ML20236W254

Summarizes 871005-09 Audits of Plant third-party Review of Train a & B Conduit & Support Design at Facility.List of Attendees at 871009 Exit Meeting Encl

ML20236W254
Person / Time
Site:	Comanche Peak
Issue date:	11/25/1987
From:	Terao D NRC OFFICE OF SPECIAL PROJECTS
To:	NRC OFFICE OF SPECIAL PROJECTS
References
NUDOCS 8712070357
Download: ML20236W254 (7)

Text

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UNITED STATES o

f NUCLEAR REGULATORY COMMISSION n

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g WASHINGTON, D. C. 20666 k.

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November 25, 1987 Docket Nos. 50-445 and 50-446 APPLICANT:

Texas' Utilities Electric Company (TU Electric)

FACILITY:

Comanche Peak Steam Electric Station (CPSES), Units 1 and'2

SUMMARY

OF AUDIT ON OCTOBER 5-9, 1987 - COMANCHE PEAK RESPONSE TEAM THIRD-PARTY REVIEW 0F TRAIN A AND B CONDUlT AND SUPPORTS On October 5-9, 1987, the NRC staff and'its consultants conducted an audit of the Comanche Peak Response Team (CPRT) third party review of the Train A and B*

conduit and support design at'the Comanche Peak Steam Electric Station.

The third party review was performed by TENERA, L.P. as a part of the Design Adequacy-Program under the charter of the CPRT Program Plan (Revision 4), dated June 18,:

1987. A list of those persons involved in the audit and attending the exit-meeting is included in the enclosure to this summary.

The purpose of the audit was to assess the overall. adequacy of the CPRT. third-party (TENERA) activities associated with their review of the CPSES Train A and B conduit and support design validation.. The Train A and B conduit support design validation is currently being performed by Ebasco Services I. incorporated as a part of the overall TU Electric Corrective Action Program for design.

The NRC staff audit included:

1) a. review of the scope of the overview activities completed by TENERA, 2) a review of the CPRT Design Adequacy Program report entitled " Discipline Specific Results Report: Civil / Structural - Train A & B Conduit Supports," DAP-RR-C/S-002, Revision 2, dated September 25, 1987 (hereafter referred to as the " Train A & B Conduit Support Results Report"), and 3)-a review of the supporting engineering evaluations and review checklists.

The following is a summary of the audit team's findings as discussed at the exit meeting.

1)

Scope of the CPRT Third-Party Review The audit team discussed with TENERA the extent'of the Train A and B conduit' support reviews completed by TENERA as described in the CPRT Program Plan Discipline Specific Action Plan (DSAP) VIII Section 4.1.2.

^1he CPRI third party scope also included seismically designed 'non-safety related (Train C) conduit larger than_2 inches in diameter for'which design-validation is. required.

All subsequent references to Train A and B conduit include Train C a's such.

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Summary of Audit on 10/5-9/87 Novemb'er 25, 1987 1

During the course of the audit, the Laudit team noted.that.in some cases, the' latest revisions of Ebasco documents were not reviewed by TENERA.

In addition, l

TENERA's scope does not include a review of the program implementation.

Re--

1 sponsibility for third party review of the program. implementation will be;trans-I ferred from TENERA to the'TU Electric Technical Audit._ Program (TAP) organization after the results report is finalized.. The team raised a concern about the continuity of the third party review program.

The audit team identified a-number of areas that should be highlighted by TENERA for follow-up audit'by the TAP.

These areas include:

a) review of later revisions of procedures and criteria documents j

b) review of conduit systems that were design verified by procedures which will be revised, and c) review of ongoing activities which will not be included -in TENERA's scope of review (e.g., ANC0 dynamic ' test results and.their application to clamp qualification).

To assure continuity, the audit team recommended that a list of ongoing activities and program document revisions not included in TENERA's scope be prepared for-follow-up audit by the TAP.

2)

Results Report Review i

The team found the Train A & B Results Report to be a well-written, well-organized,

.J clear, and concise document.

The' report, including its-references and attachments,

l was helpful to the team in identifying.the source of the issues and the project documents which contain the resolution of the, issues.

The basis for TENERA's.

findings is described in the engineering evaluations and review checklists.

3 1

3)

Review of Engineering Evaluations and Review Checklists j

l l

There are a total of 55 review checklists and 16 engineering evaluations which J

document TENERA's efforts in their review of the Train A and B conduit support-I program.

The audit team selected and reviewed seven engineering evaluations that summarized TENERA's evaluation of the five main activities in the-Ebasco j

program.

The activities included:'1) as-built drawing package preparation, i

2) support capacity validation, 3) junction' box capacity validation, 4) span allowable studies, and 5) isometric validation.

In addition, the audit team

.i reviewed two review checklists which evaluated the two major Ebasco design i

criteria documents for Unit 1 (SAG.CP10) and Unit ~ 2 (SAG.CP2).

I The audit team's review of the TENERA engineering evaluations and review check-lists resulted in several technical discussions with TENERA during the audit-to clarify questions and resolve specific technical concerns.10verall, the -

audit team's questions and concerns were adequately addressed.

In addition, 1

through these discussions, the team gained confidence'in the' depth and compre-pensiveness of the TENERA review and their technical-understanding of the issues.

')

However, the team identified two unresolved concerns which'will require'further' review.

One unresolved concern is related to the treatment of oversized bolt 1

l holes (and other variations from the AISCLCode requirements).

