ML19209B758

Supplementary LER 79-052 03X-1:on 790728,rod 26-15 Had No Position Indication at Notch 38 & Rod 18-23 Had No Position Indication at Notch 30.Caused by Defective Reed Switches. Switches Replaced.Problems May Be Generic

ML19209B758
Person / Time
Site:	Brunswick
Issue date:	09/28/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19209B755	List: ML19209B754 ML19209B758
References
LER-79-052-03X, LER-79-52-3X, NUDOCS 7910100404
Download: ML19209B758 (1)

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. LICENSEE EVENT REPORT Previous Report Date: 8-24-79 CONTROL OLOCK: l I

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- EVENT DESCRIPTION AND PRO 8 ABLE CONSEQUENCES h O 21 lDuring a normal reactor startup. rod 26-15 had no positien indication at notch 38 and 1 o a rod 18-23 had no position indication at notch 30.

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]g 41 gg 42 l N lg 43 lGl0j8 44 0 lg 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o lBoth rod positions had defective reed switches which were replaced. Both indicating l l i li j i systems were tes ed and returned to service satisfactorily. Due to the increasing l

l 17l l number of indicating problems, an Engineering Work Request has been written to deter- [

j il3l lmine if the position indicating system failures are generic. l l i l 41 1 1 7 8 9 80 STA S  % POV.E R OTHER ST ATU5 S V HY DISCOVERY DESCHIPTION i s l C l@ l 0l 0l 0l@lNA l lA lglOperatorSurveillance l ACTivlTY C NTENT HELEASED O F 84 E L E ASE AYOUNT OF ACTivlTY LOC ATION OF HELEASE i e 8 9 y @ lZ l@ lNA 10 l lNA l 7 11 44 4b 80 PE RSONNEL E MPOSUHLS P.U??B E R TYPE JF SCRipTION -

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