ML19309A137
| ML19309A137 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 12/05/1972 |
| From: | Deyoung R US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Davis E SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| Shared Package | |
| ML19309A138 | List: |
| References | |
| NUDOCS 8003260854 | |
| Download: ML19309A137 (1) | |
Text
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UNITED STATES 4
5 ATOMIC ENERGY COMMISSION WASHINGTON. D.C. 20545 Docket No. 50-312 DEC 5 W2 Mr. E. K. Davis, General Counsel Sacramento Municipal Utility District 6201 S Street, P. O. Box 15630 Sacramento, California 95813
Dear Mr. Davis:
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We have reviewed your report, " Final Report on Minor Imperfections Found in Pipe Welds at Rancho Seco Nuclear Generating Station," dated August 31,1972. We agree with the analysis of the problem, actions taken to reduce the probability of occurrence of minor imperfections, and the basic interpretation of the results of the experimental program.
We conclude that pipe welds having " minor imperfections" of the type O
evaluated in this report are acceptable, provided that you furnish additional assurance that such pipe welds possess adequate fatigue strength margins.
Sincerely, f
74
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R. C. DeYoung, Assistant Director 3
for Pressurized Water Reactors Directorate of Licensing I
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