ML20003E587

LER 81-035/03L-0:on 810225,during Normal Startup,While Moving Control Rods,Rod Overtravel Annunciator Was Received During Verification of rod-drive Coupling for Rod 30-23. Cause Will Be Determined During Outage

ML20003E587
Person / Time
Site:	Brunswick
Issue date:	03/27/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20003E586	List: ML20003E585 ML20003E587
References
LER-81-035-03L, LER-81-35-3L, NUDOCS 8104060604
Download: ML20003E587 (1)

Text

Nhc FO M 366 U. S. NUCLEAR REGULATORY COMMISE10N (7 77) j

-- - LICENSEE EVENT REPORT ONTROL BLOCK: l l l l l l h (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION!

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7 CON'T MT 7 8 7,] l L @l 0 l 5 l 0 l - l 0 l 3 l 2 l 4edl@l69 0 l EVENT 60 61 COCs ET NUYSER 2 l 215OATE l 811 @l013REPORT 14 75 l 2 DlATE 7 l 8 llj@30 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o , a ; lDuring a normal plant startup while moving control rods, a " rod overtravel" annunciator; This rod f o l a ; Iwas received during the verification of rod-drive coupling for rod 30-23. ,

, o ,, , l and the other rods sy :: metric to it were then . inserted and deactivated in accordance l o i s,j I with plant procedures and technical specifications. This event did not affect the  ;

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o g ijhealth or safety of the public.

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,o,,,, Technical Specifications 3.1.3.6, 6.9.1.9b  ;

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22 J4 JS 06 31 40 42 CAUSE DESCRIPTION AND CCR AECTIVE ACTIONS h l i l o l l During subaequent unit load changes while above the preset power level of the RSCS, ,

Li j i j [ this rod was verifie . dcoupled t i its drive and was declared operable and returned to j During the next ,

1. i#21 I service in accordance with Tect.ical Specification 3.1.3.6a.

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l i j a l I scheduled CRD rebuilding outage, this rod will be inspected to determine if any  ;

I i 14 I 1 irrecularities exist which could have caused the " rod overtravel" annunciator.

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