ML20041F182

LER 82-011/03L-0:on 820208,self-cleaning Strainer IS-85B on Suction Line to Screen Wash Pump B for River Water Supply Sys Became Plugged.Caused by Failed Strainer Shear Pin. Strainer Cleared.Baskets,Cap,Gearbox & Shear Pin Replaced

ML20041F182
Person / Time
Site:	Duane Arnold
Issue date:	03/05/1982
From:	Varner D IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20041F179	List: ML20041F178 ML20041F182
References
LER-82-011-03L, LER-82-11-3L, NUDOCS 8203160270
Download: ML20041F182 (1)

Text

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AEPORT QArg 7 4 40 43 COcaL ET NbuSER 48 80 GVGNr QArt le EVENT DESCRIPTION ANO pm08 ASLE CCNSECUENCES h lo s 2l l Durinq normal operation, self-cleaning strainer IS-R5B on the suction li i ra TTl I ne to the 'B' screen wash pump for the river water supply (RWS) system b I Io l Ai lecame pluaged. To restore screen wash flow to the 'B' RWS system traveli I Io isl l ng screen, the bypass line for strainer 15-858 was promptly opened. Oper I t o is i l ability of the RWS system is required by Technical Specification 1.5.J. I 1 o 17 l l The ' A' 1000 of the RWS system remained noerable throuqhout the event. T I I o la i I here have been no previous similar occurrences. I

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liloliThe pluaqed strainer was caused by a failed strainer shear pin. The plua I liliiI and strainer was cleared of blockaqe and the baskets, cap. nearbox. and 1 t i 12 i Ishear pin were replaced. After completion of strainer repairs onerabili i t i 6 il I tv of the strainer was testad satisf actorily. No further correctivo acti i t i 14 1I on is reauired.  !

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