ML20137C364

Forwards,For Info & action,AEOD/C504, Case Study Rept on Loss of Safety Sys Function Events. Results of Study Should Be Transmitted to Industry by Ie.Nrr Review of Qualifications Development Programs Recommended

ML20137C364
Person / Time
Site:	Calvert Cliffs, Crystal River, 05000000
Issue date:	12/30/1985
From:	Heltemes C NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD)
To:	Harold Denton, Taylor J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE), Office of Nuclear Reactor Regulation
Shared Package
ML20137C367	List: ML20137C364 ML20137C385 ML20137C408
References
NUDOCS 8601160295
Download: ML20137C364 (2)

Text

s DQ[ l PI) S

/ UNITED STATES

! o NUCLEAR REGULATORY COMMISSION

y WASHINGTON, D. C. 20555

..... E 8 0 1985 MEMORANDUM FOR: Harold R. Denton, Director Office of Nuclear Reactor Regulation James M. Taylor, Director Office of Inspection and Enforcement FROM: C. J. Heltemes, Jr. , Director Office for Analysis and Evaluation of Operational Data

SUBJECT:

CASE STUDY REPORT - LOSS OF SAFETY SYSTEM FUNCTION EVENTS The Office for Analysis and Evaluation of Operational Data has finalized its case study of events involving a total loss of safety system function (LSSF).

The study identified 133 LSSF events in the 1981 to June 1984 time period, 87 of which (65%) were the result of human factors contributions. The final y report addresses the peer review comments provided by NRR, IE, Region II, INPO, B&W Owners Group, Baltimore Gas and Electric Company (Calvert Cliffs), and Florida Power Corporation (Crystal River 3). We have enclosed a copy of our final report for your information and appropriate action.

Although the study found no evidence of any previously unrecognized safety problems, it did find that ever the time period considered in the study there is no clear evidence of improvement in preventing loss of safety system events.

Therefore, it is recommended that IE feed back the results of the study to industry. In addition, it is recommended that NRR review training and qualifications development programs to ensure the programs adequately consider the types of personnel actually involved in LSSF events.

If you or your staff have any questions regarding this report, please contact Gene Trager of my staff. Mr. Trager can be reached at (301) 492-4495.

• - W.s 1 C . Heitemes M ., Director Of' for Analysis and Evaluation of Operational Data

Enclosure:

As Stated D

S

Harald R. Denton, et al. If you or your staff have any questions regarding this report, please contact Gene Trager of my staff. Mr. Trager can be reached at (301) 492-4495.

Original nigned by C. J. IIolteen, Jr.

C. J. Heltemes, Jr. , Director Office for Analysis and Evaluation of Operational Data

Enclosure:

As Stated cc w/ encl:

W. Dircks, EDO D. Queener, NSIC V. Stello, ED0/DEDROGR J. Buchanan, NOAC J. Roe, ED0/A0 R. Borsum, B&W

.T. Rehm, ED0/A0 C. Brinkman, CE J. Sniezek, ED0/DEDR0GR L. Gifford, GE E. Blackwood, DEDR0GR P. Docherty, W R. Minogue, RES T. Murley, R-I J. Nelson Grace, R-II Distribution:

J. Keppler, R-III /PDR R. Martin, R-IV AE00 SF J. Martin, R-V AE00 CF D. Eisenhut, NRR NAS CF H. Thompson, NRR J. Heltemes, AE00 F. Miraglia, NRR T. Ippolito, AE00 R. Bernero, NRR K. Black, AEOD T. Spets, NRR E. Trager, AE0D W. Russell, NRR J. Funches, NRR G. Holahan, NRR E. Jordan, IE B. Grimes, IE J. Partlow, IE '

E. Rossi, IE J. Gagliardo, IE R. Baer, IE H. Faulkner, IP F. Gillespie, RES Resident Inspectors at Sites Listed in Appendix A 0FC :NAS D/A  :  :

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NAME :ETrager:eh :KBlack :TAlppo ito :C ltemes  :  :  :

DATE$12/9/85 7 $12/ /85 $12/17/85 :12/ W 85  :  :  :

OFFICIAL' RECORD COPY