ML20078F427

Provides Info for Closure of ABWR FSER Confirmatory Item F1.2.2-2 Previously Addressed in 941222 Closure Ltr

ML20078F427
Person / Time
Site:	05200001
Issue date:	01/26/1995
From:	Fox J GENERAL ELECTRIC CO.
To:	Borchardt R NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
References
MFN-007-95, MFN-7-95, NUDOCS 9502020103
Download: ML20078F427 (2)

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GE Nachar Energy General Dectnc Companv 115 Curtner Annue, San Jose. CA 95125 January 26,1995 MFN No. 007-95 Docket No.52-001 Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Attention: R.W. Borchardt, Director Standardization Project Directorate Associate Directorate for Advanced Reactors and License Renewal OfIice of Nuclear Reactor Regulation

Subject:

Closure of ABWR FSER Confirmatory Item Fl.2.2-2

Reference:

1. Joseph F. Quirk to R.W. Borchardt, Closure of ABWR FSER Confirmatory Items, MFN No.164-94, dated December 22,1994.

2. Jack N. Fox to R.W. Borchardt, Submittal of Revision 2 to the ABWR Design Control Document, MFN No. 004-95, datedJanuary 17,1995.

The purpose of this letter is to provide information for.the closure of the subject confirmatory item previously addressed in the December 22,1994 closure letter (Reference 1).

Current Conneuration Supportine Design Certification The current configuration supporting design certification (DC) is Revision 2 of  ;

the Design Control Document (DCD) transmitted to the NRC onJanuary 17, 1995 (Reference 2). ' The DCD is composed of an Introduction, Tier 1 (Certified Design Material) and Tier 2 (Approved Safety Analysis Material). .l l

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design Documentation Supoorting Design Certification Revision 2 of the DCD controls the design documentation implementing the NRC-approved design. The pre-existing engineering documentation (i.e., the Common Engineering Documents (CEDs] and Design Action List [DAL])

. have been used to develop Tier 1 and Tier 2 material. The DAL documents the

. changes that occurred in developing the DCD from the CEDs. All DAL items were incorporated into Revision 2 of the DCD.

. The ABWR Certification Program Master Parts List (MPL) includes a complete list of all ABWR Certificadon documents including CEDs and the DAL The MPL of record, captures the CEDs and DAL items supporting design certification. Thus, GE maintains records of the MPL that support the issuance of the design certification rule. The MPL, coupled with procedures for detailed desi;n work that require conformance with the DCD, provide controls that ensure the development of the detailed design documents will conform to the NRC-approved design. Although changes can occur as described in the following paragraph, these changes are traceable through MPL issuance procedures which allow retrievability of the design documentation supporting design certification.

Control of Changes After Design Certification There may be proposed changes to Tier 2 of the DCD which would clearly result in a substantial benefit in safety, reliability, or economy. Those proposed changes will be " inventoried" by GE, for future consideration by a COL applicant. These proposed changes to be inventoried include those that are the result of alignment with the EPRI Utility Requirements Document using the same threshold (would clearly result in a substantial benefit in safety, reliability, or economy). COL applicants and licensees can make facility-specific Tier 2-type changes if such changes qualify under the 50.59-like process. All changes to the DCD are governed by the change process in the design certification rule.

Sincerely, J ck N. Fox WR Certification Program 4