ML19208B471

LER 79-029/03L-0:on 790816,high Temp Alarm Received for Charging Pump 1C Because River Water Supply Valve to Charging Pump Speed Increaser Was Left Shut.Caused by Failure of Personnel to Return Charging Pump to Svc

ML19208B471
Person / Time
Site:	Beaver Valley
Issue date:	09/14/1979
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19208B470	List: ML19208B469 ML19208B471
References
LER-79-029-03L, LER-79-29-3L, NUDOCS 7909200376
Download: ML19208B471 (1)

Text

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n.m LICENSEE EVENT REPORT-CONTROL BLOCK: l l l l l 0

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QlP 7 8 9 l A lLICENSEE 3 l VCODE l 5 l 1 l@l 0 l 0 l- l 0LICENSE I4 16 l 0 lNUMeER0 l 0 l 0 l- l 025l 0 26l@[ LsCENSE 4 1l1l1l1l@l 11PE JQ l

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REPORT DATE 7 8 60 63 DOCK ET NUMBE R b8 69 EVENT DATE le EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l At 0635 hours0.00735 days <br />0.176 hours <br />0.00105 weeks <br />2.416175e-4 months <br />, the 1C Charging Pump was started for an operability verification .J o 3 following maintenance. At 0738 hours0.00854 days <br />0.205 hours <br />0.00122 weeks <br />2.80809e-4 months <br />, a high temperature alarm was received for the l o 4 l 1C Charging Pump thrust bearing. The IC Charging Pump was shutdown at 0742 hours0.00859 days <br />0.206 hours <br />0.00123 weeks <br />2.82331e-4 months <br />. An l o s l investigation revealed - river water supply valve to the charging pump speed increaser l l TIT] l had been inadvertently lef t shut following* maintenance. l o 7 l j O 8 l ]

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31 y32 KEN A T ON O PL NT t MOURS SS IT D FOR1 8. $UPPLI MAN FACTURER (H,j@l 33 J4 Zl@ l35Z l@ (_Z__jh 36 31 0 l0 l0 l0 l 40 J@

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43 44 Z l 9 l 9 l 9l@ 4; CAUSE DESCRIPTION AND CORRECTl"E ACTIONS h g l The incident resulted f rom a failure of Maintenance and Operations perscnnel to insure l

@l the charging pump was returned to service satisfactorily following ma'intenance l 7 I activities. 'The personnel involved received written reprimands for their actions.

m l All Maintenance and Operations personnel were apprised of the incident and its l

, 4 l consequences. l 7 8 s so ST S  % POWER oTHER STATUS IS O RY DISCOVERY DESCP J TION W W h l0l0l0l@l N/A l l B lhl Surveillance test af ter aaintenance l ACTIVITY CO TENT -

REttAsEO OrRELEAst LOCATION OF RELEASE ITTil' l' Z l @ '(2]@l Av0VNT N/A OF" ACTIVITY l

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I 9 IO 08 69 80 3 NAME OF PREPAnER

• UN PHONE.

412-643-1258

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