05000325/LER-1981-047, Updated LER 81-047/03L-1:on 810422:during Local Leak Rate Testing,Discovered Leakage in Primary Containment Isolation valves,1-CAC-V7,V9,V15,V16 & V17.Caused by Corroded Valve Discs.Valves Replaced W/Corrosion Resistant Discs

Updated LER 81-047/03L-1:on 810422:during Local Leak Rate Testing,Discovered Leakage in Primary Containment Isolation valves,1-CAC-V7,V9,V15,V16 & V17.Caused by Corroded Valve Discs.Valves Replaced W/Corrosion Resistant Discs

ML20004C254
Person / Time
Site:	Brunswick
Issue date:	05/28/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004C253	List: 05000325/LER-1981-047, Updated LER 81-047/03L-1:on 810422:during Local Leak Rate Testing,Discovered Leakage in Primary Containment Isolation valves,1-CAC-V7,V9,V15,V16 & V17.Caused by Corroded Valve Discs.Valves Replaced W/Corrosion Resistant Discs
References
LER-81-047-03L, LER-81-47-3L, NUDOCS 8106020412
Download: ML20004C254 (1)

LER-1981-047, Updated LER 81-047/03L-1:on 810422:during Local Leak Rate Testing,Discovered Leakage in Primary Containment Isolation valves,1-CAC-V7,V9,V15,V16 & V17.Caused by Corroded Valve Discs.Valves Replaced W/Corrosion Resistant Discs

Event date:
Report date:
3251981047R00 - NRC Website

text

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LICENSEE EVENT REPORT Previtu3 R;part Dats 5-20-81 i.*

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8 EVENT DESCRIPTION AND PROS ABLE CONSEQUENCES h f Containment Isolation I

.l o 12 ] l During the performance of Type "C" Local Leak Rate Testing o g t valves, ?T 20.3, primary contain' ment isolation valves,1-CAC-V7, V9, V15, V16 and V17 i

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when added to the previousiv known primary con-I o 14 I lwere found to have leak rates that, l

l tainment leak rate, produced a total leakage rate of >.60La for primary containment Iois[

l0 is [ l penetrations and valves. This event did not affect the health or safety of the f

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W twith Plant Modification 79-078, the discs of the five valves will be replaced with The valves will then be l

g l discs of a more corrosion resistant nickel placed design.

them to operation.

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