ML19254D673

LER 79-053/03L-0:on 790928,actuator Arm for Shutdown Cooling Heat Exchanger Outlet Valve 11 Was Found Broken,Rendering Exchanger Inoperable.Caused by Failed Actuator Vane Arm Disconnecting Actuator from Valve Stem

ML19254D673
Person / Time
Site:	Calvert Cliffs
Issue date:	10/25/1979
From:	Lagiewski J, Lucas C BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19254D669	List: ML19254D667 ML19254D673
References
LER-79-053-03L, LER-79-53-3L, NUDOCS 7910290328
Download: ML19254D673 (2)

Text

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LICENSEE EVENT REPORT CONTROL BLOCK: l l l l l l (PLE ASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 l o l i l I "I D i c i c l 'l l 1 jgl5ojoj-l0jojol0;ol-l0;o;g;4l1LICENSE TYPE 14 LICENSE NuYBER 2b 26 1

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80 7 8 60 61 DOCK ET NUMBER 68 63 EVENT DATE 75 RE*CRT D ATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h pq y [ '.'hile inve';tinatinn a raintenance recuest, raintenance rersonnel l lo_ 3 1 dircovered that the actuator ar- for 1-CC-3829 ( 11 hu t,'cun reali ne o 14 l l " eat Exchancer "utlet "alve) was broken, renderina 11 ch i 'a n "r "celire 1 o s t ' feat Exchancer inonerable ner 7.c. 3.6.2.1. The redundant contair-art i O s I snrav syster rar ained nnerable durire the evant. al l c h Wn...n enn14nc I O 7 ] Heat Exchanner was returned to service on 9-2."-79 at 1500, returninc I o a I the containrent snrav svstem to enerabili t i. 63 I

1 8 9 SYSTEM CAUSE CAUSE COY 8 VALVE CODE CODE SUBCODE COYPONENT CODE SLBCODE SUBCODE 7

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,_ SEOUENTI AL CCCU A A E *.CE RESTRT REVISION LED RO EVENT YE AR REPORT NO. CCOE TvPE NO.

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_ 21 27 23 24 26 27 28 23 JJ 31 22 ACTION FUTURE EF8ECT SHUTDOWN ATT ACI eV E'N T *.P R O-4 DRl**E CCYO COYPONENT TAKEN ACTION ON PLANT YETHOD HOURS SUBYlTTED 80RY :>U S. SwpPLIER YANUFACTURER l3 lgl34 l@

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LER fl0. 79 n53/03L EVEtlT DATE 09-28-79 .

"EDnRT DATE 10-25-70 k, il 90CKET t:0. 50-317 dk ,

?) j(AL ATTACH"EfiT CAUSE MSCRIPTIO!1 Ai!D C00RECTIVE ACTIO!!S:

Two ams were received on an e ernencv order and installed on 1-rC-3???

end 1-CC-3326. "5en other ams are received thov will 5e installec c' other valves identical to l-CC-332C.

1223 307