ML17216A401
| ML17216A401 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 01/09/1986 |
| From: | Thadani A Office of Nuclear Reactor Regulation |
| To: | Woody C FLORIDA POWER & LIGHT CO. |
| References | |
| NUDOCS 8601220421 | |
| Download: ML17216A401 (4) | |
Text
Docket Nos.
50-335 NRC 8 Local PDR ACRS (10)
FMiraglia and 50-389 STL File
- JPartlow PKreutzer BGrimes
'Sells AThadani PWR8 Reading EJordan Do'cket File.---,,
Mr. C. 0.
Woody Group Vice President Nuclear Energy Florida Power
& Light Company P. 0.
Box 14000 Juno Beach, Florida 33408
Dear Mr. Woody:
SUBJECT:
REPORTS ON PRA INSIGHTS Enclosed are two draft reports concerning technical insights gained from Probabilistic Risk Assessments (PRAs).
These reports are the outcome of an
'ngoing effort to make available and utilize in numerous technical and managerial activities the information in probabilistic risk assessments 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 systems, components and events.
These reports will be published in their final forms in approximately two months.
These reports are being provided to you, as well as all other licensees, in advance of formal publication for your information.
If, after reviewing these
- reports, you wish to provide comments to the staff, please provide them by February 10, 1986.
BSO>a2042<
SSO>oe PDR ADOCK 05000335' PDR
Enclosures:
As Stated cc w/o. enclosures:
gee next page Sincerely,
/S/
Ashok Thadani, Director PWR Project Directorate 88 Division of PWR Licensing -
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/86 PBD88 AThadani t /
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Mr.
C '0 KoaCy.
Florida Power 5 Light Company St. Lucie Plant CC:
Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tallahassee, Florida 32304 Res ident In s pector c/o U.S.
NRC 7585 S.
Hwy AIA Jensen
- Beach, Florida 33457 State Planning 5 Development Clearinghouse Office of Planning 8 Budget Executive Office of the Governor The Capitol Building Tallahassee, Florida 32301 Harold F. Reis, Esq.
Newman 5 Holtzinger 1615 L Street, N.W.
Washington, DC 20036 Norman A. Coll, Esq.
McCarthy, Steel, Hector and Davis 14th Floor, First National Bank Building Miami, Florida 33131 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Mr. Weldon B. Lewis, County Administrator St. Lucie County 2300 Virginia Avenue, Room 104 Fort Pierce, Florida 33450 Mr. Charles B. Brinkman, Manager Washington - Nuclear Operations Combustion Engineering, Inc.
7910 Woodmont Avenue
- Bethesda, Maryland 20814 Mr. Allan Schubert, Manager Public Health Physicist Department of Health and Rehabilitative Services 1323 Winewood Blvd.
Tallahassee, Florida 32301 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Executive Director for Operations 101 Marietta Street N.W., Suite 2900 Atlanta, Georgia 30323
t vi I