05000316/LER-1979-030-03, /03L-0:on 790909,while at 81% Power,Delta Flux Indication Was Below Tech Spec Limit.Caused by Operator Error.Procedures Have Been Revised

/03L-0:on 790909,while at 81% Power,Delta Flux Indication Was Below Tech Spec Limit.Caused by Operator Error.Procedures Have Been Revised

ML17326A283
Person / Time
Site:	Cook
Issue date:	10/09/1979
From:	Murphy C INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17318A334	List: 05000316/LER-1979-030, Forwards LER 79-030/03L-0 05000316/LER-1979-030-03, /03L-0:on 790909,while at 81% Power,Delta Flux Indication Was Below Tech Spec Limit.Caused by Operator Error.Procedures Have Been Revised
References
LER-79-030-03L-01, LER-79-30-3L-1, NUDOCS 7910160507
Download: ML17326A283 (4)

LER-1979-030, /03L-0:on 790909,while at 81% Power,Delta Flux Indication Was Below Tech Spec Limit.Caused by Operator Error.Procedures Have Been Revised

Event date:
Report date:
3161979030R03 - NRC Website

text

U. S. NUCLEAR REGULATORY COMMISSION NT REPORT tPLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

NRC FORM 366 (7.77)

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60 61 DOCKET NUMBER 68 69 F VENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABL.E CONSEQUENCES Q10

~02, AFTER COMPLETION OF INCORE EXCORE CROSS CALI RAT

~03 POWER WAS BEING ESCALATED TO 100%.

ON REACHING"81% POWER THE DELTA FLUX INDICA-TION WAS OUT OF THE TARGET BAND FOR AN'.ESTIMATED 21-22 MINUTES.

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~06 TECHNICAL SPECIFICATION LIMIT OF 84%'BUT VIOLATES A MORE RESTRICTIVE ADMINISTRATIV LIMIT OF 81%

IMPOSED PENDING REVISION OF TECHNICAL P

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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LF RIRO EVENT YEAR REPORT NO.

CODE TYPE NO.

Q17 REPORT ~79

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~QQ 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDQ PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB.

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Q" 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o

THE OPERATOR WHILE PERFORMING THE P

AXIAL FLUX LIMITS DIFFERENCE AS SHOWN TIVE LIMITS IMPOSED PENDING REVISION OF TECHNICAL SPECIFI ATI N

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THE DELTA FLUX GOING SLIGHTLY OUT OF THE TARGET BAND BETWEEN 81-2.

P 80 DISCOVERY DESCRIPTION Q32 NUCLEAR SECTION 80 LOCATIONOF RELEASE Q 80 44 80 80 80 NRC USE ONLY 2

80' 465-5901 X-316 68 69 PHONE.

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MURPHY NAME OF PREPARER 4

CONTROL ROOM COPY OF THE TECH.

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FACILITY

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10 12 13 44 45 46 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY EZ L~JO L~JQ NA 7

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10 11 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q3

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10 PUBLICITY ISSUED

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ATTACHMENT TO LER 8 79-030/03L-0 PAGE 2 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS:

ADMINISTRATIVE LIMITS AND THE INCORE/EXCORE TEST PROCEDURE HAS BEEN CHANGED TO REQUIRE OPERATOR SIGNOFF THAT THE AXIAL FLUX DIFFERENCE IS WITHIN THE TARGET BAND PRIOR TO POWER ESCALATION.

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