ML19322E862

LER 80-012/01P-0:on 800328,during Seismic Analysis,Pipe Supports RHR-H-83 & RSW-H-168 Discovered Possibly Inadequate to Support Seismic Load.Caused by Deviations from Hanger Design Details.Mods to Sys Will Be Performed

ML19322E862
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	03/28/1980
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19322E854	List: ML19322E853 ML19322E862
References
LER-80-012-01P, LER-80-12-1P, NUDOCS 8004020362
Download: ML19322E862 (1)

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LICENSEE EVENT REPORT LER 80-12/lP i

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7 8 OOCK E T *4L?.'8 E A 84 3 14 't O ' t EVENT DESCRIPTION AND PAL 3ABLE CONSECUENCES h l o 121 l During the seismic analyses to determine the adequacy of seismic support : as required; I o i 3, lby NRC letter of 10/24/79 and Bulletin 79-14, it was discovered that pipe supports  ;

l,}4l [ RHR-H-83 and RS'4-H-168 may be inadequate to support their seismic load as manufactured y l o 11,l l In accordance with this letter, required modifications will be completed within 7 dayst I o !6 I I EnRineering evaluations have determined that system components are not incperable. l I o I 7 l l Previous failures were reported as RO 79-33/IP and 34/1P. l 1 a !a t i I T d 1 N SYS T E *.1 C A'.,5 E CALSE COYP V A Lv s CCCE CCOE SUSC00E CC" U.T000E SuSCOOE SU3000E la191 7 d l x! xi@ l Bl@ l B l@ l Sl C; PJ Ol Rl Tl@ l Xl@ l Z[ @

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44 CAUSE OESCRIPTION AND CCARECTIVE ACTIONS h l1 10 l I The nnuse of this event is deviations from the langer desinn details. Annropriate 1

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