ML19221A175
| ML19221A175 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/12/1979 |
| From: | Herbein J Metropolitan Edison Co |
| To: | Ross D Office of Nuclear Reactor Regulation |
| References | |
| GQL-0509, GQL-509, NUDOCS 7905190236 | |
| Download: ML19221A175 (1) | |
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FADS e t o wn, Penn s yl v a ni 3 17057 717 944-4041 April 12, 1979 GQL 0509 Mr. Denwood Ross Assistant Director Division of Reactor Safety U.
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Nuclear Regulatory Commission Washington, D.C.
20555
Dear Sir:
Three Mile Island Nuclear Station Unit 2 (TMI-2)
License No. DPR-73 Docket No. 50-320 Safety Analysis Report for Transition to Natural Circulation (C-D)
Enclosed please find the Safety Analysis Report and preliminary information for the proposed transition to long term natural circulation at TMI-2, as requested a t the Commission Meeting of April 9,~1979.
This report is curreat as of approximately April 9.
The analysis is significant in that it suggests a great deal of flexibility in placing the TMI-2 reactor in a natural circulation mode.
Additional analyses'are continuing to be per formed which will define more specifically the proposed final end point tempera-ture and pressure conditions as well as st.te points in the various supporting plant systems.
Dctail analyses,;nd procedures on the exact methods for achieving natural circulation are also in work.
As additional information becomes available, we will supplement the a ttachment as necessary.
It is our conclusion, from the data in the attachment, that long term natural circulation is a viable way for placing the TMI-2 reactor into a long term stable condition, and the safest of the various options available.
SQicerely, f
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