ML19208B864
| ML19208B864 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 08/20/1979 |
| From: | Lainas G Office of Nuclear Reactor Regulation |
| To: | Reid R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19208B865 | List: |
| References | |
| NUDOCS 7909210512 | |
| Download: ML19208B864 (1) | |
Text
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UNITED STATES yg e (' ; ;
NUCLEAR REGULATORY COMMISSION WASHINGTO N, D. C. 20555 5,,;
s,,f AUG 2 01979 MEMORANDUM FOR:
Robert W. Reid, Chief, Operating Reactors Branch #4, Division of Operating Reactors FROM:
G. Lainas, Chief, Plant Systems Branch, Division of Operating Reactors
SUBJECT:
DAVIS-BESSE 1:
EVALUATION OF THE ELECTRICAL, INSTRUMENTATION AND CONTROL (EI&C) ASPECTS OF THE ALTERNATIVE TO KEYLOCK CONTROL TOBYPASSVALVES(TAC 10999)
In accordance with your request per TAC 10999, enclosed is the Plant Systems Branch Safety Evaluation Report pertaining to the Davis-Besse 1 analysis of design modification alternatives for the present key lock control in the manual bypass valves around the decay heat removal suction line valves.
We find
-th,e proposed design modifications to be acceptable.
l' h&
.f G. Lainas, Chief Plant Systems Branch Division of Operating Reactors
Enclosure:
Safety Evaluation Report cc w/ enclosure:
D. Eisenhut B. Grimes W. Gammill P. Check G. Vissing G. Lainas D. Tondi P. Shemanski PSB Section A CONTACT:
P. Shemanski Ext. 28077 2%
saa,p 2900210572)