ML19224D334

LER 78-067/03L-0 on 781112:while Performing Procedure HNP-2-5202 on 2B21-N017B,instrument Found to Be Out of Tolerance.Caused by Setpoint Drifting by as Much as 8 Inches.Instrument Replaced

ML19224D334
Person / Time
Site:	Hatch
Issue date:	11/27/1978
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19224D329	List: ML19224D328 ML19224D334
References
LER-78-067-03L, LER-78-67-3L, NUDOCS 7907110407
Download: ML19224D334 (1)

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EVENT DESCRIPTION AND PROB ABLE CONSEOuENCES 10 g With the reactor in the Run mode, while performing procedure HNP-2-5202 on . i g l 2921-N017B, the instrument was found to be out of tolerance. (Technical Specification l g l 3.3.2, Table 33.2-1). The acceptable tolerance range is plus cr minus 0.3 inches of g g l the 60 inch range. The other channel was operable and there were no effects to  ;

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CAUSE DESCRIPTION AND CORRECTIVE ACilONS h B l The instrument was out of tolerance due to the setpoint drif tino by as much as 8 i B l inches. When the instrument could not be cali trated ' correctly, it was replaced and I y I procedure HNP-2-5202 per'ormed satisfactorily. I Bl '

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