05000333/LER-1980-043-03, /03L-0:on 800428,during Shutdown Operations, Surveillance to Satisfy Safety Requirements of Tech Spec 4.1-1 Revealed Average Power Range Monitor B Scram & Rod Block Setpoint Above Limit.Caused by Instrument Drift

/03L-0:on 800428,during Shutdown Operations, Surveillance to Satisfy Safety Requirements of Tech Spec 4.1-1 Revealed Average Power Range Monitor B Scram & Rod Block Setpoint Above Limit.Caused by Instrument Drift

ML19323G428
Person / Time
Site:	FitzPatrick
Issue date:	05/27/1980
From:	POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19323G425	List: 05000333/LER-1980-043, Forwards LER 80-043/03L-0 05000333/LER-1980-043-03, /03L-0:on 800428,during Shutdown Operations, Surveillance to Satisfy Safety Requirements of Tech Spec 4.1-1 Revealed Average Power Range Monitor B Scram & Rod Block Setpoint Above Limit.Caused by Instrument Drift
References
LER-80-043-03L, LER-80-43-3L, NUDOCS 8006020417
Download: ML19323G428 (1)

LER-1980-043, /03L-0:on 800428,during Shutdown Operations, Surveillance to Satisfy Safety Requirements of Tech Spec 4.1-1 Revealed Average Power Range Monitor B Scram & Rod Block Setpoint Above Limit.Caused by Instrument Drift

Event date:
Report date:
3331980043R03 - NRC Website

text

U. S. NUCt. EAR RECULATORY COMAtiSSICS NRC FOEM 356 f7 77)

LICENSEE EVENT REPORT CONTMOL BLCCK: I l

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& 9 UCENSEE CCCE le 15 UCENSE NUMSER 15 26 UCENSE TYPE 40 57 CAT 54 lL @l015 l0 lo lo 131313 @l o f 4l 21818l o l@l ol Sl 21718 l 0 CON r loi'l 7

8 60 61 QOCK ET NUMO ER 68 SS EV ENT CATE 74 75 REPCRT OATE 80 seuRCE EVENT DESCRIPTION ANO PROBABLE CONSECUENCES h lo!:1 l Durinc shutdown operations surveillance to satisfy the recuirements of TS Table i

DiTTI 14.1-1 revealed APRM 8 scram and rod block setooint 1% above the limit. 'APRM F in the I l o t 4 l Isame safety system was inocerable at the same time (See LER-80-036).

RPS' Channel 8 j

l o t s !' twas placed in trloped condition as reacired by TS Table 3.1-1 until the ser coint l

.t Io is I terror was corrected.

The event did not reoresent a sienificant hazard to the 1

I I o I 7 I loublic heal th and safety.

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EV ENT Y E AR REPCRT NO.

CCCE TYPE NC.

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42 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS r i I o I Limorooer setooint is attributed to instrument drift.

Calibration of the trip l'

I litilIsetpoints restored APRM S to operable status within three (3) hours of discovery.

J l No additional corrective action is recuired.

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I NUMSER CEsCRIPTION l

lihi1010lol@l NA 33 7

8 9 11 12 Loss OP QR DAMAGE TO PACluTY TYPE 0,ESCRipT10N l

l'191lZi@l NA to 7

8 9 10 NRC USE CNLY Pusu NA l

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