ML20010E138

LER 81-031/03L-0:on 810807,612-ft Elevation Containment Inner Airlock Door Interlock Was Found Inoperable During Containment Entry.Caused by Broken Cable.Cable Replaced

ML20010E138
Person / Time
Site:	Cook
Issue date:	08/25/1981
From:	Wizner D INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20010E127	List: ML20010E126 ML20010E134 ML20010E138 ML20010E143
References
LER-81-031-03L-01, LER-81-31-3L-1, NUDOCS 8109030133
Download: ML20010E138 (2)

Text

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HE FOH T D A T E EV ENI DF 5CHIPTION AND PROB ABLE CnNSEQUENCLS h 1

l o l f] l DURitr, A CONTAINMENT ENTRY, THE 612' ELEVATION CONTAINMENT INNER AIRLOCK l DOOR INTERLOCK WAS FOUND INOPERABLE. THE INTERLOCK PREVENTS OPENItG THE l ,

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y ,,y INNER # D OUTER DOOR SIMULTANEOUSLY. THE AIRLOCK WAS DECLARED INOPERABLE j pp PER T.S. 3.6.1.3. THE ACTION REQUIREMENTS WERE MET. BOTH DOORS WERE l

g j ,, j j MAINTAINED CLOSED UNTIL REPAIRS WERE COMPLETED. PUBLIC HEALTH AND SAFETY [

L gg WERE NOT AFFECTED. ALTHOUGH THIS WAS THE FIRST OCCURRENCE OF A BROKEN l gp INTERLOCK CABLE, PREVIOUS OCCURRENCES OF INOPERABLE DOOR INTERLOCKS (CONTINUED . .)l

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[ 'o)) THE INTERLOCK WOULD NOT ' UNCTION DUE TO A BROKEN CAB;E. THE CABLE. W. J. WOOLEY l DWG. NO. 30230, PIECE NO. 52, WAS REPLACED AfD THE INTERLOCK WAS TESTED. THE I 4

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i l SUPPLEMENT TO LER9 81-031/03L-0 l SUPPLDfNT TO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES:

I WERE REPORTED AS R0; 79-004/03L-0 AND FOR DOCKET NO. 050-0316; 79-031/036-0; 79-016/03L-0, 78-066/03L-0 AND; 78-014/03L-0.

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