ML19210C138

LER 79-058/03L-1:on 791004,corrective Maint Performed on Operator for Heat Exchanger Saltwater Outlet Valve.Valve Would Not Open Until 20% Electrical Signal Sent.Caused by Faulty Current to Pneumatic Converter

ML19210C138
Person / Time
Site:	Calvert Cliffs
Issue date:	11/08/1979
From:	Heibel R BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19210C137	List: ML19210C136 ML19210C138
References
LER-79-058-03L, LER-79-58-3L, NUDOCS 7911130320
Download: ML19210C138 (1)

Text

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LICENSEE EVENT REPORT

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3 60 61 OOCKET NLUSE A 68 EVE!IT DESCRIPTION AND PRCS ABLE CONSECUENCESh oi0i l At 1100 on October 4, 1979, #11 Comoonent Coolina Heat Exchancer was I g ,  ; reroved from service to cerform corrective maintenanc? on the ooerator l 0i4  ; #or the Heat Exchancer Saltwater outlet valve (1-CV-5206). The orablen I o,s , with the coerator was corrected and the Heat Exchanger was returned l 0,,  ; to oceration at 1455, October 4,1979. (T.S. 3.7.3.1). This is not a 1 0,7  ; recetitive occurrence. l 018 l 7 8 3 COVP SYSTEM CAUSE CAUSE VALVE COOE COOE SLBCOOE COYFONENT COOE SL9COOE SuaCOOE O19 8

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9 10 11  ?; 13 '1 19 20 SEOL ENTI AL OCCoA8ENCE GEFCRT ret iSICN ga ar EVENT YE A A DEPCATNO. COCE TYPE N O.

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44 47 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS h 0 l Valve 1-CV-5206 would not ocen until a 20" onen elactric=1 einnal was I

,, , cenerated from its controller. This was due to its faulty current to I oneu atic converter. The converter was recalibrated and valve oosition J i 3 l switches were adjusted. The valve had been onerational 'cr- a cafaty

, 4 loverride standcoint. No oreventive action is deered necessarv. I 80 7 a 9 N POWER OTHER STATUS O5 0 Av 015COVERv CESCRIPTION 5t 5 i

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PERSCNNEL EXPOSURES NUMBER TYPE OESCRIPTION l

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• L B L ICITY NRC USE CNLY

• DESCRIPTION N 2 o iSSUEO W81 yf3 7911130 i 68 69 i i iiiiiiii ii 80 3 7 8 9 10

• O bO !P* H220 PHONE: (301)234 7oa 3r7 ooc NAME OF PREDARER