ML17326A283

LER 79-030/03L-0:on 790909,while at 81% Power,Delta Flux Indication Was Below Tech Spec Limit.Caused by Operator Error.Procedures Have Been Revised

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: ML17318A333 ML17326A283
References
LER-79-030-03L-01, LER-79-30-3L-1, NUDOCS 7910160507
Download: ML17326A283 (4)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7.77)

P ~ ENSEE EVE NT REPORT CONTROL BLOCK: QI tPLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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7 8 9 LICENSEE CODE I

14 Q2OOOOOO 15

,6 LICENSE NUMBER 25 Q3 26 LICENSE TYPE 30 Q~O 57 CAT 58 CON'T 0 1 MLQB O 5 O O O 3 1 6 Q7 O 9 O 9 7 9 QB 1 0 0 9 09 soURGE 74 75 REPORT DATE 80 8 60 61 DOCKET NUMBER 68 69 F VENT 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. TH

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

~06 LIMIT OF 81% IMPOSED PENDING REVISION OF TECHNICAL P F

~07

~OB 80 7 8 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~09 ~XX Q11 D Q12 ~1Q13 13 Z Z Z Z Z Z 18 QE ~ZQEE 19

~Z 20 QER 7 8 9 10 11 12 SEQUENTIAL OCCURRENCE REPORT REVISION Q17 LF RIRO REPORT EVENT YEAR

~79 ~ REPORT NO.

~QQ CODE TYPE NO.

21 22 23 24 26 27 28 29 30 31 32 ATTACHMENT NPRDQ PRIME COMP. COMPONENT Q26>>>>

ACTION FUTURE EFFECT SHUTDOWN TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~GQ)B 33

~Z Q19, ~Z 34 35 Q20 MZ 36 Q21 37 40

~Y 41 Q23 I~I 42 Q24 L~ J 43 44 47 Q"

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 T 3 THE DELTA FLUX GOING SLIGHTLY OUT OF THE TARGET BAND BETWEEN 81- 2. P 4 CONTROL ROOM COPY OF THE TECH. SPEC. GRAPH HAS BEEN UPDAT 80 7 8 9 FACILITY STATUS ~

~08 DIP POWER OTHER STATUS ~

~30 METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 7 8 LUO23 9 10 I

12 Q 13 NA 44

~AQ31 45 46 NUCLEAR SECTION 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Q EZ 7 8 L~JO 9

L~JQ 10 11 NA 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q3 80 8 9 11 12

~IN 80 7

LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION Q43 Z Q4. NA 8 9 10 80 7

PUBLICITY NRC USE ONLY ISSUED DESCRIPTION KDO MNQ4" NA 68 69 80' 2

7 8 9 10 C. E. MURPHY PHONE. 61 6 465-5901 X-316 NAME OF PREPARER

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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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