ML19256G178

LER 79-101/03L-0:on 791120,during Normal Reactor Startup, Intermediate Range Monitor D Did Not Indicate Proper Overlap on Range 7.Caused by Preamplifier Maladjustment.Preamplifier Adjusted Per Maint Instruction 3-15J

ML19256G178
Person / Time
Site:	Brunswick
Issue date:	12/14/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256G169	List: ML19256G168 ML19256G178
References
LER-79-101-03L-0, LER-79-101-3L, NUDOCS 7912270561
Download: ML19256G178 (1)

Text

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? 8 60 61 DOCK ET NUMBER 6d 69 EVENT DATE 74 75 RE ORT QATE EVENT DESCRIPTION AND PROBA8LE CONSEQUENCES h During a normal reactor startuo, IR5 "D" did not indicate proper overlap on o  : [  !

r, , , , j Range 7. "3" channel LPS was manually tripped and the startup was terminated. l

[ TIT] l IRS "B" was already bypcned due to an amplifier problem. l IiIT] 1 1 0 6 l l 317 l I .

,is i i Technical Specifications 3.3.1, 6.9.1.9a l

7 6 3 SO SYSTEY CAUSE CAusE COVP. VALVE CODE CODE SUSCODE COMPONENT CODE SU8 CODE SUSCOCE 7

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i n The preamplifier was found to be out of adjustment. The preamplifier was adjusted I i ,, l per !!aintenance I:.struct10n 3-15J and lef t in satisfactory condition. A cali- I

,, i2i j bration frequency of once per cycle is being established on the IF21 preamplifiers. I g This is considered an isolated event, and no further action is required.

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