ML19208A771

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Responds to NRC 790427 Ltr Re Violations Noted in IE Insp Rept 50-322/79-02.Corrective Actions:Welds Where Max Allowable Heating Rate Was Exceeded Have Been Inspected.No Cracks or Defects Found
ML19208A771
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 07/25/1979
From: Wofford A
LONG ISLAND LIGHTING CO.
To: Robert Carlson
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19208A763 List:
References
SNRC-407, NUDOCS 7909170447
Download: ML19208A771 (1)


Text

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LONG ISLAND LIGHTING COM PANY 175 EAST OLD COUNTHY ROAD . H I C K S V I L L E, NEW YORK 11001 ANDREW W. WOFFORO vtCC PmESsDENT SNRC-407 July 25, 1979 Mr. Robert F. Carlson, Chief Reactor Construction & Engineering Support Branch U. S. Nuclear Regulatory Commission, Region I 631 Park Avenue King Of Prussia, Pennsylvania 19406 NRC Inspection No. 79-02 Shoreham Nuclear Power Station - Unit No. 1 Docket No. 50-322

Dear Mr. Carlson:

In response to your letter of April 27, 1979, the following supplementary information relative to the apparent noncompliance identified during NRC Inspection No. 50-322/79-02 is provided:

Corrective Action and Results Further review of the records of welds heat treated in accordance with Procedure NW100, Appendix D, has revealed several instances where the maximum allowable heating rate was exceeded.

All cooling rates were within acceptable limits. Those welds where the maximum allowable heating rate was exceeded have been visually and radiographically examined, the adjacent piping has been visually examined and any areas where a sharp change in profile occurred were examined by magnetic particle. The results of the examination revealed no cracks or other rejectable weld defects and no distortion of the pipe. Accordingly, the piping installations in question are considered acceptable, and no further corrective action is required.

Date Full Compliance Will Be Achieved Full compliance has been achieved.

Very truly yours, 7 Obr,.?.M3

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