ML20062D635

/03L-0 on 781021:during Startup,Excessive Oper of HPCI Gland Seal Condensate Pump Was Noted.Check Valve 2-23-131 Was Leaking Which Let Condensate Return to Gland Seal Condenser.Valves Were Blocked to Facilitate Repair

ML20062D635
Person / Time
Site:	Peach Bottom
Issue date:	11/20/1978
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
References
LER-78-044-03L, LER-78-44-3L, NUDOCS 7811280225
Download: ML20062D635 (1)

Text

Mr. 82yc2 H. Crier, Director N %. 2 "IS*44/3L*0

' '" Office of Inspection & EnforcGanent, Rytt on !

U.S. Nuclear Regulatory Cmunission 631 Park Avenue -

King of Prussia, PA 19406 -

Ce ar Mr . Gr ier t -

This LER refers to the RPCI system being declared inoperable due to administrative blockage of valves in order to facilitate repairs on a leaking check valve (2-23-131) in the RPCI gland seal pump discharge line. This constitutes operations in the degraded mode and is governed by Technical Specifications 3.5.C.2 and 6.9.2.b.2.

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la I:i I Durint startup operations excessive oeeration of the HPCI riand seal I' o 3 ! condensate pump was noted. Investigation determined that check valve i el 2-23-131 was leaking thus allowing condensate to return to the iland , I' fiTO L seal condenser. Valves on the HPCI pump suction line were blocked closed! l*

g]l in order to perform maintenance on the check valve. HPCI was declared I ioiil l inoperable. surveillance tests were begun on the redundant backuo f l o i a l L- systems as required by Tech spec 4.5.C.2. safety stanificance is minimal. I

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yl Coldner Company. The valve was repaired bv replacine the internals. Me f g L repairs were completed within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and the RPCI systen was declared I yl ope rable. 1 1 !4 1 t I a e 3 ao

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