ML20236A908
| ML20236A908 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 10/16/1987 |
| From: | Terao D NRC OFFICE OF SPECIAL PROJECTS |
| To: | NRC OFFICE OF SPECIAL PROJECTS |
| References | |
| NUDOCS 8710230227 | |
| Download: ML20236A908 (6) | |
Text
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'o UNITED STATES NUCLEAR REGULATORY COMMISSION o
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WASHING TON, D. C. 20555
,o October 16, 1987 l
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Docket Nos. 50-445 and 50-446 APPLICANT:
Texas Utilities Electric Company (TV Electric)
FACILITY:
Comanche Peak Steam Electric Station (CPSES), Units 1 and 2
SUBJECT:
SUMMARY
OF AUDIT ON AUGUST 17-20, 1987 - CPRT THIRD-PARTY REVIEW 0F LARGE BORE PIPING ISSUES l,
During August 17-20, 1987, the NRC staff (D. Terao) and consultants conducted an audit of the Comanche Peak Response Team (CPRT) third-party review of the large bore piping issues associated with the CPSES.
The audit was conducted at the offices of TENERA in Berkeley, California.
The purposes of the audit were: 1) to determine the final scope of the TENERA third-party review of large bore piping, 2) to determine the completeness of the piping issues addressed in the TENERA Engineering Evaluations, and
- 3) to determine the overall comprehensiveness of the TENERA resolutions to the piping and pipe support issues raised by external sources.
The scope of the audit included a review of the CPRT " Discipline Specific Results Report: Piping and Supports," (DAP-RR-P-001)* Revision 0, dated July 2, 1987, including selected supporting Engineering Evaluations and third-party calculations.
The objectives of the audit were to establish the status of remaining open and unresolved items from previous NRC inspections conducted at the offices of TENERA and previous audits of piping generic technical issues conducted at the offices of Stone & Webster Engineering Corporation (SWEC).
A list of attendees at the entrance meeting held on August 17, 1987 is provided in the Enclosure to this memorandum.
The highlights of the staff audit and preliminary findings based on the initial review of the TENERA third-party activities are discussed below:
1.
Scope - Based on its audit, the staff obtained a clearer understanding of the final scope of TENERA's review as delineated in Revision 4 to the CPRT Program Plan.
TENERA has completed a detailed review of the piping and supports external source issues and its findings are summarized in the Piping Results Report in 32 Primary Issue Evaluations and 51 Discrepancy / Issue Reports (DIRs).
Each Primary Issue and DIR is supported by a cetailed Engineering Evaluation.
TENERA has also reviewed the SWEC design criteria ** used for the piping and supports requalification and evaluated their completeness, accuracy,
- Hereafter referred to as the " Piping Results Report"
- Comanche Peak Project Procedure (CPPP-7), Design Criteria for Pipe Stress and Pipe Supports, Revision 2 8710230227 871016 PDR ADOCK 05000445 A
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and consistency with FSAR licensing commitments, applicable Regulatory
-_ Guides, industry standards, the ASME Boiler & Pressure Vessel Code, and R
design specifications. The TENERA findings are provided in the Piping Resul_ts Report.
i The action plan-commitments of the third-party review provided in Discipline Specific Action Plan (DSAP) IX of the CPRT Program Plan -
'(Revision 3)(which.havebeenterminatedand/ortransferredtotheapplican TU Electric are listed in Table 3 of " Forward to Appendix A CPRT Program Plan,"
which accompanied Revision 4 to the Plan.
The. staff found that additional detail of the_ scope of the TV Electric TAP is required to complete the review of the.overall scope of overview activities which will supplement the TENERA review.
In addition, the specific activities which TENERA has recommended be transferred to the TU Electric TAP should be clearly documented and provided to the staff I
for review.
2.
Completeness of Pipinc Issues - Based on its audit, the staff's initial
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review of the Piping Fesults Report found that the 32 Primary Issues and' 51 DIRs adequately capture the piping technical issues raised by external However, the staff has not yet completed its detailed technical sources.
review of all Primary Issues and DIRs and will report its findings in a future safety evaluation.
3.
Comprehensiveness of the Issue Resolutions - Based on its audit, the staff found overall that the Engineering Evaluations are thorough in-their technical justification and basis for acceptance.
It was apparent that the TENERA effort resulted in technically extensive and in-depth evaluations. involving many engineers who we e knowledgeable of the CPSES piping issues.
The staff is continuing its review of selected Engineering Evaluations.(e.g., Fluid Transients, Reduced Pipe Wall Thickness, and Anchor Bolts) and will' report its findings in more detail in a future safety evaluation.
4.
Follow-Up Items from Inspection Report 50-445/86-19; 50-446/86-16 Several open items relating to the TENERA review of piping and supports were previously identified in NRC Inspection Report 50-445/86-19; 50-446/85-16.
The staff examined the applicant's responses to these i
open items during this audit and will report its findings in a future l
safety evaluation.
