ML20009A725

LER 81-022/03L-0:on 810603,during Refueling Outage,While Performing Local Leak Rate Testing,Reactor Bldg to Torus Vacuum Breaker Valve 68-09 Failed to Meet Tech Spec Requirements.Caused by Worn Seating & Packing Matls

ML20009A725
Person / Time
Site:	Nine Mile Point
Issue date:	07/02/1981
From:	Randall R NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009A720	List: ML20009A719 ML20009A723 ML20009A725
References
LER-81-022-03L, LER-81-22-3L, NUDOCS 8107140012
Download: ML20009A725 (1)

Text

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LICENSEE EVENT REPORT CONTROL 8 LOCK: l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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44 47 33 34 35 36 40 43 CAUSE OESCRIPTION AND CORRECTIVE ACTIONS The cause of this failure is worn seating and packing materials. After mainten- l ji goll ance the valve was successfully local leak rate tested. The site is investigating l g,i,il

,,,,,g a preventative maintenance program such as periodic replacement of rubber goods l g,i3i l to preclude further failures of this Allis Chalmers 30" butterfly valve. l 11 tai l 80 I

7 8 9 STA *6 POWER OTHER STATUS CIS Y DISCOVERY OESCRIPTION 11 i s I [H,,,,,J@ l 0 l o l Ol@l NA TECHNICIAN OBSERVATION l l l Bl@l AbVtTY CO TENT AMQuNTOP ACTIVITY LOCATION OP RELEASE NA NA l RELEASEC@OP

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PuSuEcY 8107140012 810702 NRC WE ONW OESCRIPTION hPDR ADOCK 05000220 issuto insa uei 10 m s eDR i 68 89 i i i i i i i i iiiili80 7.

7 8 9 NAVE OF PREPARER Robert Randall PHONE:

(315) 343-2110, ext. 1594 y