ML19273B952

LER 79-036/03L-0 on 790514:during Mode 3,emergency Feedwater Supply Valve Did Not Meet Required Limiting Value of Stroke Time.Caused by Tripper Bar Pickup Out of Adjustment & Low Oil Level.Repairs Made

ML19273B952
Person / Time
Site:	Arkansas Nuclear
Issue date:	06/12/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19273B940	List: ML19273B939 ML19273B946 ML19273B952 ML19273B960
References
LER-79-036-03L, LER-79-36-3L, NUDOCS 7906180576
Download: ML19273B952 (1)

Text

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NRC F ORM 366 E7 771 U. S. NUCLE AR REGUL ATORY COMMISSION LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOC 80 [ l l l l l lh i 6

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EVENT DATE 24 it taEPOHT O ATE 80 EVENT DESCRIP7 0N AND PROBAOLE CONSEQUENCES h o 12 IDuring Mode 3 operation, it was observed that i e ,3 temergency feedwater supply valve, 2CV-1038-1, to i

O ., ISteam Generator 2E24A, did not meet its limiting value l cis ,of stroke time as required by procedure 2106.06,  ;

,o gjisupplement III. The valve was declared inoperable. ,

o 11 IThere have been no similar occurrences. i

, , Reportable per T.S.6.9.1.9 (b).

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lE [2 l 9 l 9Jg de di C At;5E DESCR# TION AND CORRECOVE ACTIONS h iic IThe unit was nlaced in Mode 5 operation, due to an unrelated I i, i iproblem, meeting the requirement of Action Statement T.S.3.7.1.2. ,

,,,i Investigation revealed the tripper bar pickup was out of ,

,,,3 l adjustment and that oil level was low. It was inspected for leaks, but i

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[none were located. Repairs were made, retest gave acceptable stroke time.;

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