ML20009A879

LER 81-014/03L-0:on 810606,during Surveillance insp,non- Penetrating Cracks Were Found in Divider Barrier Seal.Cause Unknown.Defective Portions of Seal Replaced

ML20009A879
Person / Time
Site:	Cook
Issue date:	07/01/1981
From:	Piehl R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20009A877	List: ML20009A876 ML20009A879 ML20009A885
References
LER-81-014-03L-01, LER-81-14-3L-1, NUDOCS 8107140400
Download: ML20009A879 (1)

Text

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NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION /j (1-11l

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. . LICENSEE EVENT REPORT 4

CONTROL BLOCK: l 4

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 7

o i 8 9 l MI LICENSEE Il Dl Cl CODE Cl 1l@l 14 16 0 l Ol -l 0 l 0l 0 l 0 l 0 l -l 0 l 0 l@l LICENSE NUMutR 2!' 4 l 1LICkNSE 26 l 1 l TYPE1l 1Jol@lhlLAT68 l l@

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REPORT DATE

/ 8 60 61 DOCKET NUMBER EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h

, 10l2ll DURItG SURVEILLANCE INSPECTION PER T.S. 4.6.5.9, CRACKS WERE IDENT'FIED IN ]

g 3 g THE DIVIDER BARRIER SEAL. THE CRACKS DID NOT PENETRATE THE SEAL AND THE l

o y,; ; SEAL INTEGRITY REMAINED INTACT. PUBLIC HEALTH AfD SAFETY WERE NOT AFFECTED. ]

o 3 g SIMILAR EVENTS WERE REPORTED AS RO 80-014/03L-0 AND 79-029/03LO AND FOR l 0 6 l DOCKET 05000316 AS RO-81-012/03L-0, 79-043/03X-1. i I

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35 2 31 40 41 42 43 44 l CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l li10ll THE DEFECTIVE PORTIONS OF THF SEAL (APPROXIbMTELY 30 LINEAR FEET) WERE __j

', REPLACED. THE SPECIFIC CAUSE OF THE CRACKS COULD NOT BE DETERMINED. DUE  ;

i i l TO THE NUMBER OF PREVIOUS FAILURES, THE CRACKED PORTION OF THE UNIROYAL

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3807 SEAL WAS REPLACED WITH A DIFFERENT CURE OF UNIROYAL 3807. l I

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REMASED OF REM ASE LOCATION OF RELEASE

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