TENERA has not j

yet' fully closed this issue and the team will continue'to follow its resolution.

1

.a

,C Summary of Audit'on 10/5-9/87

- 3'- '

~ November 25, 1987L The second item is related to the' treatment of the safe shutdown earthquake-loads in combination:with accident thermal loads. The team will, discuss'this item further during.its audit at Ebasco'of the' design criteria and methodology used for the design; validation of conduit' supports.

..)

Audit Team' Findings j

c.

-Overall the audit team found that the CPRT third party'had'a well-defined

'l program with controlled procedures.for performing and documentinggtheir design; J

review.

This finding was based on the team's review of: sample documents which provided a clear and auditable. trail.

The audit team will continue its. review of additional checklists, engineering'

~

evaluations reports, and the final-results' report..Upon completion ofLits review, the team will. provide its'f,indings~in a safety evaluation.

A total of'80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br /> was involved in this audit.

.q

- 3 j

6 David Terao, Mechanical Engineer' i

Comanche Peak Project Division l

Office of Special Projects i

'1

Enclosure:

1 List of Attendees at Exit Meeting 1

ll cc: See next page j

- j l

_________.__________.______________.___.z______..__

_ _ _ _ _ _ _ _ _ _ _ _ ______i

j s,.

W. G.'Counsil Comanche Peak Steam Electric Station 1

Texas Utilities Electric Company Units 1 and 2' j

?

Cc:

. Thomas G. Dignan, Jr.

Asst. Director. for Inspec Programs-

.s Ropes & Gray Comanche Peak Project Division l

225 Franklin Street

,U.S. Nuclear Regulatory Commission i

Boston,' Massachusetts 02110 P. O. Box 1029

]

Granbury, Texas 76048

)

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 l

Dallas, Texas 75201 1'

La~'y A. Sinkin l

Mr. Homer C. Schmidt Christic Institute Director of Nuclear Services 1324 North Capitol Street

{

Texas Utilities Electric Company Washington, D.C.

20002 i

Skyway Tower 400 North Olive Street, L.B. 81

-Ms. Billie Pirner Garde,;Esq.

1 Dallas, Texas 75201 Government Accountability Project l

Midwest Office-i Mr. Robert E. Ballard, Jr.

104 East Wisconsin Avenue l

Director of Projects Appleton, Wisconsin 54911 Gibbs and Hill, Inc.

i 11 Penn Plaza 1

New York, New York 10001 David R. Pigott, Esq.

j Orrick, Herrington & Sutcliffe 1

600 Montgomery Street-

)

Mr. R. S. Howard San Francisco, California 94111 i

Westinghouse Electric Corporation 1

P. O. Box 355 Anthony Z. Roisman, Esq.

l Pittsburgh, Pennsylvania 15230

. Suite 600 1401 New York Avenue, NW Renea Hicks, Esq.

Washington, D.C. 20005 Assistant Attorney General l

Environmental Protection Division Robert Jablon-P., 0. Box 12548, Capitol Station Bonnie S. Blair Austin, Texas 78711 Spiegel & McDiarmid 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 75224 Public Utility Committee Senior Citizens Alliance Of Ms. Nancy H. Williams Tarrant County, Inc.

l

.CYGNA Energy Services 6048 Wonder Drive 2121 N. California Blvd., Suite 390 Fort Worth, Texas 76133 Walnut Creek, CA 94596 l

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Comanche Peak Electric: Station-Wi G. Counsil-

-?2 Texas Utilities Electric. Company

Units 1 and 2.-

<cc:

Joseph F? Fulbright-Jack R. Newman,LEsq.

Fulbrightl&-Jaworski Newman & Holtzinger, P.Ci 1301 McKinney Street Suite.1000.

Houston,. Texas 77010 1615 L~ Street,iN.W.J Washington, D.C. 20036

. Roger 0;. Walker

^

C

Manager, Nuclear Licensing-Texas Utilities Electric Company Skyway Tower 400 North'011ve Street, L.B. 81

. Dallas,uTexas -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' of Texas-Heron, Burchette,-Ruckert &'Rothwell' Suite 700 1025 Thomas Jefferson Street, NW Washington, D.C, 20007 James P. McGaughy, Jr.

GDS Associates, Inc.

Suite 720 1850 Parkway Place 1

Marietta, Georgia 30067 l

Administrative Judge Peter Bloch U.S. Nuclear Regulatory Commission I

Washington, D.C.

20555 Elizabeth B. Johnson Administrative Judge Oak Ridge National' Laboratory P. O. Box X, Building 3500 Dak Ridge, Tennessee 37830 Dr. Kenneth A. McCollom s

1107 West Knapp Stillwater, Oklahoma 74075 Dr.. Walter H. Jordan Administrative Judge.

881 West.0 uter Drive-Oak-Ridge, Tennessee 37830-l 9

Enclosure List of Attendees'at Exit Meeting (10/9/87) For NRC Audit of CPRT Third-Party Review of Conduit and Supports (Train A and B)

TU Electric J. Finneran S. Hanson R. Lynn Natzic TENERA T. Snyder C. Mortgat i

D. Nyman USNRC/ Consultants

0. Terao G. DeGrassi (Brookhaven National Laboratory)*

J. Braverman (Brookhaven National Laboratory)*

J. Flaherty ITeledyne Engineering Services)**

E. Solla (Teledyne Engineering Services)**

• involved with Train.A & B conduit supports

• • involved with Train C 1 conduit supports l

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