ML20024F393

Third Interim Deficiency Rept,Item 105 Re Structural Welding in Auxiliary Relay Cabinets.Initially Reported on 821101. Revised Drawings W/Critical Welds Identified & Seismic Analysis Performed.Next Rept by 830922

ML20024F393
Person / Time
Site:	Harris
Issue date:	09/06/1983
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-112 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8309090337
Download: ML20024F393 (4)

Text

'

b l. . fPll );: :l; Carolina Power & Light Company "~ UNfjf ~.

U SEp company correspondence P. O. Box 101, New Hill, N. C. 27562 g A8: S 8 August 31,1983 Mr. James P. O'Reilly NRC-ll2 United States Nuclear Regulatory Commission Region Il 101 Marietta Street, Northwest (Suite 2900)

Atlanta, Georgia 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1986 900,000 KW - UNITS 1 & 2 AUXILIARY RELAY CABINETS, PURCHASE ORDER NY-435246, ITEM 105

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 April 28,1983. CP&L is pursuing this matter, and it is currently projected that corrective action and submission of the final report will be accomplished by September 22,1983.

Thank you for your consideration in this matter. ,

Yours very truly, g f ' ;;*

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

l c1 A1, COPY -

8309090337 830906 - o <f PDR ADOCK 05000400 c:- 4./

S PDR I\

. - _ , . . = . __ .--- . - - - -

4 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 INTERIM REPORT 4

AUXILIARY RELAY CABINETS ITEM 105

. AUGUST 30,.1983 REPORTABLE UNDER 10CFR50.55(e) 1 i

t

)

4 m%+A+--h w~'w -- Te -

+rwey y-. e

= **-7 tr- r k. r* -

y -t* T retMe st 5-*-t-***-'T-T '-*T- 'T "'7"--4D M F 'T7 T*TTFW-T'WrPVW

^i n s -

SUBJECT:

' Shearon Harris Nuclear Pow'er' Plant, Unit 1, 10'FR50.55(e)

C reportable deficiency in auxiliary relay cabinets supplied under Purchase Order NY-43524,6. i ITEM: Structural Welding SUPPLIED BY: Systems Control. Corporation, Iron Mountain, Michigan i

NATURE OF DEFICIENCY: The subject Unit 1 equipment has been received at the site.

s Weld deficiencies'were noted when compared to the vendor's welding criteria.

DATE PROBLEM OCCURRED: The problem was identified during a CP&L, vendor, and Ebasco meeting / inspection at the site on October 21, 1982.

DATE PROBLEM REPORTED: On November 1, 1982, CP&L (N. J. Chiangi) notified the NRC (A. Hardin) that this item was potentially reportable under 10CFR50.55 (e) but not 10CFR Part 21. On November 30, 1982, CP&L (R. M. Parsons) notified the NRC (J. P. O'Reilly) that this item was, af ter further evaluation, potentially reportable under 10CFR21 also. More recent evaluation has determined that since CP&L QA did not accept the equipment through our QA; program, it is potentially reportable only under 10CFR50.55(e)._ On April 28, 1983 CP&L' (N. J. Chiangi) . notified 'the NRC (A. Hardin) that this item.is reportable.

SCOPE OF PROBLEM: The deficiency involves the following relay cabinets supplied under this purchase order:

1A-SA, IB-SB, 2A-SA, 2B-SB, 3A-SA, 3B-SB, 4A-SA, 4B-SB, 19A-SA, 19B-SB.

l SAFETY IMPLICATIONS: Seismic qualification of the cabinets is . required to assure structural integrity during a' seismic event.

Safety-related components are located in the cabinets; thus, structural failure would jeopardize operation of ,

safety-related* equipment. ,

REASONS DEFICIENCY IS REPORTABLE: The cabinets were inspected on site. Harris Plant Engineering.

Section (HPES) evaluated these defects and, identified 16 l as being potentially significant to the stru,ctural integrity ,

j of the equipment pertaining to seismic qualification.

l Y

Ns y

-1 a

i 4

~ 50RRECTIVE ,

7, ' ACTION: 1. The vendor supplied revised drawings with critical

~

welds identified.

- ,8

2. The vendor has done a seismic analysis (shake test)

- i to determine structural integrity of the cabinets 7,.. r 1&4A-SA and 164B-SB-as built.

The report of this analysis has been received and s

rev iewed. Based on this report and testing and HPES evaluation of apparent veld deficiencies, the cabinets 1 are judged acceptable and seismically qualified, s < # 3 ~. HPFS issued FCR-AS-2919 to correct deficiencies identified by HPES. The welds have been reworked as required.

'k , 4. HPES requested the vendor to evaluate the repaired welds and deficiencies as identified by the DDR and the HPES analysis, and to submit this evaluation for HPES review and approval. The vendor has supplied the' analysis as requested. This analysis was evaluated by HPES and compared to existing and repaired welds on the auxiliary relay cabinets. All deficiencies reported on the cabinets and the repaired welds met with the vendor's reanalysis requirements.

PREVENTATIVE ACTION: ~ Thecvendor has been informed of and has acknowledged the

~~

's' present problem. He has been advised to rigorously follow his Ql. manual for future SHNPP equipment.

FINAL

. , REPORT: In order for the disposition of the corrective action report to be prepared and processed through Engineering and Quality

,- Assurance, the final report will be submitted by September 22, p 1983.

1 i,

+

's j I,

~

/

4 4

[ f N

/s h*

A 74 x ,

7

- nc-, , , - -rv,-- --- -