ML20086L334

Third Interim Deficiency Rept,Item 103 Re Main Control Board Weld Defects.Initially Reported on 830310.Deficient Welding Repaired & Inspected by Vendor on Site.Next Rept Will Be Submitted by 840430

ML20086L334
Person / Time
Site:	Harris
Issue date:	01/30/1984
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-175 103, NUDOCS 8402080192
Download: ML20086L334 (4)

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l CD&L Carolina Power & Light Company

, m. +m yrw-i P. O. Box 101, New Hill, N. C. 27562 January 30,1984 Mr. James P. O'Reilly NRC-175 United States Nuclear Reguletory Commission Region II 101 Marietta Street, Northwest (Suite 2900)

Atlanta, Georgia 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PL A.NT 1986 - 900,000 KW - UIhT 1 MAIN CONTROL BOARD WELD DEFICIENCIES, PURCHASE ORDER NY-43S002, ITEM 103

Dear Mr. O'Reilly:

Attached is our third Interim report on the subject item which was deemed reportable per the provisions of 10CFR50.55(e), on March 10,1983. CP&L is pursuing this matter, and it is currently projected that corrective action and submission of the final report will be accomplished by April 30,1984.

Thank you for your consideration in this matter.

Yours very truly, py)F 22 :*

R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/sh Attachment ec: Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP)

Mr. R. C. DeYoung (NRC) 8402000192 840130 PDR ADOCK 05000400 S PDR OFFICI AI, COPY

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l CAROLINA TOWER & LIGHT C0ffPANY SHEARON HARRIS NUCLEAR POWER PLAhT UFIT 1 THIRD INTERLM REPORT IfAIN CONTROL BOARD WELD DEFICIENCIES ITEFt 103 JANUARY 25, 1984 REPORTABLE UNDER 10CFR50.55(e)

SUBJECT:

Shearon Harris Nuclear Power Plant, Unit 1, 10CFR50.55(e)

Reportable Deficiency in the Main Control Board (MCB) supplied under Purchase Order NY-435002, Westinghouse Shop Order 395 ITEM: Structural Welding SUPPLIED BY: Westinghouse Electric Corporation, Orville, Ohio NATURE OF DEFICIENCY: The subject Unit 1 equipment has been received at the site.

During a CP&L site QA inspection of the equipment, weld deficiencies were noted when compared to the vendor's welding criteria.

DATE PROBLEM l OCCURRED: The problem was noted by CP&L site QA inspection on September 30, 1982.

DATE PROBLEM R EPORTED: October 14, 1982, CP&L (N. J. Chiangi) notified the NRC (Mr. C. Hehl) that this item was potentially reportable under 10CFR50.55(e) .

March 10,1983 - CP&L (N. J. Chiangi) notified the NRC (Mr. C. Hehl) that this item was reportable under 10CFR50.55(e).

SCOPE OF PROBLEM: The deficiency involves all sections (A, B, C, D) of the M CB . The board is fabricated in sections only due to physical limitations of handling and shipping. When installed, it becomes a single unit.

SAFETY IMPLIC ATIONS: Seismic qualification of the MCB is required to assure structural integrity during a seismic event. Safety-related components are located in the board; thus, structural failure of the board would jeopardize operation of the safety-related equipment.

REASONS DEFICIENCY IS R EPORTABLE: During initial site inspection, several welds were identified as missing or possibly needing repair.

Further inspection, using vendor weld criteria deternined that six (6) welds should be added or repaired.

CORRECTIVE ACTION: The identified deficient welding has been repaired and inspected by the vendor on site.

The vendor has performed a seismic qualification analysis using design criteria to which the MCB was built.

FINAL REPORT: A final report of the vendor's seismic analysis has just been completed and an advanced copy issued. CP6L is in the process of reviewing the analysis, and if found satisfactory, a final report will be issued. The projected completion date is now April 30, 1984.

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