05000293/LER-1981-029-03, /03L-0:on 810617 & 18,RBV Sample Pump a Tripped. Caused by Internal Pump Friction Due to Normal Wear.Pumps Rebuilt & Spare Pump Installed

/03L-0:on 810617 & 18,RBV Sample Pump a Tripped. Caused by Internal Pump Friction Due to Normal Wear.Pumps Rebuilt & Spare Pump Installed

ML20009E798
Person / Time
Site:	Pilgrim
Issue date:	07/17/1981
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009E796	List: 05000293/LER-1981-029, Forwards LER 81-029/03L-0 05000293/LER-1981-029-03, /03L-0:on 810617 & 18,RBV Sample Pump a Tripped. Caused by Internal Pump Friction Due to Normal Wear.Pumps Rebuilt & Spare Pump Installed
References
LER-81-029-03L, LER-81-29-3L, NUDOCS 8107280454
Download: ML20009E798 (1)

LER-1981-029, /03L-0:on 810617 & 18,RBV Sample Pump a Tripped. Caused by Internal Pump Friction Due to Normal Wear.Pumps Rebuilt & Spare Pump Installed

Event date:
Report date:
2931981029R03 - NRC Website

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NRC FOP"3 366 U. S. NUCLEAR REGULATORY COMMISSION (7 77)

LICENSEE EVENT REPORT O

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8 60 61 DOCKET huMBER 68 69 EVENT DATE 14 75 REPORT 0 ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h Io I2l l On June 17, 1981 and again on June 18, 1981 RBV Sample Pumn

'A' tripoed. On both I

t o lal i occasions the pump had a blown fuse. Af ter the first trip the fuse was renlaccd 1

10141 l and the pump restarted. Approxima tely 19 hours2.199074e-4 days <br />0.00528 hours <br />3.141534e-5 weeks <br />7.2295e-6 months <br /> later the fuse blev ngnin-Tha f> > c ol l o i s I L w s replaced but lasted only hour before blowing. At that time the pump was re-l Io is l l moved and the installed spare placed in service.

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40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS l1 I o l l The blown fuses were caused by internal pump friction due to normal wear.

The shortl li t i j l life expectancy for this and other similar pumps is addressed by n s cho diil o d I

,,,,, l program of rebuilding and by installation of spare numns.

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PDR ADOCK 05000293 l

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M. T. McLoughlin pgang:

NAME OF PREPARER