ML19312D413

Final Deficiency Rept Re Feedwater Check Valves.Check Valves Will Not Be Modified But Replaced W/Rockwell Intl Control Closure Piston Check Valves.Installation Should Be Completed by 801031

ML19312D413
Person / Time
Site:	Summer
Issue date:	02/25/1980
From:	Crews E SOUTH CAROLINA ELECTRIC & GAS CO.
To:
References
NUDOCS 8003240367
Download: ML19312D413 (1)

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February 25, 1980 g I g.<n 2-/ ,

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Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission Region II, Suite 3100 -

101 Marietta Street, N. W.

Atlanta, Georgia 30303

Subject:

Virgil C. Summer Nuclear Station Reported Item in Accordance with 10CFR50.55(e) - Feedwater Check Valve Ref: E.H. Crews to J.P. O'Reilly dated 9/27/79 E.H. Crews to J.P. O'Reilly dated 12/26/79 Nuclear Engineering File 3.1051 Dtar Mr. O'Reilly:

In the latest referenced letter we agreed to inform you "on the status of the matter at approximately 60 day intervals until the problem is resolved".

We have decided not to attempt to modify the existing check valves, but to replace them with Rockwell International control closure piston check valves.

These valves have been purchased and a six month delivery promised. The pres-sure surge of these valves is within acceptable limits and it is being included in the stress analysis, nata 11ation should be completed by October 31, 1980.

This is considered I linal report on this subject.

V r' truly yours, E. H. Crews, Jr. r ACA:EHC:rh 30/7 ss 00 8003240 367 DCIAL C0Fy