ML19225C803

LER 79-033/01T-0 on 790712:two shell-type Anchors Failed Torque Test.Caused by Improper Installation.Bolts Replaced & Successfully Tested

ML19225C803
Person / Time
Site:	Peach Bottom
Issue date:	07/26/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19225C802	List: ML19225C800 ML19225C803
References
LER-79-033-01T, LER-79-33-1T, NUDOCS 7908020469
Download: ML19225C803 (1)

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EVENT DESCmPTICN AND PAC 0A8LE CONSEGuENCES h I / i 1 Insrection crocram cerformed in response to IE Bulletin. 79-02 identified 1

,, ;two shell type anchors in one support which fc ' led to torque test prop- l 14 [erly. These anchors are associated with the emergency cooling water ]

Ti] l system, which is only used in unusual events such as flood or los? of l i ,, Iconowinzo Pond. LikWhnnd o f w f mi c n"nne nec-f n ; mir sident ,ith I j ,, junusual environmental events is considered highly unlikely. Therefore, t 8

y ; isafety significance is minimal. Similiar occurrence LER 2-79-35/IT. I d 9 SY ST E M cALSE C AME COMP VA6 j[

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44 4i CAUSE CESCP: PTICN AND CORRECTIVE ACTICNS h gj Two of four shell type anchor bolts were improperly installed. The l pnchor bolts failing the test were immediately replaced in accordance __j

, yith tect procedure with wedge type anchors and successf ally tested, t l

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