ML19322B515

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Forwards Revision 4 to Valve Wall Thickness Verification Rept.W/O Encl
ML19322B515
Person / Time
Site: Oconee  
Issue date: 06/03/1974
From: Thies A
DUKE POWER CO.
To: Moseley N
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 7912040547
Download: ML19322B515 (3)


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June 3, 1974 Mr. Norman C. Moseley, Director Directorate of Regulatory Operations U. S. Atomic Energy Commission Region II - Suite 818 230 Peachtree Street, Northwest Atlanta, Georgia 30303 Re:

RO:II:JGD 50-269, -270, -287 Valve Wall Thickness Measurements

Dear Mr. Moseley:

Please find attached for your review Revision 4 to the Oconee Valve Wall Thickness Verification Report. The purpose of Revision 4 is to incorporate data from the Oconee 3 Valve Wall Thickness Verification Program, and to make several minor changes to the text of the report, as follows:

Section 1 - Editorial change Section 3 - Fifth paragraph:

Changed reference to Column 9, Table 1 from " allowable wall thickness" to " material compensated wall thickness" Section 4 - Second paragraph:

Changed 6 percent to 2 percent, plus editorial change Section 5 - Comments added to report i - Revised to incorporate Unit 3 data Appendix A - Added discussion on wall buildup on Velan valves FS/2/51/244 and 245 Appendix B - Added All tables have been appropriately revised to incorporate the above changes.

New calculations by Dresser industri2s for valves 1, 2, and 3 RV67 and the spare valve are included in this revision.

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4, Mr. Norman C. Moseley Pcge 2 June 3, 1974 Picase insert Revision 4 to update and complete your copy of the Oconee Nuclear Station Valve Wall Thickness Verification Report.

Very truly yours, g[ [.d[

A. C. Thies ACT:vr Attachment l

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JUtl ) 0 1974 Letter free Duke Power Company, A. C. Thies, dated Jur.c 3, 1974 -

50-269, 50-270 and 50-287 DISTRIBUTICI:

H. D. Thornburg RO:1Q (4)

Directorate of Licensing (4)

,DR Central Files PDR Local PDR IISIC OIS, OR State i

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