ML20004E929

LER 81-013/01T-0:on 810520,low Flow from Two Motor Driven Auxiliary Boiler Feed Pumps at Hot Shutdown Discovered During Surveillance Testing.Caused by New Trim in Generator Level Control Valves Restricting Auxiliary Feedwater Flow

ML20004E929
Person / Time
Site:	Indian Point
Issue date:	06/03/1981
From:	Rosh D CONSOLIDATED EDISON CO. OF NEW YORK, INC.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20004E928	List: ML20004E927 ML20004E929
References
LER-81-013-01T, LER-81-13-1T, NUDOCS 8106160186
Download: ML20004E929 (2)

Text

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-ji plant cooldown was initiated. The trin of the four (4) valves was [

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Attachment 1 Docket No. 05000247 Consolio$ted Edison of 'N.Y., Inc.

LER 81-013/OlT-0 Indian Point Unit No. 2 During testing of the motor driven auxiliary boiler feed pumps, flow from the pumps was less than required flow. The plant was at hot shutdown conditions. There were no adverse con-sequ6nces caused by the pump not producing the required flow.

1 New feedwater regulating valve trim in four (4) lines leading to the steam generators, was installed during the Cycle 4/5 refueling and maintenance outage and was determined to be the cause of the restricted feedwater flow. A plant cooldown was initiated. The valve trim in each valve was modified to correct the condition. The test was re-run with each motor driven auxiliary boiler feed pump, and the data indicated that each pump met flow requirements.

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