ML20245B642

Forwards Engineering Evaluation Rept on BWR Overfill Events Resulting in Steam Line Flooding.Though Little Actual Damage Experienced,Potential for Equipment Damage Believed to Exist & Any Damage Occurring Should Be Fixed Prior to Restart

ML20245B642
Person / Time
Site:	Dresden, Nine Mile Point, Oyster Creek, Columbia, LaSalle, 05000000
Issue date:	04/15/1989
From:	Rosenthal J NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD)
To:	Rossi C Office of Nuclear Reactor Regulation
Shared Package
ML20245B622	List: ML20245B619 ML20245B642 ML20245B653 ML20245B750 ML20245H960
References
AEOD-E801, NUDOCS 8904260196
Download: ML20245B642 (1)

Text

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f ' AE0D/E801.

.,. * 'MEM0RANDUM FOR: Charles E. Rossi, Director. l Division of Operational Events Assessment Office'of Nuclear Reactor Regulation THRU: Thomas M. Novak,' Director i Division of Safety Programs  !

Office for Analysis and Evaluation l

Of Operational Data 1 FROM: Jack E. Rosenthal,: Chief Reactor Operations Analysis' Branch Division of- Safety Programs Office.for Analysis and Evaluation Of Operational Data

SUBJECT:

BWR OVERFILL EVENTS RESULTING IN STEAM LINE FLOODING Enclosed for your information is an AE0D Engineering Evaluation report on BWR overfill events that have resulted in the floodings of steam lines. These events have occurred at several BWRs and have potential safety significance. 4 The _ study- found that little actual damage has been experienced as a result of I this type of event. However, we do believe that the potential for eouipment damage exists and that any damage which does occur should be fixed prior to restart. Because our review noted some cases.where the initial. licensee review of the event'did n,t adequately address or assess all the safety concerns asso-ciated with these events, we believe' NRC should monitor licensee actions prior to plant restart.

Original signed by Jack E. Rosenthal

' Jack E. Rosenthal, Chief

~ Reactor Operations Analysis Branch Division of Safety Programs i Office for Analysis and Evaluation  !

Of Operational Data j

Enclosure:

. As stated Distribution:

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MWilliams VBenaraya TNovak l CHeltemes i EJordan JJohnson

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• SEE PPfVIOUS CONCURRENCES

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