05000325/LER-1981-002-03, /03L-0:on 810114 & 0212,reactor Protection Sys Logic relays,C71-K3D & K3E,did Not de-energize When MSIV 1-B21-F028B Was Closed.Caused by Sticking Valve Position Limit Switch Actuator Arm Cam.Switch Replaced

/03L-0:on 810114 & 0212,reactor Protection Sys Logic relays,C71-K3D & K3E,did Not de-energize When MSIV 1-B21-F028B Was Closed.Caused by Sticking Valve Position Limit Switch Actuator Arm Cam.Switch Replaced

ML19345F934
Person / Time
Site:	Brunswick
Issue date:	02/12/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19345F930	List: 05000325/LER-1981-002, Forwards LER 81-002/03L-0 05000325/LER-1981-002-03, /03L-0:on 810114 & 0212,reactor Protection Sys Logic relays,C71-K3D & K3E,did Not de-energize When MSIV 1-B21-F028B Was Closed.Caused by Sticking Valve Position Limit Switch Actuator Arm Cam.Switch Replaced
References
LER-81-002-03L-01, LER-81-2-3L-1, NUDOCS 8102190564
Download: ML19345F934 (1)

LER-1981-002, /03L-0:on 810114 & 0212,reactor Protection Sys Logic relays,C71-K3D & K3E,did Not de-energize When MSIV 1-B21-F028B Was Closed.Caused by Sticking Valve Position Limit Switch Actuator Arm Cam.Switch Replaced

Event date:
Report date:
3251981002R03 - NRC Website

text

NHC FOEM 366 U. S. BUCLE AR REGULATORY CO*..:.WSION (7 77)

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fJ EVENT OESCRIPTION ANO PROBABLE CONSEOUENCES h I o i 21 lDuring the performance of Main Steam Line Isolation Valve Closure Functional Test.

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I o I.: l lMSIV l-B21-F028B ucs closed. The "A" RPS channel was then placed in the "trioped" I

go,3j l position as required by technical specifications. This event occurred acain en l February 12, 1981, and a similar past event was reported in LER l-80-75.

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i 3 g l o j 71 idid not affect the health or saf ety of the public.

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