ML20083A188

Final Deficiency Rept,Item 125 Re Welding Defects in Reliance Electric Co Class IE Auxiliary Control Panel. Initially Reported on 830401.Welds Repaired.Vendor Instructed to Follow QA Manual for Unit 2 Equipment

ML20083A188
Person / Time
Site:	Harris
Issue date:	12/13/1983
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-153 10CFR-050.55E, 10CFR-50.55E, 125, NUDOCS 8312200205
Download: ML20083A188 (4)

Text

. . - . -

~

• 50- 400 CP&L y Carolina Power & Light Company P. O. Box 101, New Hill, N. C. 27562 December 13,1983 Mr. James P. O'Reilly NRC-153 United States Nuclear Regulatory Commission Region II 101 Marietta Street, Northwest (Saite 2900)

Atlanta, Georgia 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1986 900,000 KW - UNITS 1 & 2 WELDING DEFICIENCIES IN CLASS lE AUXILIARY CONTROL PANEL, PURCHASE ORDER NY-435190, ITEM 125

Dear Mr. O'Reilly:

Attached is the final report on the subject item which was deemed reportable per the provisions of 10CFR50.55(e), on April 26,1983. With this report, Carolina Power & Light Company considers this matter closed.

If you have any questions regarding this matter, please do not hesitate to contact me.

Yours very truly, g ^:: A R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/sh Attachment ee: Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP)

Mr. R. C. DeYoung OFFICI AL COPY 8312200205 831213 PDR ADOCK 05000400 S PDR g;7 I \

P CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 FINAL REPORT AUXILIARY CONTROL PANEL ITEM NO. 125 DECEMBER 13, 1983 REPORTABLE UNDER 10CFR50.55(e)

~

\

SUBJECT:

Shearon Harris Nuclear Power Plant Unit 1 10CFR50.55(e) reportable deficiency in the Auxiliary Control Panel supplied under Purchase Order NY-435190 ITEM: Etructural welding SUPPLIED BY: Reliance Electric Company, Stone Mountain, Georgia NATURE OF DEFICIENCY: The subject Unit i equipment h'as been received at the site. Several welding deficiencies were noted when the equipment was inspected as compared to the vendor drawings.

DATE PROBLEM OCCURRED: The problem was identified during receipt inspection on March 17, 1983.

DATE PROBLEM REPORTED: On April 1, 1983, CP&L (Mr. K. V. Hate')

notified the NRC (Mr. A. Hardin) that this item was potentially reportable under 10CFR50.55(e).

On April 26, 1983, CP&L (Mr. N. J.Chiangi) notified the NRC (Mr. A. Hardin) that this item was reportable under 10CFR50.55(e).

SCOPE OF PROBLEM: The equipment was manufactured in three (3) sections. It will be bolted together and installed as a single unit. Deficient welds were identified in each section; eight (8) welds total.

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

e REASON DEFICIENCY IS REPORTABLE: Welding inspection at the site was done using the vendor's QA manual (QCP 5.3). Deficient welds did not adhere to the manual.

CORRECTIVE ACTION: CP&L originated a Field Change Request (FCR-AS-2879) to have the welds repaired by site personnel. The welds have been repaired.

The vendor has been given a copy of the weld deficiency report, the rework done, and has been requested to provide comment and an analysis.

CP&L letter with this information and request is H0-83158 dated May 9, 1983.

PREVENTATIVE ACTION: The vendor has been instructed to rigorously follow his QA manual for Unit 2 equipment.

FINAL REPORT: Final analysis by vendor and HPES indicate the deficient welds possess sufficient structural integrity to survive a design basis seismic event. Therefore, repairs made will only further reinforce the structure.

!