ML19271A009

Ro:On 800207,control Rod Withdrawal Inhibit on Intermediate Power Level Period Monitor Set Below Specified Setpoint. Possibly Caused by Inadvertent Movement During Channel Check.Withdrawal Inhibit Adjusted to Proper Setpoint

ML19271A009
Person / Time
Site:	05000054
Issue date:	02/08/1980
From:	Voth M UNION CARBIDE CORP.
To:
References
NUDOCS 8002140504
Download: ML19271A009 (1)

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cly 7400 bein, c on 7 February 1980, Iho control rod w I t heir nwa l i n h 11.i t on the intermediate powor invo] pe r i nr1 mnni t or was (nund Pi e t at 1 <> ri ci than the v orrui red 30 noconr1 not pn i nt purnuant to Technical Speci-ficatlon "l. 7. 3.

It is believed to have been moved in-advort<*nt1y ourIng a channel check s>er formed approx 5nate-Jy R hourn narlinr.

The 10 nascond rnverne and the 3 second r.c r a m n e t poi n t e, remained operable.

The inntrument wan corrected immediately.

Thiv= in not a m.rt.itive situation.

e Thin t-eJ er opy con f I rma a teiephons notification to Mr.

P.

It. McCabe of your office at 1415 hourn today.

A writtca. r e po r t-wi11 he nubmitted wit.hin 14 dayn purnuant to Tochnical F=poc i fi ca t J on

(>. S. 3. a. ( :1) ( b ).

Yourn very tr uly, i

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Mity : 1 t.m Mascon II. Vcth Planaoer Nuc3 car o pe r.st.i o n n e90 t

4 8002140 $Q9