05000324/LER-1980-034-03, /03L-0:on 800307,while Performing Visual Insp of Accessible Snubbers,Snubbers 2G41-1SS22,2SW-175SS166 & 2E41-2SS105 Found Inoperable.Caused by Pipe Clamp Slippage, Missing Locking Pin & Leaking Shaft Seal,Respectively

/03L-0:on 800307,while Performing Visual Insp of Accessible Snubbers,Snubbers 2G41-1SS22,2SW-175SS166 & 2E41-2SS105 Found Inoperable.Caused by Pipe Clamp Slippage, Missing Locking Pin & Leaking Shaft Seal,Respectively

ML19309B918
Person / Time
Site:	Brunswick
Issue date:	04/04/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309B914	List: 05000324/LER-1980-034, Forwards LER 80-034/03L-0 05000324/LER-1980-034-03, /03L-0:on 800307,while Performing Visual Insp of Accessible Snubbers,Snubbers 2G41-1SS22,2SW-175SS166 & 2E41-2SS105 Found Inoperable.Caused by Pipe Clamp Slippage, Missing Locking Pin & Leaking Shaft Seal,Respectively
References
LER-80-034-03L, LER-80-34-3L, NUDOCS 8004070337
Download: ML19309B918 (2)

LER-1980-034, /03L-0:on 800307,while Performing Visual Insp of Accessible Snubbers,Snubbers 2G41-1SS22,2SW-175SS166 & 2E41-2SS105 Found Inoperable.Caused by Pipe Clamp Slippage, Missing Locking Pin & Leaking Shaft Seal,Respectively

Event date:
Report date:
3241980034R03 - NRC Website

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LICENSEE EVENT REPORT J

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7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT 68 COM'T 10IiI l L @l 0 l 5 l 0 l - l 0 l 3 l 2 l 4 @l 0 l 310 l7 l 8 l 0 l@l 0 l 4 l 0 l 4 l 8 l 0 l@

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8 60 61 DOCKET NUMBER 68 69 EVENT OATE 74 75 REPOR T D ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o l 21 l While performing PT 19.6.0.2. Visual Insoection of Accessible Snubbers. the following I [olal l snubbers were found inoperable:

1) 2G41-ISS22 on the RHR suction from fuel pool j

lo l4 l l cooling, 2) 2SW-175SS166 on the 2A RHR heat exchanger discharge, and 3) 2E41-2SS105 j

l o I s l l on the discharge of HPCI.

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l o 17 I I Technical Specifications 3.7.5. 6.9.1.9b l

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9 to 11 12 13 18 19 20 SEQUE NTI AL OCCURRENCE REPORT REVISION

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CODE TYPE No.

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l 0l uug 22 23 24 26 27 28 29 30 31 32 KEt ACTO ON PL NT MET HOURS 22 SB T FOR4 B.

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40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS l i j o l l Snubber 2G41-1SS22 was fully extended due to pipe clamp slippage from pipe vibration: l l2SW-175SS166 piston was unscrewed from the shaft due to the locking pin not being i

i i isg2; l installed during manufacture; and 2B41-2SS105 had a low fluid level due to a leaking l

[i[3l l sha ft seal. All snubbers were repaired per manufacturer's specifications.

Snubber l

[i [4 l lsurve111ance will continue per Technical Specifications.

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% POWER OTHER STATUS ISCOV HY DISCOVERY DESCRIPflON W@ l 0l0 l0 l@lNA l

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i 5 ACTIVITY CO TENT HELE ASED OF HELE ASE AVOUNT OF ACTIVITY LOC ATION OF RELE ASE li l6 l W @ [@l NA l

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NAYE OF PREPARER PHONE:

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LER ATTACIDfENT - RO #2-80-034 a.

Facility:

BSEP Unit # 2 Event Date: March 7, 1980.

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The problem with the pipe clamp slipping has been identified on other snubbers in u

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.past inspections. Our maintenance engineers are in contact with the manufacturer s

j to determine a method.to prevent slippage.

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