ML030640068

Memo, Note to File Conference Call on 6/13/02 Re Performance of Volumetric Examinations of socket-welded Connections and Branch Connections Welds

ML030640068
Person / Time
Site:	Surry, North Anna
Issue date:	03/05/2003
From:	Gratton C NRC/NRR/DLPM/LPD2
To:	John Nakoski NRC/NRR/DLPM/LPD2
Gratton C, NRR/DLPM 415-1055
References
TAC MB5437, TAC MB5438, TAC MB5439, TAC MB5440
Download: ML030640068 (3)

Text

March 5, 2003 MEMORANDUM TO: John A. Nakoski, Chief, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation FROM: Christopher Gratton, Sr. Project Manager, Section 1 Project Directorate II /RA/

Division of Licensing Project Management Office of Nuclear Reactor Regulation

SUBJECT:

NORTH ANNA POWER STATION, UNITS 1 AND 2, AND SURRY POWER STATION, UNITS 1 AND 2 - FACSIMILE TRANSMISSION OF ISSUES DISCUSSED IN A CONFERENCE CALL (TAC NOS. MB5437, MB5438, MB5439, AND MB5440)

A facsimile of the attached questions was transmitted on January 20, 2003, to Mr. Gary Miller of Virginia Electric and Power Company. The questions were transmitted to support an upcoming conference call with the licensee regarding the licensees submittal dated June 13, 2002. In their submittal, the licensee proposed to seek relief from the requirements regarding the performance of volumetric examinations of socket-welded connections and branch connection welds. This memorandum and the attached questions do not convey or represent an NRC staff position regarding the licensees request.

Docket Nos. 50-338, 50-339, 50-280, and 50-281

Attachment:

Request for Additional Information CONTACT: Christopher Gratton, NRR (301) 415-1055

ML030640068 OFFICE PM/PD2-1 LA/PD2-2 SC/PD2-1 NAME CGratton EDunnington JNakoski DATE 3/4/03 3/4/03 3/4/03 DRAFT REQUESTS FOR ADDITIONAL INFORMATION RELIEF REQUEST R-1 RISK INFORMED INSERVICE INSPECTION FOR VIRGINIA ELECTRIC POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 NORTH ANNA POWER STATION UNITS 1 AND 2 DOCKET NUMBERS: 50-280/281 AND 50-338/339 The following questions relate to Virginia Electric and Power Companys Risk-Informed ISI Relief Request R-1 for North Anna Power Station Units 1 and 2, and Surry Power Station, Units 1 and 2. The questions were authored by the Probabilistic Safety Assessment Branch.

1. Please provide a list of segments and locations for which relief is being requested.

Please identify why each location was originally selected for inspection.

2. Are there any other locations within these high safety-significant segments that can be volumetrically inspected? If so, why are you not proposing to select these locations instead of the locations currently selected?

3. How was the inspection of these locations reflected in the calculations that were compared to the acceptability guidelines provided on page 214 (Section 4.4.2) of the WCAP-14572, Rev. 1-NP-A?

4. If the inspection of these locations is reflected in the original calculations, please provide the new results reflecting the discontinuation of inspections in these locations and compare them to the acceptability guidelines.

ATTACHMENT