ML20082Q518

Interim Deficiency Rept 83-72 Re Undersize Welds in Auxiliary Bldg.Caused by Design Error.Bechtel Reviewing Requirements of Welding Codes.Evaluation of Condition Will Be Completed & Final Rept Submitted by 840127

ML20082Q518
Person / Time
Site:	Palo Verde
Issue date:	11/28/1983
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, ANPP-28287-BSK, DER-83-72, NUDOCS 8312120230
Download: ML20082Q518 (3)

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Arizona Public Service Company P.O. BOX 21666 . PHOENIX. ARIZONA 85036 November 28, 1983 ANPP-28287-BSK/KCP U. S. Nuclesr Regulatory Commission Region.V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. T. W. Bishop, Director Division of Resident Reactor Projects and Engineering Programs

Subject:

Interim Report - DER 83-72 A 50.55(e) Potentially Reportable Deficiency Relating to Undersized Welds in Unit 1 Auxiliary Building Discovered by NRC CAT Team-File: 83-019-026; D.4.33.2

Reference:

Telephone Conversation between P. Narbut and R. Tucker on October 26, 1983

Dear Sir:

The NRC was notified of a potentially reportable deficiency in the referenced telephone conversation. At that time, it was estimated that a determination of reportability would be made within thirty (30) days.

Due to the extensive investigation and evaluation tequired, an Interim Report is attached. It is now expected that this information will be finalized by-January 27, 1984, at which time a complete report will be submitted.

Very truly yours, k 7 9. m ia E. E. Van Brunt, Jr.

APS Vice President, Nuclear Projects Management ANPP Project Director d EEVB/KCP: sis Attachment cc: See Page Two f~

8312120230 831128 PDR ADOCK 05000528 g PM tl3 y ,2 7

e Mr. T. W. Bishop DER 83-72 Page Two ec: Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.

G. C. Andognini J. A. Roedel D. B. Fasnacht A. C. Rogers B. S. Kaplan W. E. Ide J. Vorees J. R. Bynum D. D. Green P. P. Klute A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant

! D. R. Hawkinson L. E. Vorderbrueggen G. A.~Fiore111 S. R. Frost J. Self D. Canady l Records Center Institute of Nuclear Power Operations l

1100 Circle 75 Parkway, Suite 1500 i

Atlanta, GA 30339

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-INTERIM REPORT - DER 83-72 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)

PVNGS UNIT 1 I. POTENTIAL PROBLEM During re-inspection of 144 structural welds, on steel framing of Unit 1 Auxiliary Building at elevation 51'-6", it was determined that 18 welds were undersize and .not in conformance with drawing 13-C-ZAS-500. The 144 welds were previously accepted by Quality control, based on the requirements of drawing 13-C-ZAS-500 and specification 13-CM-320.

II. APPROACH TO AND STATUS OF PROPOSED RESOLUTION Bechtel Engineering is currently reviewing the impact of the undersize welds, with regard to the structural integrity of the steel framing, based on design criteria.

In addition, Bechtel Engineering is reviewing the requirements of the welding codes as specified on drawing 13-C-ZAS-500 and specification CH-320. _ Bechtel Quality Control will be instructed to review inspection plans related to this condition.

III. PROJECTED COMPLETION OF CORRECTIVE ACTION AND SUBMITTAL OF THE FINAL REPORT Evaluation of this condition and submittal of the Final Report is

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forecast to be completed by January 27, 1984.

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