ML20245B750

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Forwards Engineering Evaluation Rept on BWR Overfill Events Resulting in Flooding of Steam Lines.Potential for Equipment Damage Believed to Exist & Any Damage Occurring Should Be Fixed Prior to Restart
ML20245B750
Person / Time
Site: Dresden, Nine Mile Point, Oyster Creek, Columbia, LaSalle, 05000000
Issue date: 04/15/1989
From: Novak T
NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD)
To: Kane W, Norelius C, Reyes L
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20245B622 List:
References
NUDOCS 8904260254
Download: ML20245B750 (1)


Text

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APR 151988 MEMORANDUM FOR: William F. Kane, Director DISTRIBUTION:,

Division of Reactor Projects, Region ! PDR DSP R/F Louis Reyes, Director JKauffman Division of Reactor Projects, Region II Glanik JRosenthal Charles Norelius, Director MWilliams Division of Reactor Projects', Region III KBlack VBenaroya L. Joseph Callan, Director CHeltemes Division of Reactor Projects Region IV EJordan SEbneter Dennis Kirsch, Director MTaylor Division of Reacter Safety WLanning and Projects, Region V ERossi FROM: Thomas M. Novak, Director Division of Safety Programs, AE00

SUBJECT:

BWR OVERFILL EVENTS RESULTING IN MAIN STEAM LINE FLOODING Enclosed for your information is an AE0D Engineering Evaluation report on BWR overfill events that have resulted in the flooding of steam lines. These-events have occurred at several BWRs .and have potential safety significance.

The study found that little actual damage has been experienced as a result of this type event. However, we do believe that the potential for equipment 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 not adequately address or assess all the significant safety concerns associated with these events, we believe regional personnel should monitor licensee actions prior to plant restart following these events.

Or'igin:t1 Signed by:

Thomas 1.!. Novak Thomas M. Novak, Director Division of Safety Programs, AEOD

Enclosure:

As stated

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