05000298/LER-1980-021-03, /03L-0:on 800622,while Performing Routine Surveillance Test procedure,6.3.9.4,MSIV-86A Was Found to Have Closing Time Faster than Tech Spec Allowance.Caused by Setting MSIV-86A Too Close to Fast Limit During Shutdown

/03L-0:on 800622,while Performing Routine Surveillance Test procedure,6.3.9.4,MSIV-86A Was Found to Have Closing Time Faster than Tech Spec Allowance.Caused by Setting MSIV-86A Too Close to Fast Limit During Shutdown

ML19344E086
Person / Time
Site:	Cooper
Issue date:	07/22/1980
From:	Mayer D NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19344E079	List: 05000298/LER-1980-021, Forwards LER 80-021/03L-0 05000298/LER-1980-021-03, /03L-0:on 800622,while Performing Routine Surveillance Test procedure,6.3.9.4,MSIV-86A Was Found to Have Closing Time Faster than Tech Spec Allowance.Caused by Setting MSIV-86A Too Close to Fast Limit During Shutdown
References
LER-80-021-03L, LER-80-21-3L, NUDOCS 8008260602
Download: ML19344E086 (1)

LER-1980-021, /03L-0:on 800622,while Performing Routine Surveillance Test procedure,6.3.9.4,MSIV-86A Was Found to Have Closing Time Faster than Tech Spec Allowance.Caused by Setting MSIV-86A Too Close to Fast Limit During Shutdown

Event date:
Report date:
2981980021R03 - NRC Website

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60 61 DOCK ET NUMB ER 68 69 EVENT OATE 14 75 REPORT OATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h F6T21 [Ihe reactor was operating at 48% rated thermal power. While performing routine sur-l 10 l a l Iveillance test procedure 6.3.9.4, MSIV-86A was found to have a closing time faster l lo l4 l Ithan allowed by T.S. 3.7.D. Seven of the eight MSIV's were within the Tech. Spec.

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g l time for MSIV-86A. Other corrective action was to add closing limit to S.P. 6.3.9.4 l lfor shutdown condition. The valve is an air operated Rockwell Edwards 24" angle l,i3i m l globe valve, model #1612-JMMNY. Ralph A. Hiller Co. supplied the air oper. #SA-A051.

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