05000271/LER-1981-011-03, /03L-0:on 810507,during Normal Operation of Reactor Water Cleanup Sys,Leak Discovered in 1x34 Inch Socket Weld Reducing Fitting in tube-side Drain Line of Regenerative Heat Exchanger E-15-1A.Cause Being Analyzed

/03L-0:on 810507,during Normal Operation of Reactor Water Cleanup Sys,Leak Discovered in 1x34 Inch Socket Weld Reducing Fitting in tube-side Drain Line of Regenerative Heat Exchanger E-15-1A.Cause Being Analyzed

ML20004D068
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	06/03/1981
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20004D065	List: 05000271/LER-1981-011, Forwards LER 81-011/03L-0 05000271/LER-1981-011-03, /03L-0:on 810507,during Normal Operation of Reactor Water Cleanup Sys,Leak Discovered in 1x34 Inch Socket Weld Reducing Fitting in tube-side Drain Line of Regenerative Heat Exchanger E-15-1A.Cause Being Analyzed
References
LER-81-011-03L, LER-81-11-3L, NUDOCS 8106080297
Download: ML20004D068 (1)

LER-1981-011, /03L-0:on 810507,during Normal Operation of Reactor Water Cleanup Sys,Leak Discovered in 1x34 Inch Socket Weld Reducing Fitting in tube-side Drain Line of Regenerative Heat Exchanger E-15-1A.Cause Being Analyzed

Event date:
Report date:
2711981011R03 - NRC Website

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. NRC F5M 366 U. S. NUCLEAR REGULATORY COMMISSION (7 7H LICENSEE EVENT REPORT LER 81-ll/3L

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6 60 61 OOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT O ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lo l2l l During normal operation of the Reactor Water Cleanup System, routine operator sur-1 I o l a i l veillance discovered a small leak in a 1" X 3/4" socket weld reducinn fitting in l

I o 141 l the tube-side drain line of Recenerative Heat Exchancer E-15-1A unstream of valve 1

l o ! s 1 LV12-41A. There were no consequences adverse to the public health and safety as a l

l o is I i result of this event.

Similar previous occurrences were reported to the Commission i I o I 7 I l as LER 79-01. 80-37 and 80-41.

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[,l3l l corrective action in this case was to replace the degraded fitting with an I

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