05000338/LER-1980-013-03, /03L-0:on 800114,while Using Steam Driven Feedwater Pump 1-FW-P-2 to Add Feedwater to Steam Generator A,Water Leaked from Pump Oil Cooler Gasket.Caused by Blown Gasket.Gasket Replaced

/03L-0:on 800114,while Using Steam Driven Feedwater Pump 1-FW-P-2 to Add Feedwater to Steam Generator A,Water Leaked from Pump Oil Cooler Gasket.Caused by Blown Gasket.Gasket Replaced

ML19262C457
Person / Time
Site:	North Anna
Issue date:	02/12/1980
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19262C456	List: 05000338/LER-1980-013, Forwards LER 80-013/03L-0 05000338/LER-1980-013-03, /03L-0:on 800114,while Using Steam Driven Feedwater Pump 1-FW-P-2 to Add Feedwater to Steam Generator A,Water Leaked from Pump Oil Cooler Gasket.Caused by Blown Gasket.Gasket Replaced
References
LER-80-013-03L, LER-80-13-3L, NUDOCS 8002130493
Download: ML19262C457 (2)

LER-1980-013, /03L-0:on 800114,while Using Steam Driven Feedwater Pump 1-FW-P-2 to Add Feedwater to Steam Generator A,Water Leaked from Pump Oil Cooler Gasket.Caused by Blown Gasket.Gasket Replaced

Event date:
Report date:
3381980013R03 - NRC Website

text

NRC FORM 36G U. S. NUCLEAR REGULATORY COMMISSION (7-77)

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While using steam driven auxiliarv feedwater," o 1-FW-P-2 to add feedwater to "A" l

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a result, with the unit in Mode 3, the T ump was secured and removed from service for i o gi repair.

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Virginia Electric and Power Company North Anna Power Station, Unit #1

Attachment:

Page 1 of I Doc ke t No. 50-338 Repor t No. LER 80-013/03L-0

Description of Event

On January 14, 1980 with the unit in hot standby, steam driven auxiliary feedwater' pump 1-FW-P-2 was secured and removed from service When water was observed Icaking from the oil cooler during pump operation.

At the time, 1-FN-P-2 was being used to add feedwater to "A" steam generator.

Probable Ccnsequences of Occurrence The consequences of this event were limited because both motor driven auxiliary feedwater pumps (1-FW-P-3A and 3B) remained available for operation if required.

The ef fects were also minimized by the fact that the operable auxilt,ry feedwater pump was restored to operable status within the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> time

!mit allowed by the Action Statemnet of T.S.

3.7.1.2.

As a result, the alth and safety of the general public were not affected by this event.

There are no generic implications associated with this occurrence.

Cause of Event

The cause of the leak was a blown gasket on the oil cooler for the pump's terry turbine.

Immed ia te Corrective Action The oil cooler gasket was replaced and the auxiliary feedwater pump was re turned to service.

Scheduled Corrective Action No scheduled corrective action is required.

Actions Taken to Prevent Recu rrence No further actions are required.