05000325/LER-1979-036-03, /03L-0 on 790602:while Performing Pipe Support Insp,Snubbers in RHR discharge-to-fuel Pool Cooling, Core Spray line-to-vessel & Vessel Head Vent Found Inoperable.Caused by Loose Nut on Hanger Belt

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/03L-0 on 790602:while Performing Pipe Support Insp,Snubbers in RHR discharge-to-fuel Pool Cooling, Core Spray line-to-vessel & Vessel Head Vent Found Inoperable.Caused by Loose Nut on Hanger Belt
ML19261E240
Person / Time
Site: Brunswick 
Issue date: 06/28/1979
From: Tollison A
CAROLINA POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19261E229 List:
References
LER-79-036-03L-01, LER-79-36-3L-1, NUDOCS 7907050329
Download: ML19261E240 (1)


LER-1979-036, /03L-0 on 790602:while Performing Pipe Support Insp,Snubbers in RHR discharge-to-fuel Pool Cooling, Core Spray line-to-vessel & Vessel Head Vent Found Inoperable.Caused by Loose Nut on Hanger Belt
Event date:
Report date:
3251979036R03 - NRC Website

text

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fa 1 e e. u uus er n PER R to t%ENTOME /4 MEPORT D AT E 80 EVENT DESCRIPTION AND PROG ABLE CONSEQUENCE 5 h Io 2 lWhile performing an inspection of pipe supports and hanners in accordance with I. E. I i o,3 l Bulletin 79-07, the following s nubbers were faund inoperable: I o a

1) 1G41-12SS9B, RnR discharge to fuel pool cooling:
2) lE21-2SS31, Core Sprav line to j Ivessel;
3) IB21-44SS138, vessel head vent;
4) 1E11-90SS275, vessel head spray; l

jn s l5) 1PSN-D3SS71, main s team line 'D'. l Lo 6 lo 7 !(Technical Specification 3.7.5_,6.9.1.9b) I I o 4 l g >t[ '.1 Ci f '. E () * ' r} ,_ \\ [ sV DE v,._ t n *J _.Is I CE '.,9,; ; E i ud'UE bo i Sl nI@ l xl@ l x l@ is u le 10 lR Ig@ l ol@ l zl @ 4 I t) 11 1/ 13 19 [ s.[F ;i47 PE \\ ISiCN . r,; /[ .-{' t r _L '. F '.

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i ;o 1E21-2SS31 had slipped due to a nut coming loose on the hanger belt. The snubber was l

l aligned and the nut tightened per procedure. The other four snubbers had a low fluid j

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