05000254/LER-1981-001-03, /03L-0:on 810105,while Placing Standby Gas Treatment Sys B in Normal Shutdown Lineup,Discharge Valve MO-1/2-7507B Failed to Close When Operated from Control Room.Caused by Worn Breaker Auxiliary Contacts

/03L-0:on 810105,while Placing Standby Gas Treatment Sys B in Normal Shutdown Lineup,Discharge Valve MO-1/2-7507B Failed to Close When Operated from Control Room.Caused by Worn Breaker Auxiliary Contacts

ML19345E978
Person / Time
Site:	Quad Cities
Issue date:	01/20/1981
From:	Soden R COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19345E977	List: 05000254/LER-1981-001, Forwards LER 81-001/03L-0 05000254/LER-1981-001-03, /03L-0:on 810105,while Placing Standby Gas Treatment Sys B in Normal Shutdown Lineup,Discharge Valve MO-1/2-7507B Failed to Close When Operated from Control Room.Caused by Worn Breaker Auxiliary Contacts
References
LER-81-001-03L-01, LER-81-1-3L-1, NUDOCS 8102060480
Download: ML19345E978 (1)

LER-1981-001, /03L-0:on 810105,while Placing Standby Gas Treatment Sys B in Normal Shutdown Lineup,Discharge Valve MO-1/2-7507B Failed to Close When Operated from Control Room.Caused by Worn Breaker Auxiliary Contacts

Event date:
Report date:
2541981001R03 - NRC Website

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60 61 OOCKET NLYSER 68 69 EVENT OATE 74 75 RE* ORT D ATE 8!J EVENT DESCRIPTION AND PROSABLE CONSEQUENCES O'c io l2l l At 9: 10a.m.whileplacingthe"B"StandbyGasTreatmerjysteminano'r' mal: hut-l

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down line-up, discharge valve MO-l/2-7507B failed to close when operated from the gg,,,

Control Room. The "A" Standby Gas Treatment System was demonstrated operable in

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[i13l l "B" Standby Gas Treatment System was returned to service at 1: 30 p.m. on January l-ii14i l 5, 1981.

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