)

NSRA-APSI,93-0392 October 20,1993 Correspondence with respect to the application for withholding should reference .AW-93-537, and -

should be addressed to N. J. Liparulo, Manager of Nuclear Safety and Regulatory Activitics,-

Westinghouse Electric Corporation, P.O. Box 355, Pittsburgh, Pennsylvania, 15230-0355.

Please contact Brian A. McIntyre on (412) 374-4334 if you have any questions concerning this transtnittal.

0~.

N.J Li; rulo, Manage A

Nuclear Safety & Regulatory Activitics

/nja Enclosures Attachments cc: T. Kenyon, NRC (w.o Enclosures / Attachments)

R. Hasselberg, NRC B.A. McIntyre, Westinghou.se (w/o Enclosures / Attachments) i I?A6A