05000368/LER-1979-036-03, /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

/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: 05000368/LER-1979-035-03, /03L-0 on 790514:during Mode 3,emergency Feedwater Flow Control Valve Failed to Open or Respond to Demand Signal.Similar to LERs 50-368/78-028 & 50-368/78-009. Caused by Pressure Switch Malfunction.Switch Repaired 05000368/LER-1979-036-03, /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 ML19273B939
References
LER-79-036-03L, LER-79-36-3L, NUDOCS 7906180576
Download: ML19273B952 (1)

LER-1979-036, /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

Event date:
Report date:
3681979036R03 - NRC Website

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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 (PLEASE PRINT OR TYPE ALL RtQUtRED INFORMATIONI i

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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

temergency feedwater supply valve, 2CV-1038-1, to e,3 i

ISteam Generator 2E24A, did not meet its limiting value O

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,of stroke time as required by procedure 2106.06, cis

,o gjisupplement III.

The valve was declared inoperable.

o 11 IThere have been no similar occurrences.

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