ML19263C706

Responds to NRC 781129 Ltr Re Violations Noted in IE Insp Rept 50-322/78-16.Corrective Action:Reinsp of Manual Shielded Metal Arc Welds & Protective Coverings on Switchgear

ML19263C706
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	01/05/1979
From:	Wofford A LONG ISLAND LIGHTING CO.
To:	Robert Carlson NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19263C704	List: ML19263C706
References
SNRC-353, NUDOCS 7903010036
Download: ML19263C706 (3)

Text

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• H I C K S V I L L E, N E W YORK 11801 anoacw w. worrea VICE P4fSIDENT SNRC *353 January 5, 1979 Mr. Robert T. Carlson, Chief Reactor Construction & Engineering Support Branch U. S. Nuclear Regulatory Commission, Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406 NRC Inspection No. 78-16 Shoreham Nuclear Power Station - Unit No. 1 Docket No. 50-322

Dear Mr. Carlson:

This letter responds to your letter of November 29, 1978, which forwarded the report of the inspection of activities author-ized by NRC License No. CPPR-95, conducted by Mr. Toth of your office on October 24-27, 1978. The letter stated that it appeared that certain of our activities were not conducted in full compliance with NRC requirements. The apparent noncompliances and our responses follow:

I. Apparent Noncompliance with 10CFR50, Appendix B Criterion IX, and FSAR Table 9.1.4-2, Paragraph 1.d Contrary to the above, on October 25, 1978, general areas of undercut in excess of 1/32" deep were observed on the trucks, bridge, and trolley welds of the reactor building polar crane.

Corrective Action and Results Preliminary inspection of about 30% of the shop welding on the crane has revealed that welds made by automatic welding processes are acceptable, and welds containing defects are limited to those made by the manual shielded metal arc welding process.

Accordingly, all load-bearing manual shop welds will be identified, and those which are accessible will be cleaned and inspected. Final corrective action will be determined upon evaluation of the inspec-tion results.

b 790 3 010 0n3

wNG 191 AND UGHT1NG COMPANY Mr. Robert T. Carlson, Chief January 5, 1979 Reactor Construction & Engineering Support Branch Page 2 U.S. Nuclear Regulatory Commission, Region 1 Steps Taken to Prevent Recurrence The manufacturer of the crane and Procurement Quality Assurance have been advised of the inspection finding to permit a review of the welding process and verification of acceptable welds.

Further preventive action will be taken if warranted by the evalu-ation of inspection results.

Date Full Compliance Will Be Achieved Inspection of the load-bearing welds will be completed by April 30, 1979, and a schedule for completion of the necessary corrective action will be developed after evaluation of the inspection results.

II. Apparent Noncompliance with 10CFR50,-Appendix B, Criterion V, and FSAR Section 17.1.13D Contrary to the above, on October 19, 1978, the energized safety related 4160 volt switchgear IR22*SWG103 in the 103 emergency switchgear room elevation 25', control room building, did not comply with the requirements of procedure C.S.I. 13.1. There was an accumulation of dirt inside of the energized switchgear equipment which could create conditions that would adversely affect the quality of the component and the equipment operation.

Corrective Action and Results Dust and dirt have been removed from the switchgear, and protective coverings have been installed to prevent debris from entering the equipment.

Steps Taken to Prevent Recurrence Construction site instructions are being revised to more clearly define responsibility for maintenance of cleanliness during the construction and turnover periods, and a quality assurance instruction has been drafted defining controls of housekeeping during checkout, initial operation and pre-operational testing. Field Quality Control and Station Operational Quality Assurance will continue to monitor activities in the area to insure that effective controls have been astablished and implemented.

NG 181 ANd UGHT1NG COMPANY Mr. Robert T. Carlson, Chief January 5, 1979 Reactor Construction & Engineering Support Branch Page 2 U.S. Nuclear Regulatory Commission, Region 1 Date Full Compliance Will Be Achieved Full compliance will be achieved by January 31, 1979.

Very truly yours,

( [* - W A. W. Wofford Vice President