ML20199E200

Forwards Insp Rept 99900404/97-02 on 971117-21 & Notice of Nonconformance

ML20199E200
Person / Time
Site:	05200003
Issue date:	01/28/1998
From:	Black S NRC (Affiliation Not Assigned)
To:	Liparulo N WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
Shared Package
ML20199E204	List: ML20199E200 ML20199E256 ML20199E285
References
REF-QA-99900404 99900404-97-02, 99900404-97-2, NUDOCS 9802020106
Download: ML20199E200 (3)

Text

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/ January 28, 1998 Mr. Nicholas J. Liparulo, Manager Nuclear Safety and Regulatory Activities Nuclear and Advanced Technology Division Westinghouse Electric Corporation P.O. Box 355 Pittsburgh, Pennsylvania 15230

SUBJECT:

NRC INSPECTION NO. 99900404/97-02 fZ ~ ,*

Dear Mr. Liparulo:

During the period November 17 through November 21,1997, the U. S. Nuclear Regulatory -

Commission (NRC) performed an inspection of AP600 design control quality assurance (QA) activities at the Westinghouse Energy Center in Monroeville, Pennsylvania. The enclosed report presents the results of that inspection.

The purpose of the inspection was to review Westinghouse corrective actions with respect to findings identified previously in several NRC inspection reports and to determine if quality activities performed as part of the design of the AP600 Advanced Light Water Reactor were conducted under the appropriate provisions of the Westinghouse 10 CFR Part 50, Appendix B, QA program of record in the AP6CO standard safety analysis report (SSAR) (Westinghouse Electric Corporation-Energy Systems Business Unit, Quality Management System, Revision 1, approved by the NRC on February 23,1996).

During this inspection, the NRC determined that the implementation of the Westinghouse QA program for AP600 design certification activities failed to meet certain NRC requirements.

Specifically, the team identified examples of inadequate program implementation with respect to control of design calculations wh:ch contained discrepancies or errors without documentation of an adequate evaluation by Westinghouse. The team also identified examples of errors that were allowed to propagate in design calculations without correction, inadequate documentation of design and analysis conclusions, and errors in bvth WGOTHIC and WCOBRA/ TRAC computer codes. Of particular concem to the NRC was Westinghouse's failure to adequately evaluate the impact of GOTHIC computer code errors reported by Numerical Applications, Inc., in accordance /

with Westinghouse QA requirements and 10 CFR Part 21, as applicable. Accordingly, Westinghouse needs to evaluate the impact of these findings on the AP600 SSAR Chapters 6 /

and 15 analyses, and all other SSAR AP600 design information, based on affected computer codes and associated calculation notes.

In light of the number of discrepancies identified by the NRC inspection team in such a small sample of the total population of documents reviewed, Westinghouse needs to establish, via a S(h/

comprehensive evaluation and/or assessment, the adequacy of the AP600 QA de ign review

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N. J. Liptrulo 2- January 28, 1998

. process and the integrity of the AP600 design, particularly containment design, and demonstrate that the requirements of 10 CFR 50, Appendix B,10 CFR Part 21, and the applicable design certification provisions of 10 CFR Part 52 are being satisfied. The NRC requests that Westinghouse provide a schedule outlining the basis and completion of such assessment within 30 days of receipt of this letter.

Detailed technical issues arising from this inspection, which require prompt action by

. Westinghouse due to the staff's schedule to complete safety evaluations for the AP600 design certification program, were documented in a Request for Additional Information (RAI) and sent to you on December 17,1997. The substance of these RAls has been incorporated into this report and identified as either a Notice of Nonconformance or an Unresolved item (URI). The NRC requests that Westinghouse provide the information requested in the URI within 30 days of receipt of this letter.

The responses requested by this letter and the enclosed Notice of Nonconformance are not subject to the clearance procedures of the Office of Management and Budget as required by the Paperwork Reduction Act of 1980, Public Law No.96-511.

In accordance with 10 CFR Part 2.790 of the NRC's " Rules of Practice," a copy of this letter and its enclosures will be placed in the NRC's Public Document Room Shculd you have any questions conceming this inspection, we will be plused to discuss them with you.

Sincerely, l Original signed by: Suzanne C. Black Suzanne C. Black, Chief Quality Assurance, Vendor Inspection, and Maintenance Branch Division of Reactor Controls and Human Factors Office of Nuclear Reactor Regulation Docket No.: 52-003

Enclosures:

1. Notice of Nonconformance

2. Inspection Report Mo 99900404/97-02 cc w/encls: See Next Page DISTRIBUTION:

HQMB R/F Central Files / Docket Files /PDR/Whitebook JRoe RLSpessard BSheron TCollins GHolahan CBerlinger DOCUMENT NAME:G:\ DRAFT \PETTIM97-02 FIN.

To receive a copy of this document, Indicate in the box: "C" = Copy without enclosures "E" = Copy with enclosures "N" = No copy "SEE NEXT PAGE FOR CONCURRENCE OFFICE HOMB/DRCH l HOMB/DRCH SCSB/DSSA l SRXB/DSSA SRXB/DSSA l NAME RPettis* JPeralta* EThrom* RLandry* SSun*

DATE 01/ /98 01/ /98 01/ /98 01//98 01/ /98 yua OFFICE

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a' N. J. Liparulo 4-Mr. Nicholas J. Liparulo Docket No.52-003 Westinghouse Electric Corporation AP600 cc:

Mr. B.A. McIntyre . Barton Z. Cowan, Esq.

Advanced Plant Safety & Licensing Eckert Seamans Cherin & Mellott Westinghouse Electric Corporation 600 Grant Street 42nd Floor Energy Systems Business Unit Pittsburgh, PA 15219 P.O. Box 355 Pittsburgh, PA 15230 - Mr. Ed Rodwell, Manager PWR Design Certification Ms. Cindy L. Haag Electric Power Research Institute Advanced Plant Safety & Licensing 3412 Hillview Avenue Westinghouse Electric Corporation Palo Alto, CA 94303 Energy Systems Business Unit Box 355 Mr. Charles Thompson, Nuclear Engineer {

Pittsburgh, PA 15230 AP600 Cortification NE-50 Mr. Sterling Franks 19901 Germantown Road U.S. Department of Energy Germantown, MD 20874 NE 50 19901 Germantown Road - Mr. Russ Bell >

Germantown. MD 20874 Senior Project Manager, Programs l Nuclear Energy Institute Mr. Frank A. Ross 1776 i Street, NW U.S. Department of Energy, NE-42 Suite 300 Office of LWR Safety and Technology Washington, DC 20006-3706 19901 Germantown Road Germantown, MD 20874 Mr. Robert Malers, PE Pennsylvania Department of -

. Ms. Lynn Connor Enviornmental Protection Doc Search associates Bureau of Radiation Protection Post Office box 34 Rachel Carson State Office Building Cabin John MD 20818 P.O. Box 8469 Harrisburg, PA 17105-8469 Dr. Craig Sawyer, Manager

- Advanced Reactor Program

. GE Nuclear Energy 175 Curtner Avenue, M/C 754 San Jose. CA 95125 Mr. Robert H. Bucholz GE Nuclear Energy 175 Curtner Avenue, M/C 781 San Jose . CA 95125