ML19259C124

LER 79-031/03L-0 on 790509:crack Found on 2D1 Feedwater Emergency Spill to Condenser Line & Crack Located on Pipe to Condenser Weld.Caused by Mechanical Failure.Cracked Portion Removed & Rewelded

ML19259C124
Person / Time
Site:	Dresden
Issue date:	06/07/1979
From:	Jansen T COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17173A905	List: ML17173A904 ML19259C124
References
LER-79-031-03L-03, LER-79-31-3L-3, NUDOCS 7906120385
Download: ML19259C124 (1)

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/ 61 DOCKET NUMBER 68 69 EVENT DATE 74 REPORT DATE EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h ,

Iol21 During routine inspection, crack found on the 2D1 feedwater heater emergency spill to l

, 3 , condenser line (2-3509A-6). Crack located at pipe to condenser veld and continued l g , - approximately half way around weld. No previous leaks of this nature have occurred. l g , , Minimal safety significance since the leakaga contained in the turoine building floor l

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43 44 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS l 3 g o l l Precise cause unknown but probably mechanical failure assisted by long term vibration. l i i l Cracked portion of weld removed and rewelded. No further corrective action deemed l

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