ML19309F181

LER 80-007/03L-0:on 800310,during Surveillance Testing of Standby Liquid Control Pumps,Standby Liquid Control Pump 1B Would Pump Only 36.5 Gpm at 1,215 Psig.Caused by Wear & Pitting to Seating Surface

ML19309F181
Person / Time
Site:	Cooper
Issue date:	03/25/1980
From:	Ballinger P NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19309F176	List: ML19309F175 ML19309F181
References
LER-80-007-03L, LER-80-7-3L, NUDOCS 8004280579
Download: ML19309F181 (1)

Text

. .

NRc FQRM 366 U. S. NUCLEAR REGULATO3Y COMMISSION (7 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l l l l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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OATE EVENT DESCRIPTION AND PROB A8LE CONSEQUENCES h l o 121 During surveillance testing of the Standbv Licuid control (stc) nn-ns. stc pu-n "1 R" I

,g,,, yould pump 36.5 gpm at 1215 psig. Tech. Spec. Section 4.4.A.2.b requires the SLC l ig i, pystem to provide 38.2 gpm at 1215 psig from each pump. The redundant pump, SLC Pump l l n , ,, j ','1A", was tested for proper capacity and was operable. At the time of this occur- I

• 10 y 1 pence the SLC System was not required to be operable bv the Tech. Specs. There were i 10 l 7 l po significant occurrences as a result of this event and there were no adverse l lola] pffects to public health and safety. I 60 7 ,g 9 System CAUSE CAUSE COYP VALVE CODE CODE SL8 CODE COVPONENT COOE SUSCODE SUSCODE

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43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h W BLC Pump "1B" is a Union Pump Tvoe TD-60 TRIPT FY. Tnnonction revealed nitting and l 1 1 kear of the inte rn ni nuction nnd dinnhnren unluna nf tn h nu-n- Tk4e n 1 1 -o A ked I i s i .> i Eeakage through the pump suction valve thereby reducine oumo caoacity. The valve I W beating surfaces were machined as ner ouro instruction -nnuni and ref nnen11 nd in l W

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