ML20128P941

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Review of PRA for Shoreham Nuclear Power Plant, Monthly Highlights for Apr 1984
ML20128P941
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 04/30/1984
From: Kato W
BROOKHAVEN NATIONAL LABORATORY
To: Thadani A
Office of Nuclear Reactor Regulation
Shared Package
ML20127A367 List:
References
CON-FIN-A-3740, FOIA-85-199 NUDOCS 8507130342
Download: ML20128P941 (6)
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h BROOKHAVEN NATIONAL LABORATORY Q [ ASSOCIATED UNIVERSITIES, INC.

Upton, Long Island. New York 11973 3

(516)282s Department of Nuclear Energy FTS 666/ 2444

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.l May 16, 1984 J

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.] Dr. A. C. Thadani, Chief j Reliability and Risk Assessment Branch Division of Safety Technology Office of Nuclear Reactor Regulation Mail Stop P-216 1 U. S. Nuclear Regulatory Commission i Washington, D. C. 20555

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Dear Dr. Thadani:

Enclosed is the April monthly report for the activities sponsored by your Branch. Also included are the computerized budget summaries and the fee re-covery cost status for each program requiring it. I would suggest that you and your staff review the reports to determine whether there are any discrepancies.

If there are, please notify the principal investigator.

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" :e that the funds allocated for FIN A-3740 are spent and that the NRC

$ p'ro 'ffice was informed of this May 10, 1984 as required by revised Manual l C'. 4102, dated September 24, 1982. Please send the balance of expected funo. so that the level of effort may continue without interruption.

The total amount of unbilled costs through April for FIN A-3740 is $9,495, which will ue billed to NRC when the expected funds are received.

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

l Weiss, Administrative Technical Assistant, FTS 666-4473.

incerely yours, WYK/jw Walter . Kato Enclosures Deputy hairman cc: R. A. Bari, BNL F. Coffman, NRC T. L. DiCaloma, NRC R. Frahm, NRC 8507130342 850426 R. E. Hall, BNL F. Rowsome, NRC hhgh 199 PDR J. Veillette, NRC A. J. Weiss, BNL NRC Technical Monitors % THIS COPY FOR BNL Technical Monitor -

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Division of Safety Technology - NRR April 1984 l

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Total Projected Funds Obligated Balance of Funds ($K)

FIN No. Project Cost ($K) To Date (SK) FY'1984 FY 1985 FY 1986 4

A-3366 436 431 0 5 ai -

y A-3725 1000 950 50 I A-3728 330 330 0 -

A-3740 284 170 114 A-3758 405 375 0 30

, A-3770 75 0 70 5 1

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MONTHLY HIGHLIGH1S FOR APRIL 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)

.; NRC Program Manager: A. Thadani, Reliability and Risk Assessment

. Branch NRC Technical Monitor: Ed Chow, Reliability and Risk Assessment 4 THis copy ,

, Branch

'j 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 determine the accuracy of these estimates.

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

l Task 1: Draft Report 4 /15/ 84

Task 2
Questions to the Applicant 11/31/83
Task 3
Final Report Two months after receiving final j comments by NRC and licensee.
3. Progress to Date The quantitative review of event trees contined. The core damage tree for the LOSP event is under development and quantification using the SETS code,

! has been initiated. Core damage trees for other transient events are under

~! development.

' !. A final report for the review of the Shoreham Internal Flood PRA was com-pleted and submitted to NRC.

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4. Problems and Delays Owing to delays caused by the extra time devoted to the review of the

" flood-initiator", the diversion of key personnel's time to other RRAB projects with higher priority and the lack of response to our Q-1 questions, the completion date for Task I must be redefined.

2 1 There is still a competing demand for the time of the key personnel by other RRAB projects of higher priority (FIN A-3366 and A-3758). It is, therefore, proposed to stop work on the Shoreham PRA for a period of six 3

weeks resume work on or about June 15, 1984 and complete Task l'by

September 30, 1984.

5. Next Reporting Period o No work is planned for next reporting period.

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CURR n u E p.P Y1 D E;' P F n6 E "i F ulv D b ii G L ' O 1)IRECT di LARICS 96,201 1 5 ., 0 3 8 .

is TRAVEL 6 / F Er/SE5 6 056. ', ,6: 3 Pt,3TFRIAL  ?., 3ERVICES 137 'o 3 131.

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7OTAL 2E, ,6: f t 36%,915 *06 i

.i FL)tJDS RECEIVED 236,419. .

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FEE RECOVER Y COST SroTUS F J rJ . - A-374u

~1 1 T L E . SH0ttErinn PR A REVIEW P Et11U D APIll 1984

't j $ 5 fig 4 IASK/ PLANT P E R l oil C UitillfG I VE A Shorehan Docket 50-322 2 5 , 6 1 /3 . 165,915.

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