ML19257D804

Final Deficiency Rept Re Failure to Seismically Qualify Differential Pressure Switches on Svc Water Strainers to Control Room Air Conditioners.Switches W/Previous Qualification Will Be Installed Prior to Fuel Loading

ML19257D804
Person / Time
Site:	North Anna
Issue date:	01/18/1980
From:	Stallings C TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
PO-RMT:BAW, NUDOCS 8002060506
Download: ML19257D804 (1)

Text

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January 18, 1980 G g

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s -2 Mr. James P. O'Reilly, Director Serial No. 056 ** '

Office of Inspection and Enforcement P0/RMT:bav D '

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U. S. Nuclear Regulatory Commission Docket No. 50-39

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Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

Pursuant to the provisions of 10CFR 50.55(e), the NRC Region II was notified on December 20, 1979, that the differential pressure switches on the service water strainers to the Unit 2 control room air conditioning chillers were not seismically qualified. These switches (PDS-HV-2228 A

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and B) serve to automatically initiate operation of self-cleaning strainers 2-HV-S-1A and IB on high differential pressure.

Equivalent differential pressure switches, with previous seismic qualifica-tion on file, have been ordered to replace the existing switches. This replacement will be completed prior to initial fuel loading of North Anna 2.

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This report constitutes our final report on this matter. If futher infor-mation is required please contact this office.

Very truly yours,

b. . $/dll$

C. M. Stallings Vice President-Power Supply and Production Operations cc: Mr. Victor Stello, Director Office of Inspection and Enforcement Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation - -- .

1928 260 VOS{

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