ML20084A012

RO 76-08:on 760227,39 Steam Generator Tubes Explosively Plugged in Steam Generator a & 2 in Steam Generator B.Tubes Exhibited Tube Wall Deterioration in Excess of 40%

ML20084A012
Person / Time
Site:	Ginna
Issue date:	02/23/1976
From:	Platt C ROCHESTER GAS & ELECTRIC CORP.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20084A001	List: 05000244/LER-1976-008-01, /01T:on 760227,during Planned Current Insp of Steam Generator tubes,39 Tubes in Steam Generator Inlet a & 2 Tubes in Steam Generator Inlet B Showed Defects Above Wastage Limit.Caused by Corrosion ML20084A012
References
RO-76-08, RO-76-8, NUDOCS 8304050067
Download: ML20084A012 (1)

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t ROCl! ESTER GAS AND ELECTRIC CORPORATION e 69 EAST AVENUE, ROCHESTER, N.Y.14649 WP

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Mr. James P. O'Reilly U. S. Nuclear Resulttery Cec: mission Directorate of Rec.tlatory Operations Region 1 631 Park Avenue King of Prussin, Pennsylvanin 19406

Subject:

Reportable Occurrence d76-03:

Abnorssi Degradation of Steam Generator Tubcs

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Dear Mr. C'Heilly:

6 This is to confir= ny phone ec11 to Mr. John Hannon, en Febr.:ary 27, 1976, to I:

I' report Abnormal Occurrence t'T6-OS at Ginna Station.

1 A progren of planned ecdy current examination vas conducted on both lo:p "A" ff i

and "S" ctcar goncretors et the Ginna Station fras February 15th to Februtry i

i; 27,1916, 6 tring the present refueling turbine rentenance outage.

progran specified extainations at LO3 KEZ to detcet and =casure potential j!

This I;

tube defects and at 25 DIZ to provide a profile of sludge deposits.

l A 100 percent inspection of both steam generators (hot and cold less) van s

i performed.

! the "A" stcan cencrt. tor and 2 in the "B" ntean 6enerator.As a result of this effort, 39 tubes were explosively plj These tubes had l cxhibited tube vall deterioration in ereess of 40 percent.

I Very truly yours, k

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Cleles E. Platt Superintendent CEP:dg i

I Mr. G. J. Svarthout, RGLE Corp.

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Mr. L. D. k'hite. Jr., RGLE Corp. '

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