ML19257D854

LER 80-006/03L-0:on 800103,during Normal Startup,Control Rod 26-07 Had No Position Indication at Notch 48.During 800109 Startup,Rod 34-35 Had No Indication at Notch 7.Caused by Faulty Reed Switches in Prototypical Inlet Piping Probes

ML19257D854
Person / Time
Site:	Brunswick
Issue date:	01/29/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19257D853	List: ML19257D852 ML19257D854
References
LER-80-006-03L, LER-80-6-3L, NUDOCS 8002060622
Download: ML19257D854 (1)

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')d 69 EVENT OATE 74 75 AEPOH T DATE HQ 7 5 63 68 OOCK E T U**S t a EVENT DEZPIPTICN AND PAOB ABLE CONSEQUENCES h o 2 During a normal reactor startup. control rod 26-07 had no position indication st I o 3 l notch 48. On a subsequent startup on January 9, 1980. control rod 34-35 had no I o .i l indication at notch 7. J I

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CAUSE CESCRIPTION AND CORRECTIVE ACTIONS i . l The problem is believed to be faulty reed switches in the PIP probes. These problems l l 1il l will be corrected during the next outace of sufficient lencth for a drvwell entrv.  !

i l Engineering is evaluating these' switches to determine if a generic problem exists.

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