05000219/LER-1981-061, Updated LER 81-061/03X-1:on 811223,of 11 Deficient Hydraulic Snubbers,Nine Found to Be Inoperable During Functional Testing.Caused by Seal Degradation &/Or Worn Poppet Valves. Snubbers Replaced W/Operable Spares

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Updated LER 81-061/03X-1:on 811223,of 11 Deficient Hydraulic Snubbers,Nine Found to Be Inoperable During Functional Testing.Caused by Seal Degradation &/Or Worn Poppet Valves. Snubbers Replaced W/Operable Spares
ML20053D122
Person / Time
Site: Oyster Creek
Issue date: 05/25/1982
From: Bass K
GENERAL PUBLIC UTILITIES CORP.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20053D117 List:
References
LER-81-061-03X, LER-81-61-3X, NUDOCS 8206040102
Download: ML20053D122 (1)
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LER-2081-061, Updated LER 81-061/03X-1:on 811223,of 11 Deficient Hydraulic Snubbers,Nine Found to Be Inoperable During Functional Testing.Caused by Seal Degradation &/Or Worn Poppet Valves. Snubbers Replaced W/Operable Spares
Event date:
Report date:
2192081061R00 - NRC Website
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Update Report - Previous Report Date February 5, 1982 i U.S. huCLEAR AEGWLATOAY CGMMi&&4QN NHC 70RAA 36.

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In addition, several g 19 of tM 11 failed subsecuent functional testina. I ri m I snubbers were found with inappropriate seal material. As a result of 1

.. .. i the inoperable snubbers, the core spray, contairinent soray, isolation 1 o 6 i condenser and shutdown cooling systems may have been in a dearaded mode i re t , l i during a seismic event. 'Ihis event is reportable per Technical Specifi- i

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CAU55 DESCMiPTION AND COHH4C(IVE ACTIONE D

. . ISeal dearadation and/or worn econet valves were determined as the cause i g i of snnhhnr iroperability. All 9 snutbers were replaced with operable i m i spares. Of the 88 snubbers located outside the drywell, 75 are new (1980- i

81) and the remaining 13 will be visually inspected until they are replaced. ,

m i Snubbers with external pipino will be perminently removed frcxn service. i

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SAuE OF PRUARER Ken Bass ,,,es g, (609) 693-6043 8206040102 820525 PDR ADOCK 05000219 S PDR

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