ML20010A627

LER 81-032/03L-0:on 810705,during Normal Operation,Automatic Reactor Scram Occurred on Low Reactor Water Level.Caused by Time Delay Due to Malfunctioning HPCI Controller.Controller Replaced & New Controller Tested Properly

ML20010A627
Person / Time
Site:	Nine Mile Point
Issue date:	08/04/1981
From:	Neild R NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010A620	List: ML20010A619 ML20010A627
References
LER-81-032-03L, LER-81-32-3L, NUDOCS 8108110617
Download: ML20010A627 (1)

Text

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l0 l2l l Caring a nonmal sitatdown operation, a manual Ltip of tite turbine geneAator g a y ., y l initiated tite HPCI system. Tite HPCI conttolle t malfunctioned, causing a time delatt i Tite time delay caused an automatic g o g,l l before tite flow conttal valves opened.

l y reactor scram on low reactor water level. All HPCI components worked property l o ,

g g a go y l af te1 tite time delay of about 60 seconds.

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