ML20128P871

Review of PRA for Shoreham Nuclear Power Plant, Monthly Highlights for Jan 1984

ML20128P871
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	01/31/1984
From:	Kato W BROOKHAVEN NATIONAL LABORATORY
To:	Thadani A, Thandani A Office of Nuclear Reactor Regulation
Shared Package
ML20127A367	List: ML20127A363 ML20127A500 ML20127A968 ML20127B005 ML20127B638 ML20127B641 ML20127B709 ML20127B780 ML20127C153 ML20127C469 ML20127C607 ML20128P302 ML20128P388 ML20128P861 ML20128P871 ML20128P892 ML20128P901 ML20128P921 ML20128P941 ML20128P963 ML20128P984 ML20128P988 ML20128P994 ML20128Q012 ML20128Q031 ML20128Q051 ML20128Q062 ML20128Q089 ML20128Q101 ML20128Q225 ML20128Q285 ML20128Q299 ML20128Q313 ML20128Q366 ML20128Q388 ML20128Q409 ML20128Q435 ML20128Q448 ML20128Q467 ML20128Q477 ML20128Q492 ML20128Q502 ML20128Q508 ML20128Q520 ML20128Q524 ML20128Q535 ML20128Q846 NUREG-0771, Responds to FOIA Request for Documents Re Severe Accident Source Term Data.App a Documents Placed in Pdr.App B Documents Available in Pdr.App C Documents Withheld (Ref FOIA Exemption 5)
References
CON-FIN-A-3366, CON-FIN-A-3740, FOIA-85-199 NUDOCS 8507130324
Download: ML20128P871 (3)

Text

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J=--aI h '.; 3 BROOKHAVEN NATIONAL LABORATORY g

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Upton. Long Island. New York 11973 lt (516)282x 2444

]Jt . Departmentof NuclectEnergy FTS 666/

d February 16, 1984 Dr. A. C. Thadani, Chief Reliability and Risk Assessment Branch f:

f Division of Safety Technology 0 ~ 0ffice. of Nuclear Reactor Regulation h Mail Stop P-216 U.'S. Nuclear Regulatory Commission I

. Washington, D. C. 20555 q

Dear Dr. Thadani:

3 Enclosed is the January monthly report for the activities sponsored by your Branch. Also included are the computerized budget summaries and the fee recovery cost status for each program requiring it. I would suggest that you

.i and your staff review the reports to determine whether there are any dis-j crepancies. If there are, please notify the principal investigator.

a Note that the funds allocated for FIN A-3366 are spent and that the NRC program office was informed of this February 15, 1984 as required by revised i Manual Chapter 1102, dated September 24, 1982. Please send the balance of expected funds so that the level of effort may continue without . interruption,

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<j There was an inadvertent overcharge of $17 to FIN A-3393 in January, .

q which will be credited to the program.

3-

' ~;' The total amount of unbilled costs through January for FIN A-3366 is

$26,612, which will be billed to NRC when the expected funds are received.

l; We hope this meets with your approval. If there are any questions re-dj . garding format, distribution, or budget reporting, please contact Mr.

1} A. J. Weiss, Administrative Technical Assistant, FTS 666-4473.

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q incerely yours, WYK/jw Walter U Kato l$ Enclosures Deput ' airman

!, .cc: R. A. Bari, BNL

[ F. Coffman, NRC D. J. Corley, NitC

! R. Frahm, NRC 8507130324 850426 e

l;. R.-E. Hall, BNL PDR FOIA

'- F. Rowsome, NRC BELAIR85-199 PDR l'

J. Veillette, NRC A. J.~ Weiss, BNL NRCTechnicalMonitors% THIS COPY FOR p BNL Technical Monitor 1

L A

Division of Safety Technology - NRR January 1984 i

. -) Total Projected Funds Obligated Balance of Funds ($K)

L;N No. Project Cost ($K) To Date ($K) FY 1984 FY 1985 FY 1986 A-1366 436 290 121 25 A-37?S 1000 650 350 A-3726 330 230 90 10 A-3709* 45 45 . 0

). A-3740 270 170 100 A-3758 405 375 0 30 i

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MONTHLY HIGHLIGHTS FOR JANUARY 1984

" Review of the Probabilistic Risk Assessment for the Shoreham Nuclear Power Plant"

[ (FIN A-3740)

BNL Principal Investigator: I. A. Papazoglou (FTS 666-2435) 4 i NRC Program Manager: A. Thadani, Reliability and Risk Assessment c

Branch NRC Technical Monitor: Ed Chow, 9 u and Branch 14 sili+I4 FOA l Risk Assessment THIS CO

1. Scope / Purpose The purpose of this project is to review those aspects of the Shoreham PRA leading to the estimates of the frequencies of the accident sequences re-sulting in a " core vulnerable" state and to detennine the accuracy of these estimates.

l l 2. Schedule / Milestones A letter of the findings will be submitted to NRC at the completion of each j task according to the following schedule.

l Task 1: Draft Report 4/15/84 i Task 2: Questions to the Applicant 11/31/83

Task 3

Final Report Two months af ter. receiving final comments by NRC and licensee.

3. Progress to Date A telephone conference call was established between BNL, NRC, LILCO, and LILCO's consultants to di scuss the Q-1 questions on January 13. BNL re-

'i ceived from LILC0 a set of operating and emergency procedures. The de-2 velopment of the revised transient event trees was completed. The review

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of the LOCA event trees and the support system event trees continued. The

,1 review of internal flood event trees and initiating event frequencies was initiated. Success criteria review and initiator grouping for ATWS events

.l were initiated.

, 4. Problems and Delays None.

5. Next Reporting Period All BNL revised event trees will be completed. Quantification of sequences using the core damage fault tree approach will be initiated. Review of internal flood will continue.

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