05000255/LER-1981-033-03, /03L-0:on 810818,during Power Ascension,Four Incore Alarms Received.Caused by Unusual Flux Shapes Due to Power Ascension & by Alarms Being Set at Limits More Conservative than Tech Specs

/03L-0:on 810818,during Power Ascension,Four Incore Alarms Received.Caused by Unusual Flux Shapes Due to Power Ascension & by Alarms Being Set at Limits More Conservative than Tech Specs

ML20010G072
Person / Time
Site:	Palisades
Issue date:	09/10/1981
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20010G069	List: 05000255/LER-1981-033, Forwards LER 81-033/03L-0 05000255/LER-1981-033-03, /03L-0:on 810818,during Power Ascension,Four Incore Alarms Received.Caused by Unusual Flux Shapes Due to Power Ascension & by Alarms Being Set at Limits More Conservative than Tech Specs
References
LER-81-033-03L, LER-81-33-3L, NUDOCS 8109150295
Download: ML20010G072 (1)

LER-1981-033, /03L-0:on 810818,during Power Ascension,Four Incore Alarms Received.Caused by Unusual Flux Shapes Due to Power Ascension & by Alarms Being Set at Limits More Conservative than Tech Specs

Event date:
Report date:
2551981033R03 - NRC Website

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6G 61 OOCKETNLvegR es 69 EVENT OATE 74 76 REPORT OATE 83 EVENT DESCRIPTION ANO PROBA8LE CONSEQUENCES h 10 ! 21 1 During power ascension e.t 91% power, four incore alarms were received. As I

m i required by T.S.3.11(b), power was reduced below 85%. Subsequent analysis iOi.i ! verified no violation of Technical Jpecification existed. Event reportable I iO,sii per T.S.6.9.2.b(2).

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i i gi by power ascension. Proposed TS change (submitted 7/21/81) will allow use i. I3i l of alarms based on bettar Flux Sbres.

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