ML19305A922

LER 80-007/01T-0:on 800221,during Routine Plant Equipment Insp,Seismically Qualified Backup Nitrogen Bottle Supplies to Five Containment Ventilation Valves Found Out of Svc. Caused by Lack of Operator Info & Equipment Identification

ML19305A922
Person / Time
Site:	Peach Bottom
Issue date:	03/06/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19305A913	List: ML19305A912 ML19305A922
References
LER-80-007-01T, LER-80-7-1T, NUDOCS 8003180582
Download: ML19305A922 (1)

Text

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• Unit. 3 LICENSEE EVL m HEPOHT He po rt. No. 3-80-7/1T CONTHOL ULOClO l l l l l l lQ (PLkASE PHINT OR YYPE ALL REQUIRED int OHMATIONI i

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74 7% REPOHT DAT E NO LVENT DESCHIPTION AND PROGASLE CONSEQUENCES h gl During routine inspection of plant equipment, the seismically cualified I g o 13 g l back-up nitrogen bottle supplies tu five containment ventilstion valves I gl were found valved out of service. Also, a blocking error was discovered I gl which caused the disc seal supply valves to be closed on two of the l

[.O_16_) I unmodified containment ventilation valves. A seismic event could have l O i L caused loss of containment integrity only if additional operator errors I gi occurred and if administrative controls were not adhered to,  !

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44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 li lo l l The cause of this occurrence was due to a lat k of operator information. I gl equipment identification, modification informa tion tran.fer to the I iiiyl l operations group, and procedural deficiencies. All of these problems I i,i:l l have been corrected. l

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p c. a u0 s a./J. Cooney (215) 841-5020 g NAME Of PHEPAHEH , PHONE: .

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