ML19259D691

LER 79-030/01T-0:on 791002,rigid Hanger Failed Due to Contact Between Two of Four Bolts & Base Plate.Caused by Improper Installation.Two shell-type Bolts Were Replaced W/ wedge-type Bolts & Plate Washers Were Installed

ML19259D691
Person / Time
Site:	Peach Bottom
Issue date:	10/17/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19259D684	List: ML19259D683 ML19259D691
References
LER-79-030-01T, LER-79-30-1T, NUDOCS 7910260255
Download: ML19259D691 (1)

Text

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h G1 EH GH to 14 OtFOR1 DAIL hO EVENT DESCHIPTION AND PRODABLE CONSLQUENCES h (o >1 1 The inspection program beinr, performed in response to IE Bulletin 79-02 1 g 3 identified rinid hanger, 3-14-GB-S6 as failed due to contact bett c,two j jo 4 [ of four bolt shells and the base plate. This hanger supports a portion J

[g 3 g of the Unit 3 "B" Loop Core Spray discharge line. The reduction of this j jo g hanger sa fety factor to 1.95 has rainimal safety significance because Unit 1

gj, l 3 reactor is in the cold chtttdown conditiot. for re fuelin . l Io a  !  !

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