A total of 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> was involved with this audit.
O h etc~
L David Terao, Mechanical Engineer Comanche Peak Project Division Office of Special Project
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Enclosure:
List of Attendees l
l cc: See next page
a-l.
Comanche Peak Steam Electric Station W. G. Counsil
. Texas Utilities Electric Ccmpany Units 1 and 2 Cc:
Asst. Director for Inspec Programs Thomas G. Dignan, Jr.
Comanche Peak Project Division L
_ Ropes & Gray U.S. Nuclear Regulatory Commission
-225 Franklin Street Boston, Massachusetts 02110 P. O. Box 1029 Granbury, Texas 76048 l
l Robert A. Wooldridge, Esq.
Regional Administrator, Region IV Worsham, Forsythe'. Sampels &
U.S. Nuclear Regulatory Commission Wooldridge 611 Ryan Plaza Drive, Suite 1000 1
2001 Bryan Tower, Suite 2500 Arlington, Texas 76011 Dallas, Texas 75201 Lanny A. Sinkin Mr. Homer C. Schmidt Christic Institute Director of Nuclear Services 1324 North Capitol Street Texas Utilities Electric Company Washington, D.C.
20002 Skyway Tower 400 North Olive Street, L.B. 81 Ms. Billie Pirner Garde, Esq.
Government Accountability Project Dallas, Texas 75201 Midwest Office Mr. Robert E. Ballard, Jr.
104 East Wisconsin Avenue i
Director of Projects Appleton, Wisconsin 54911 Gibbs and Hill, Inc.
11 Penn Plaza New York, New York. 10001 David R. Pigott, Esq.
Orrick, Herrington &'Sutcliffe i
600 Montgomery Street San Francisco, C=" fornia 94111 Mr. R. S. Howard t
Westinghouse Electric Corporation P. O. Box 355 Anthony Z. Roisman, Esq.
Pittsburgh, Pennsylvania 15230 Suite 600 1401 New York Avenue, NW Renea Hicks, Esq.
Washington 0.C. 20005 Assistant Attorney General Environmental Protection Division Robert Jablon P. O. Box 12548, Capitol Station Bonnie S. Blair Austin, Texas 78711 Spiegel & McDiannid 1350 New York Avenue, NW Mrs. Juanita Ellis, President Washington, D.C. 20005-4798 Citizens Association for Sound Energy 1426 South Polk George A. Parker, Chairman Dallas, Texas 75??4 Public Utility Committee Senior Citizens Alliance Of Ms. Nancy H. Williams Tarrant County, Inc.
CYGNA Energy Services 6048 Wonder Drive 2121 N. California Blvd., Suite 390 Fort Worth, Texas 76133 Walnut Creek, CA 94596 a
W. G. Counsil Comanche Peak Electric Station Texas Utilities Electric Company Units 1 and 2 cc:
Joseph F. Fulbright Fulbright & Jaworski 1301 McKinney Street Houston, Texas 77010 Roger D. Walker Manager, Nuclear Licensing Texas Utilities Electric Company Skyway Tower 400 North Olive Street, L.B. 81 Dallas, Texas 75201 Mr. Jack Redding c/o Bethesda Licensing Texas Utilities Electric Company 3 Metro Center, Suite 610 Bethesda, Maryland 20814 William A. Burchette, Esq.
Counsel for Tex-La Electric Cooperative i
of Texas l
Heron, Burchette, Ruckert & Rothwell Suite 700 i
1 1025 Thomas Jefferson Street, NW l
Washington, D.C.
20007 James M. McGaugby GDS Associates, Inc.
Suite 450 2525 Cumberland Parkway Atlanta, Georgia 30339 Administrative Judge Peter Bloch U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Elizabeth B. Johnson j
Administrative Judge j/
Oak Ridge National Laboratory P. 0. Box X, Building 3500 Oak Ridge, Tennessee 37830 Dr. Kenneth A. McCollom 1107 West Knapp Stillwater, Oklahoma 74075 Dr. Walter H. Jordan Administrative Judge 881 West Outer Drive Oak Ridge, Tennessee 37830
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l Enclosure
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NRC Audit of Piping / Supports TENERA Offices 8/17/87 Frank'0ougherty TENERA L. J. Nishiguchi TENERA
'W. P..Chen NRC Consultant l
TES(NRCConsultant)
G. Moy.
TES (NRC Consultant)
Bob Hookway
. David Terao NRC Howard Levin TENERA TU Electric Steven Karpyak TU Electric
' John Finneran TENERA Ed Wais TENERA Stan Wrona k
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v Distribution:
-Docket File NRC PDR e
' Local PDR
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OSP Reading File
'CPPD Reading File
.J. Keppler/J. Axelrad C. Grimes P. McKee J. Lyons.
R. Warnick -
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-D. Kelley -
D. Terao A. Vietti-Cook M. Malloy.
CPPD-LA OGC-Bethesda F. Miraglia:
E. Jordan J..Partlow
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