ML19343B402

LER 80-031/01T-0:on 801126,water Collected in Offgas Rad Monitor Sampling Sys,Reducing Flow.Caused by Recent Drain Mod Combined W/Pressure Variations Due to Load Change.Water Purged & Full Sample Flow re-established

ML19343B402
Person / Time
Site:	Peach Bottom
Issue date:	12/12/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19343B401	List: ML19343B400 ML19343B402
References
LER-80-031-01T, LER-80-31-1T, NUDOCS 8012230358
Download: ML19343B402 (1)

Text

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EVENT DESCRIPTION AND PROD A6LE CONSEQUENCES 9l Following a power reduction, water collected in the off-gas rad monitor j gjj sampling system reducing sample flow on 11/23/80. Even with reduced flow j y-] [ shift supervision believed the system was operable. Prompt action was l U-~] l taken to purge the system of water. Full sample flow was reestablished l M.jj L 11/2h/80 AM. Primary coolant rad monitors showed no unexpected changea l

I i j !_ during event. Also, there would have been ample time to detect and pre- l Ei J 9 vent release of hi rad gas if it existed during the event. I SYSTEM CAUSE CAU5E COVP. VALVE CODE CODE SUSCCDE COMPONE NT CODE SU8 CODE SUuCODE T[T} l B l B10 l@ .I B l@ 12l A l@ l13 Il Nl S l T l R l U lh l 19E l@ l Z l@

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L I a period of time during the event. It has been determined that the water l Tg i problem was caused.by a recent drain mod combined with pressure varia- g 9l tions due to the load change. The water was purged and full sample flow j Rl reestablished by 11/2h/80 AM. The drain line will be modified. j e 9 60 1  % PGWER OTHEH S T ATUS DISC ti Di'3COVEltY OLLCHIP TION

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