ML20004E511

Forwards Amended Response to NRC 810408 Ltr Re Violations Noted in IE Insp Repts 50-413/81-06 & 50-414/81-06. Corrective Actions:Const Procedure 385 Will Be Revised Detailing Correct Tolerance for Snubber & Strut Asssemblies

ML20004E511
Person / Time
Site:	Catawba
Issue date:	05/27/1981
From:	Parker W DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004E507	List: ML20004E511 ML20004E513
References
NUDOCS 8106120278
Download: ML20004E511 (2)

Text

1 (9;

DUKE power COMPANY Powtm Bmtoiwo 422 SocTa Cacaca StuzzT, CaEa't$bI. N. C.,'sp A ,

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May 27, 1981 Vec t ##tSiorm? TELth0Nt; AmtA 704 Seca Pacowcnon 373-4083 Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission Region II 101 Marietta' Street,' Suite 3100 Atlanta, Georgia 30303 Re: RII: PKV 50-413/81-06 50-414/81-06

Dear Mr. O'Reilly:

Please find attached an amended reuponse to Infra. tion No. 413-414/81-06-04 which was identified in the above referenced Inspection Report.

I declare under penalty of perjury that the statements set forth herein are true and correct to the best of my knowledge.

V y truly yours,'

/ , W.

N

,(i._ a ./= '

William O. Parker, Jr.

RWO/djs Attachment I

cc: NRC - Catawba Resident Inspector i

l 8106120M 8

t DUKE POWER COMPANY CATAWBA NUCLEAR STATION

Response

Iten B. (1)

Support Packages 1-R-NV-1764 and 1-R-NI-1487 vere retrieved from the problaa file which is a central storage location where the process contral packages with identified problems are filed pending resolation.

Such problems can be identified during the document preparation, fabri-cation, installation, or inspection processes. A review of the process control forms for those supports shows that the inspections relevant to angular tolerance had not yet been performed. The out of tolerance condition observed by the inspector may have resulted from an installation error.

Corrective Actions Construction Pracedure 385 (specifically Paragraphs 2.11 'and 2.12) will be revised to show in further detail the appropriate installation tolerance for snubber and strut assemblies.

Upon approval of this revision the appropriate craf t personnel will be trained and that training documented in accordance with QA Procedure V-1.

Both supports mentioned will be reworked as part of our normal installa-tion / inspection program to meet the design requirements.

i Item B. (2)

The Design Sketch 1-A-NI-4131, Revision 1, had the NF boundary drawn l

appropriately, but the number for the sway strut modification weld was l omitted.

In addition, Paragraph 7.10 of Design Specification CNS-1206.00-04-0003 (Procedure Requirements for Fabrication and Erection of Hangers, Supports and Seismic Controls) provides a mechanism for unique numbering of NF welds on sway strut assemblies when the weld number is not provided on the design sketch, This would have been an acceptable alternative to a drawing reviston.

Corrective Action Since this occurrence, a special training session was held for all technical support personnel. Among the topics discussed in this session was the proper way to review design sketches prior to processing.

This training was documented in accordance with QA Proceduce V-1.

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