05000298/LER-1980-005-03, 1-0:on 800116,during Normal Operation,Two through-wall Cracks in Welds in Radiant Energy Conversion North Critical Loop Discovered.Caused by Intergranular Stress Corrosion.Welds Will Be Replaced

1-0:on 800116,during Normal Operation,Two through-wall Cracks in Welds in Radiant Energy Conversion North Critical Loop Discovered.Caused by Intergranular Stress Corrosion.Welds Will Be Replaced

ML19290F041
Person / Time
Site:	Cooper
Issue date:	02/13/1980
From:	Doan P NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19290F034	List: 05000298/LER-1980-005, Forwards LER 80-005/03L-0 05000298/LER-1980-005-03, 1-0:on 800116,during Normal Operation,Two through-wall Cracks in Welds in Radiant Energy Conversion North Critical Loop Discovered.Caused by Intergranular Stress Corrosion.Welds Will Be Replaced
References
LER-80-005-03L, LER-80-5-3L, NUDOCS 8003170492
Download: ML19290F041 (1)

LER-1980-005, 1-0:on 800116,during Normal Operation,Two through-wall Cracks in Welds in Radiant Energy Conversion North Critical Loop Discovered.Caused by Intergranular Stress Corrosion.Welds Will Be Replaced

Event date:
Report date:
2981980005R03 - NRC Website

text

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8 60 61 DOCKE T NUM8 E R 68 69 EVENT OATE 14 75 REPORT D ATE 8f 3 EVENT DESCRIPTif)N AND PROB ABLE CONSEQUENCES h A [During normal operation, a routine tour of the plant indicated two through-wall g

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43 44 47 CAUSE DESCRIPTf oN AND CORRECTIVE ACTIONS h lThe component involved is a weld. The failure is a through-wall crack caused by in-o Itercranular stress corrosion. The welds have been evaluated acceptable for con-I i

1 ltinued service. During the next shutdown of suf ficient length the welds will be re,

l placed. An analysis is continuing to determine future corrective action by General l 3

L'Li] l Electric. An updated report will be submitted.

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