ML20086S449

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Corrections to AO-S2-74-09 Re Steam Generator Support Couplings.Studs Not Welded to Encl Plate as Previously Reported Due to Potential Welding Problems
ML20086S449
Person / Time
Site: Surry  Dominion icon.png
Issue date: 03/26/1975
From: Stallings C
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: Moseley N
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20086S454 List:
References
AO-52-74-09, AO-52-74-9, NUDOCS 8403020365
Download: ML20086S449 (1)


Text

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A ELECTHIC AND Powna Cox,av Ricun own.Va notx A 20201 March 26,k975 Mr. Norman C. Moseley, Director Serial No. 474 Of fice of Inspection and Enforcement P0&M/JTB:c1w United States Nuclear Regulatory Commission Region II - Suite 818 Docket No. 50-281 230 Peachtree Street, Northwest License No. DPR-37 Atlanta, Georgia 30303

Dear Mr. Moseley:

In our letter of December 16, 1974, Serial No. 321, we forwarded Abnormal Occurrence Report No. A0-S2-74-09, " Steam Generator Support Couplings." Reported herein is a correction to the report.

On page 12 of the aforementioned report it is stated that the stud which had been cut off to facilitate the removal of the inboard coupling on Unit No. 2 would be welded to the end plate.

Because of potential welding problems this was not done. As indicated in the report, analyses verify that this does not significantly affect the design function of the coupling since the remaining nine studs can withstand the design loads.

Regulatory staff members were made aware of this change in a meeting held in Bethesda, Maryland, on January 7, 1975. Members of your Staff were advised of the action during the installation of the couplings. The purpose of this letter is to update the record.

Very truly yours, l0-l lib 1 }Q C. M. Stallings Vice President-Power Supply and Production Operations cc: Mr. K. R. Goller

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