ML20154M303
| ML20154M303 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/06/1986 |
| From: | Lear G Office of Nuclear Reactor Regulation |
| To: | Kober R ROCHESTER GAS & ELECTRIC CORP. |
| References | |
| NUDOCS 8603140019 | |
| Download: ML20154M303 (3) | |
Text
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..A MAR 0 6 1986 Docket No. 50-244 Mr. Roger W. Kober, Vice President Electric and Steam Production Rochester Gas & Electric Corp.
89 East Avenue Rochester, New York 14649
Dear Mr. Kober:
SUBJECT:
REPORTS ON PRA INSIGHTS - (GINNA)
Enclosed are two draft reports concerning technical insights gained from Prcbabilistic Risk Assessments (PRAs).
These reports are the outcome of an ongoing effort to make available and utilize in numerous technical and managerial activities the information in PRAs regarding the factors which dominate the risk associated with nuclear power plants. This effort includes identification of the features of design or operational practices which have been found to be important to safety in the types of plants which have been subjected to risk assessments.
In addition, the section on insights into PRA methodologies focuses on areas which are sensitive to the results and the overall perception of plant weaknesses and vulnerabilities.
In particular, these reports contain discussions of: general insights on plant strengths and weaknesses gained from PRAs; the contribution to core melt frequency from classes of sequences induced by various initiating events; modifications, both hardware and procedural, which have been implemented to address problems identified in the conduct or as a result of PRAs; insights into PRA methodologies; and the contribution to measures of risk (core melt frequency and consequences of radioactive releases) from systerr.s, components and events.
These reports are being provided to you, as well as all other licensees, in advance of formal publication for your information. Your coments and suggestions are welecme on these reports.
Sincerely, George E. Lear, Director Project Directorate #1 Division of PWR Licensing-A l
Enclosures:
As Stated cc: w/o Enclosures See Next Page Office:
LA/ PAD #1 PM/ PAD #14af PD/ PAD #1 Surname: PShuttleworth MFairtile/tg Glear Date:
03/ /86 03/f/86 03/C,/86 N
8603140019 860306 PDR ADOCK 05000244-P PDR
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Rochester Gas and Electric Corporation R. E. Ginna Nuclear Power Plant cc:
Harry H. Voigt, Esquire Mr. Roger W. Kober LeBoeuf, Lamb, Leiby and MacRae Vice President 1333 New Hampshire Avenue, N.W.
Electric and Steam Production Suite 1100 Rochester Gas & Electric Corporation Washington, D.C.
20036 89 East Avenue Rochester, New York 14649 Ezra Bialik Assistant Attorney General Environmental Protection Bureau New York State Department of Law 2 World Trade Center New York, New York 10047 Resident Inspector R.E. Ginna Plant c/o U.S. NRC 1503 Lake Road Ontario, New York 14519 Stanley B. Klimberg, Esquire General Counsel New York State Energy Office Agency Building 2 t
Empire State Plaza Albany, New York 12223 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Supervisor of the Town of Ontario 1850 Ridge Road Ontario, New York 14519 Jay Dunkleberger Division of Policy Analysis & Planning New York State Energy Office Agency Building 2 Empire State Plaza Albany, New York 12223 M
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