ML20085F602

RO 74-19:on 740907,personnel Discovered RIA-0707 Steam Generator Blowdown Liquid Monitor Had Not Tripped on High Radiation.Investigation Underway to Determine Cause

ML20085F602
Person / Time
Site:	Palisades
Issue date:	09/09/1974
From:	Dewitt R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Cook R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20085F600	List: ML20085F599 ML20085F602
References
RO-74-19, NUDOCS 8308230051
Download: ML20085F602 (1)

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FAILUHE OF HI A-070 7 STEA.2 d E.iEfi ATOh ul0'iDC'JN - LIQUID -

J:ilIOh TO Ihle ON tiIGH EAVI AT 10N. j

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( Oij 3-6-74 AT 1500 If WAS FOUNu IHAT HIA-0707 STE/A 3ENEhAT0h cLC'J- 4 f JuW.; - LlyJIo - MJNIr0h itAJ NOT THIFFED ON HI3 H hADI ATION. 8 i ..

Inc albst h AulAlION Thle CLOSES THE FOLLOWING ISOLATION VALVES ON v/-u/04, 0 75 t. , U 73 9, 0770 AND 07 71.

j Aoc na0 JE-d EN I10 N1.0 VALVEJ WERE PLACEO IN THE ?:ANUALLY CLOSED

'USIf13N. Tite h IA W AS H D10VED FRO:1 SEhVICE, REPAIRED AND RE-INSTALLEU.

THE QJARTEhLY TRIP TESTS OF ALL PROCESS MONITORS WERE REVIEWED WITH N0 Aran 3Ri4ALITIES OF THIS VsIND BEING NOIED. A QUARTERLY TEST OF THE y,,,, ghMS AND Tiile F UNCT I3NS IS SCHEDULED FOR ThE WEEK OF SEPID:13ER 15.

puninih INJESTI3ATION IS UNJERWAY TO DEiEhMINE ThE CAUSE OF THE iaILunE. _

ihlo iELEA IS t. /0LLOW-UP OF TrtE CONVERSATION WITH MR. F . CC0h AT -

1603 ON 3-6-74 AT PALISADES.

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