ML18037A579
| ML18037A579 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/02/1993 |
| From: | Salas P TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9312100092 | |
| Download: ML18037A579 (7) | |
Text
ACCELERATED DISTRIBUTION DEMONS TION SYSTEM Y
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:9312100092 DOC.DATE: 93/12/02 NOTARIZED:
NO FACIL:50-259 Browns Ferry Nuclear Power Station, Unit 1, Tennessee 50-260 Browns Ferry Nuclear Power Station, Unit 2, Tennessee 50-296 Browns Ferry Nuclear Power Station, Unit 3, Tennessee AUTH.NAME AUTHOR AFFILIATION SALAS,P.
Tennessee Valley Authority RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Updates licensee submittal schedule for expanded PRA.
Lz.censee committed to perform expanded PRA,includes ten shared sys 6 considers three units in operation.
DISTRIBUTION CODE:
D030D COPIES RECEIVED:LTR
~ ENCL P SIZE:
TITLE: TVA Facilities Routine Correspondence NOTES DOCKET g
05000259 05000260 05000296 D
RECIPIENT ID CODE/NAME PD2-4 WILLIAMS,J.
COPIES LTTR ENCL RECIPIENT ID CODE/NAME TRIMBLE,D COPIES LTTR ENCL D
D INTERNAL: ACRS OG/LBDCB EG FILE EXTERNAL: NRC PDR 01 NRR/DSSA OGC/HDS3 RES/DE/SSEB/SES NSIC D
NOTE TO ALL"RIDS" RECIPIENTS:
D D
PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) 'TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 16 ENCL
Tennessee Vatfey Authority, Post Office Box 2000. Decatur. Alabama 35609 DEC 02 1993 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of Tennessee Valley Authority Docket Nos.
50-259 50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) - EXPANDED PROBABILISTIC RISK ASSESSMENT (PRA)
References:
1.
TVA letter to NRC, dated February 7,
- 1992, Expanded Probabilistic Risk Assessment (PRA)
Considering Operation of Browns Ferry, Units 1
and 3
2.
NRC letter to TVA, dated July 22,
- 1992, TVA Approach for Addressing Inter-Unit Dependencies as Part of the Individual Plant Examination for the Browns Ferry Nuclear Plant This letter updates TVA's submittal schedule for the expanded PRA.
On February 7,
- 1992, (Reference 1),
TVA committed to perform an expanded PRA, which includes ten shared systems and considers the three units in operation.
At that time, TVA intended to submit a summary report to NRC prior to the restart of Unit 3, but did not consider completion of this work to be a restart prerequisite.
9312100092 "931202 PDR ADOCK 05000259 P
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C U.S. Nuclear Regulatory Commission Page 2
DEC 02 1993 f
TVA and NRC met on May 28, 1992, to discuss TVA's proposed approach for the expanded PRA.
On July 22,
- 1992, (Reference 2),
NRC accepted TVA's commitment to submit a summary report of its expanded PRA.
In its letter, the staff agreed that this report would not be considered a prerequisite for the restart of,Unit 3.,
'However, the staff requested TVA provide formal notification if the scheduled completion date for the expanded PRA would extend beyond the end of 1993 and, if so, provide a revised completion date.
The Unit 3 design effort has now progressed to the point where the expanded PRA effort can, be supported and the development of the expanded PRA is in progress.
The currently scheduled submittal date for the expanded PRA is January 18, 1995.
There are no commitments contained in this letter. If you have any questions, please telephone me at (205) 729-2636.
Sin r Pe ro Salas Manager of Site Licensing cc:
See page 3
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U.S. Nuclear Regulatory Commission Page 3
oEc os 1993 cc:
Mr. R. V. Crlenjak, Project Chief U.S. Nuclear Regulatory Commission Region ZI 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 NRC Resident Inspector Browns Ferry Nuclear Plant Route 12, Box 637
- Athens, Alabama 35611 Mr. J.
F. Williams, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Mr. D.
C. Trimble, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852
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