ML20078K639

Second Interim Deficiency Rept,Item 103 Re Main Control Board Supplied by Westinghouse.Initially Reported on 821014. Deficient Welding Identified & Repaired by Vendor.New Scheduled Completion Date Is 831230.Final Rept by 840131

ML20078K639
Person / Time
Site:	Harris
Issue date:	10/12/1983
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-128 103, 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8310190171
Download: ML20078K639 (4)

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CD&L

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P. O. Bcx 101, New Hill, N. C. 27562 i October 12,1983 9

Mr. James P. O'Reilly NRC-128 United States Nuclear Regulatory Commission

Region II 101 Marietta Street, Ne thwest Wuite 2900)

Atlanta, Georgia 303' CAROLINA POWER & LIGHT COMPANY

, SHEARON HARRIS NUCLEAR POWER PLANT j 1986 900,000 KW - UNITS 1 & 2

MAIN CONTROL BOARD WELD DEFICIENCIES, PURCHASE ORDER NY-435002, ITEM 103 l

Dear Mr. O'Reilly:

f Attached is our second 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 January 31,1984.

I Thank you for your consideration in this matter.

) Yours very truly,

,. m .;4 R. M. Parsons I

Project General Manager Shearon Harris Nuclear Power Plant j RMP/sh j Attachment 5 cc: Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP) 1 Mr. R. C. DeYoung (NRC) i Cb ON, Sc\hb 8310190171 831012 -

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CAROLINA POWER & LIGHT COMPANY a

SHEARON HARRIS NUCLEAR POWER PLANT 1

r UNIT 1 1

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INTERIM REPORT NO. 2 l MAIN CONTROL BOARD WELD DEFICIENCIES ITEM 103 OCTOBER 12,1983 -

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6 REPORTABLE UNDER 10CFR50.55(e)  ;

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

DATE PROBLEM REPORTED: 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 0" l PROBLEM: The deficiency involves all sections (A, B, C, D) of the MCB. The board is fabricated in sections only due to j physical limitations of handling and shipping. When

! installed, it becomes a single unit.

SAFETY j IMPLICATIONS

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.

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n REASONS  :

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

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

CORRECTIVE ACTION: The identified deficient welding has been repaired by the vendor. The MCB will be reinspected to vendor weld criteria. Any deficiency found will be corrected.

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

FINAL REPORT: The original completion date of October 15, 1983 for the vendor's seismic qualification analysis was not met due to commercial problems between CP&L and the vendor.

These problems have been resolved and the new scheduled completion date is now December 30, 1983. A final report will be issued af ter CP&L review. The scheduled report date is January 31, 1984.