05000324/LER-1980-036-03, /03L-0:on 800418,main Turbine Control Valve Fast Closure Test Failed to Meet Required Response Time.Caused by Slow Actuation Time on Installed Switch.Switch Replaced

/03L-0:on 800418,main Turbine Control Valve Fast Closure Test Failed to Meet Required Response Time.Caused by Slow Actuation Time on Installed Switch.Switch Replaced

ML19309H947
Person / Time
Site:	Brunswick
Issue date:	05/14/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309H937	List: 05000324/LER-1980-036, Forwards LER 80-036/03L-0 05000324/LER-1980-036-03, /03L-0:on 800418,main Turbine Control Valve Fast Closure Test Failed to Meet Required Response Time.Caused by Slow Actuation Time on Installed Switch.Switch Replaced
References
LER-80-036-03L, LER-80-36-3L, NUDOCS 8005200693
Download: ML19309H947 (1)

LER-1980-036, /03L-0:on 800418,main Turbine Control Valve Fast Closure Test Failed to Meet Required Response Time.Caused by Slow Actuation Time on Installed Switch.Switch Replaced

Event date:
Report date:
3241980036R03 - NRC Website

text

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U. S. NUCLE AR RE2ULATC RY COMMISSION WRC FCT4 366 1777)

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REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h ITTT'l l Main Turbine control valve Fast Closure test (P.T. 4 5.1. h f, f i nd to meet the l

Io I3I I required response time of 5 0.08 seconds.

The actual response time was.38 seconds.1 I o i 41 1 This is the fourth tia.= the P.T. has failed during its initial performance. The l

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last failure was reported on LER No. 2-79-18.

This event in no way effected the I

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.076 seconds. An Engineering b'ork Request (78-38) has been generated to evaluate I

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