05000219/LER-1982-039-03, During Surveillance Testing,Thermocouple for Safety Valve NR28J Found Inoperable.Caused by Terminal Screw Backing Out,Causing Intermittent Contact & Erratic Readings.Screw Replaced

During Surveillance Testing,Thermocouple for Safety Valve NR28J Found Inoperable.Caused by Terminal Screw Backing Out,Causing Intermittent Contact & Erratic Readings.Screw Replaced

ML20063N231
Person / Time
Site:	Oyster Creek
Issue date:	09/10/1982
From:	Sobel C GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20063N224	List: 05000219/LER-1982-039, Forwards Updated LER 82-039/03X-1.Detailed Event Analysis Encl 05000219/LER-1982-039-03, During Surveillance Testing,Thermocouple for Safety Valve NR28J Found Inoperable.Caused by Terminal Screw Backing Out,Causing Intermittent Contact & Erratic Readings.Screw Replaced
References
LER-82-039-03X, LER-82-39-3X, NUDOCS 8209200111
Download: ML20063N231 (1)

LER-1982-039, During Surveillance Testing,Thermocouple for Safety Valve NR28J Found Inoperable.Caused by Terminal Screw Backing Out,Causing Intermittent Contact & Erratic Readings.Screw Replaced

Event date:
Report date:
2191982039R03 - NRC Website

text

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UPDATE REPORT - PREVIOUS REPORT DATE, AUGUST 2 1982 0

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$9 EVENT DESCRIPT40N AND PROSASLE CONSEQUENCES h During surveillance testing, the thermocouple for safety valve NR28J was o e i found to be inoperable. The acoustic monitor for this valve and the two gi adjacent valves were all operable, and the setpoint of one of the adjacent Ioi.i l i monitors was reduced in accordance with Tech. Spec. section 3.13.B.2.

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CAUSE DESCRIPTION AND CORHEC(IVE ACTIONS iiioi l The cause of thermocouple failure was due to a terminal screw backinn I

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