ML19256F351

LER 79-038/01T-0:on 791120,during Review of Surveillance Test,Two MSIVs in a Steamline Closed in Times Shorter than Specified in Tech Specs.Caused by Operator Not Recognizing Fast MSIV Closure Time.Operator Procedure Revised

ML19256F351
Person / Time
Site:	Peach Bottom
Issue date:	12/06/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19256F347	List: ML19256F346 ML19256F351
References
LER-79-038-01T, LER-79-38-1T, NUDOCS 7912180591
Download: ML19256F351 (1)

Text

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o s [ roached during a main cteamline icolation. The average isolation time l o io l for all h lines wac more than 2.8 cecondo. The trancient analycic chowc I o / l no cignificant effecta for a 3 cecond icolation, therefore it is be- 1 o n [ lieved 2.8 coconds would be within the concorvatica of the analycia. J 7 g 9 ho LY';1 E V CAULL C A L'.E C O '.' P COLC COOL LUdCODE LOWuNt N T LOOL wuCLat  :,'.M VOEJ L u ts C to o I cl Dj@ LAj@ I A l@ l vl Al LI v l 0 l P_j@ Ic l@ l zl @

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,_q g and the applicable procedure hac been reviced to prevent recurrence. j i d 9 12 1 l l M la ii V pg t li st;Il Or L I A l t r, s 1% /vl 11 Ol6tl iq . l A lie j lji'.t. U V 4 H Y I H'.L() s t H Y L L',Ci t iP 11(3N I l, E_b] [ Ej@ ( 0{7l $j@[ n/A l [ B l@l Performine; curveillance test

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