05000318/LER-1980-022-03, /03L-0:on 800412,charging Pump 23 Removed from Svc to Repair Weld on Suction Relief Valve.Leak Caused by Vibration Induced Metal Fatigue in Heat Affected Zone of Weld.Leak Repaired & Mods Approved for Charging Pumps

/03L-0:on 800412,charging Pump 23 Removed from Svc to Repair Weld on Suction Relief Valve.Leak Caused by Vibration Induced Metal Fatigue in Heat Affected Zone of Weld.Leak Repaired & Mods Approved for Charging Pumps

ML19309G445
Person / Time
Site:	Calvert Cliffs
Issue date:	04/30/1980
From:	Heibel R, Huseby D BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19309G442	List: 05000318/LER-1980-022, Forwards LER 80-022/03L-0 05000318/LER-1980-022-03, /03L-0:on 800412,charging Pump 23 Removed from Svc to Repair Weld on Suction Relief Valve.Leak Caused by Vibration Induced Metal Fatigue in Heat Affected Zone of Weld.Leak Repaired & Mods Approved for Charging Pumps
References
LER-80-022-03L, LER-80-22-3L, NUDOCS 8005060298
Download: ML19309G445 (1)

LER-1980-022, /03L-0:on 800412,charging Pump 23 Removed from Svc to Repair Weld on Suction Relief Valve.Leak Caused by Vibration Induced Metal Fatigue in Heat Affected Zone of Weld.Leak Repaired & Mods Approved for Charging Pumps

Event date:
Report date:
3181980022R03 - NRC Website

text

um LICENSEE EVENT REPORT 80050602.3 7 CONTROL BLOCK:

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8 80 41 DOCKET NUMSER es 69 EVENT DATE 74 76 REPORT DATE 80 FhENT DESCRIPTION AND PROBA8LE CONSEQUENCES O'o E I flumber 2_3 charging pucp was removed from service to repa!r t weld o's a 1

i suction relief valve. This charging pump was out of service from 1740 April 12.19801 0 2 l until 1800 April 15,1980. The other two redundant charoina oumos were noershle 0 4 I throughout this event. LER 78-49 (U-2) describes a similar event.

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l zone of a weld. The leak has been repaired and a new system desion. modifving I

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g i suction and discharge pipino of both units' charoina namns. has been annrnved l for modification. We anticipate comoletion of these modifications during the I

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