05000318/LER-1979-009-03, During test,21 Svc Water Heat Exchanger Saltwater Outlet Throttle Valve Failed to Open Upon Receipt of Signal.Caused by Packing Deterioration & Accompanying Seizure to Shaft.Shaft Cleaned

During test,21 Svc Water Heat Exchanger Saltwater Outlet Throttle Valve Failed to Open Upon Receipt of Signal.Caused by Packing Deterioration & Accompanying Seizure to Shaft.Shaft Cleaned

ML20002D926
Person / Time
Site:	Calvert Cliffs
Issue date:	01/20/1981
From:	Carroll J, Pence W BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20002D925	List:
References
LER-79-009-03L, NUDOCS 8101230461
Download: ML20002D926 (2)

LER-1979-009, During test,21 Svc Water Heat Exchanger Saltwater Outlet Throttle Valve Failed to Open Upon Receipt of Signal.Caused by Packing Deterioration & Accompanying Seizure to Shaft.Shaft Cleaned

Event date:
Report date:
3181979009R03 - NRC Website

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8 60 61 DOCKET NUM8ER 6d t>9 EVENT DATE 74 75 REPORT QATE 80 EVENT DESCRIPTION AND PROBABLE CCNSECUENCES h 10121 I Durino nerformance of surveillance testina, 21 service water heat ex-1 FO lT1 l chancer saltwater outlet throttle valve fa4ed to ocen ucon recef ot of I

iO ui I a SIAS sicnal at 1330. The valve was immediate1v ocened with its asso-I ciated handswitch and was maintained ocen until corrective action was I

iO isi I iO is i I comoleted.

22 service water heat exchancer remained fullv coerable i

10171 I throuchout this event. This is not a recetitive occurrence.

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?-CV 000 nneratinn hindrance was carrend hv nackinn dp+nr4nratinn and I

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9haf* wac elpanad re na ctm d and the I

L' 1.2_.) I valve tested satisfactorilv.

FCR 20-0017 and A0 101'1 which add a rub.

I L' L3 J l berlined snooloieco and rubberlined valve unstrean of this valve have I

I L'_L* I I boon imnlemantad and plin;, ate the naad fnr this valva.

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LER NO.

79-09/3L Rev. 1 00CXET NO.

50-318 LICENSE NO. OPR-69 EVENT DATE 2-26-79 REPORT DATE 1-20-81 ATTACH"ENT CAUSE DESCRIPTION AND COR,RECTIVE ACTIONS (CONT'0)_

2-CV-5209 ooeration hindrance was caused b'y cackina deterioration and accocoanyina seizure to shaft. Shaft was cleaned, reoacked, and the valve tested satisfactorily. FCR 80-0017 and 80-1012 which add a rub-berlined spoolcicce and rubberlined valve uostream of this valve have been imnlemented and eliminate the need for this valve. 2-CV-520' das been locked ooen and removed from surveillance test coverace.

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