ML19259A971

LER 78-078/03L-0 on 781204:snubber Piston Shaft on Snubber 2SW-174SS174 Was Found Unscrewed from Rod Eye,Making Snubber Inoperable.No Cause Could Be Discerned

ML19259A971
Person / Time
Site:	Brunswick
Issue date:	01/05/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19259A969	List: ML19259A968 ML19259A971
References
LER-78-078-03L, LER-78-78-3L, NUDOCS 7901150082
Download: ML19259A971 (2)

Text

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&J l 2 EVENT l O DATE l 4 l 7 l 8 l@l 0REPORT 14 75 l 1 lDAT 0 E5l7l9l@60 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h o 2 lDuring Auxiliary Orarator rounds on 12/4/78, the snubber piston shaft on snubber i

!o 3 gW-1743S174was found unscrewed from the rod eye, making the snubber inoperable. l o 4 (echnical Specification 3.7.5. I io S I I O G L I o 7 I J 0 H l l 7 g 9 60 SYSTEY CAUSE C A US E COY P. VA LV E COOE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE o 9 lW l A @ lX l@ l Zl@ l S j U l P l 0 l R l T l@ D l@ lZ l@

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44 47 CAUSE DESCRIPTION AND CORRECTIV1 ACTIONS h i o No apparent cause for the snubber becoming unscrewed could be found. The rod eve was i i i l rethreaded to the piston shaf t and tightened in accordance with Bergen-Patterson I

, . Technical Manual instructions. The snubber in the same location on Unit #1 was [

p 3 l checked and no problems were found. This is considered an isolated event and rio l i 4 further corrective action is planned except to inspect the snubber in (continued) l 8 9 80 Si 5 %POV.ER OTHER STATUS ISCO Y DISCCVERY DESCRIPTION i s

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IER SUPPIEFEtir -- RO# 2-78-078 Facility: BSEP Unit #2 Event Date: 12/4/78 Cause Description and Corrective Actions: (continued) accordance with surveillance requirements of the Technical Specifications.

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