ML20002A833

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Responds to NRC Re Violations Noted in IE Insp Repts 50-395/80-20 & 50-395/80-21.Corrective Actions: Specific Steps to Ascertain Adequacy of Joint Taken
ML20002A833
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 10/03/1980
From: Nichols T
SOUTH CAROLINA ELECTRIC & GAS CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20002A831 List:
References
NUDOCS 8011210663
Download: ML20002A833 (2)


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October 3, 1980

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oo U. S. Nuclear Regulatory Commission Region II

$[n 101 Marietta Street, N.W.

Atlanta, GA 30303

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ATTENTION:

Mr. James P. O 'Reilly, Director

Subject:

V.C. Summer Nuclear Station Unit #1 License CPRP-94, Response to NRC Audit Report 50-395/80-20 dated 9/4/80 and 50-395/80-21 dated 9/11/80 Centlemen:

In response to NRC reports 50-395/80-21 and 50-395/80-20, we have reviewed the information therein contained'and find no proprietary information. In addition, we have evaluated the circumstances relating to the item of non-compliance No. 80-20-01 and provide the following results of 'that evaluation.

80-20-01 Dealt with failure to follow procedure for fit-up of butt welded pipe.

1.

Cause The time frame in which the fit-up of the butt joint identiRed in this item of noncompliance was made, was June-July 1979.

It was ut that time that the craf t ocd constructor's ASMF Code QC failed to follow procedures and accepted a fit tp that did not meet criteria. SCE6G believes that this occurrence is further manifescation of the constructor's ASME in-spection program breakdown that was reported in various communications to Region II associated with items 79-35-02, 79-24-02, 80-05-06 and 79-36-04.

The breakdown resulted from any of a combination of factors including some ' specific procedural-inadequacies, and some less specific interpre-tation,-training, competency, attitude, and supervision inadequacies.

2.

Immediate Corrective Steps Taken Upon discovery, during this NRC visit, that a potential mismatch and/or underwall. condition existed for the specific weld joint in question, SCE6G took specific steps to ascertain the adequacy of the joint.

The data associated with this joint was added to that taken and being analized for a generic concern on mismatch and fit-up presently assigned NRC unresolved Item-79-35-05.

SCE&G Engineering and their agents are 8011210 663

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October 3, 1980 4

presently determining what the significance is of some mismatch and underwall conditions in Class 3 Butt Welds. The conclusions of the actions taken with respect to 79-35-05 will apply to the weld joint in question, as well as all other Class 3 Butt Welds with question-able fit-up of which SCE&G has cognizance. No specific items of action were determined appropriate with respect to the failure to follow procedure based on 3. to follow.

3.

Corrective Steps to Avoid Future Noncompliance Commensurate with many corrective actions taken in December 1979 and Januaqr 1980, with respect to the constructor's ASME code inspection program breakdown, certain actions were taken with respect to Class 3 Butt Welds. A work hold was placed on code QC work at that time while procedures were amplified and clarified, and QC organizations were reorganized, and extensive indoctrination and training took place.

The work hold on Class 3 Butt Welds was released January 2, 1980 at which time it was determined Class 3 Butt Welds could be made within procedural guidelines by properly trained personnel. SCE6G believes the corrective actions implemented in December 1979 and January 1980, with respect _ to the many concerns in existence as a result of the constructor's QC breakdown, have eliminated the pote...ial for recur-rence of the procedure violation that occurred in June-July 1979.

We trust that you will find the SCE&G actions to resolve this item both appropriate and satisfactory. Please feel free to contact us if further clarification or information relative to this item is needed.

Very truly yours, T. C. Nichols, Jr.

TCN:j f r cc:

B. A. Bursey V. C. S umme r G. H. Fischer Bill Williams T. C. Nichols E. H. Crews H. T. Babb D. A. Nauman O. S. Bradham O. W. Dixon J. B. Knotts, Jr.

Ron Clary I&E (Washington)

NPCF/Whitaker File