05000315/LER-1979-046-03, /03L-0:on 790905,during Full Length Control Rod Operability Test,Urgent Failure Alarm from Power Cabinet 2AC Was Received on Rod Control.Cause Could Not Be Found.Power Supply Reset & Operability Test Satisfactorily Completed

/03L-0:on 790905,during Full Length Control Rod Operability Test,Urgent Failure Alarm from Power Cabinet 2AC Was Received on Rod Control.Cause Could Not Be Found.Power Supply Reset & Operability Test Satisfactorily Completed

ML17326A278
Person / Time
Site:	Cook
Issue date:	10/05/1979
From:	Rischling J INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17318A326	List: 05000315/LER-1979-046, Forwards LER 79-046/03L-0 05000315/LER-1979-046-03, /03L-0:on 790905,during Full Length Control Rod Operability Test,Urgent Failure Alarm from Power Cabinet 2AC Was Received on Rod Control.Cause Could Not Be Found.Power Supply Reset & Operability Test Satisfactorily Completed
References
LER-79-046-03L, LER-79-46-3L, NUDOCS 7910110317
Download: ML17326A278 (2)

LER-1979-046, /03L-0:on 790905,during Full Length Control Rod Operability Test,Urgent Failure Alarm from Power Cabinet 2AC Was Received on Rod Control.Cause Could Not Be Found.Power Supply Reset & Operability Test Satisfactorily Completed

Event date:
Report date:
3151979046R03 - NRC Website

text

{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

QB NRC FORM ~466 U. S. NUCLEAR REGULATORY COMMISSION (7-771)

[CENSE E EVENT REPORT CONTROL BLOCK:

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M I D

C C

1 QE 0

0 0

0 0

0, 0

0 0 QE 4

1 1

1 1 QE~

QE 7

8 9

LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T 0

1 REP0RT ~L~B 0

5 0

0 0

3 1

5 Q7 0

9 0

5 7

9 Q SOURCE 7

8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 WHXLE CONDUCTXNG A" FULL LENGTH CONTROL ROD OPERABILITY TEST 9 ANl URGENT FAXLURE ALARM FROM POWER CABINET 2 AC WAS RECE IVED ON ROD CONTROL ~

ONLY SHUTDOWN BANK-A WOULD MOVE ~

THE OTHER CONTROL BANKS:

COULD NOT BE MOVED EVEN IN MANUAL CONTROL ~

THIS EVENT IS NON-CON-o 6

SERVATIVE IN RESPECT TO T.S. 3.1.3.1.

THE REQUIREMENTS OF ACTION ITEM b WERE MET AS THE CONTROL RODS WERE RETURNED TO OPERATION IN LES S THAN 6 HOURS ~

7 8

9 80 SYSTEM

CAUSE

CAUSE COMP VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~OB

~RB Qll

~X QTE

~X QTE Q74

~Z QTE

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8 9

10 11 12 13 18 19 20 E

SEQUENTIAL OCCURRENCE REPORT REVISION LEBiRO EVENT YEAR REPORT NO.

CODE TYPE NO.

Q17 REPQRT L779j +

~Q4 0

Q~

~Q3

+D Q

0 21 22 23 24, 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN

+

ATTACHMENT NPRDQ PRIME COMP, COMPONENT TAKEN ACTION ON PI.ANT, METHOD HgURS

+22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER QTEQTEQERQ3700+NQ33NQEENQEEZ999QEE 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 INVESTIGATXON FAILED TO REVEAL ANY EQUIPMENT FAILURE OR MALFUNCTION.

THE POWER SUPPLY WAS RESET AND THE FULL LENGTH CONTROL ROD OPERABILXTY TEST WAS SATISFACTORXLY COMPLETED.

NO OTHER PROBLEMS HAVE BEEN ENCOUNTERED SINCE THIS EVENT.

NO FURTHER ACTIONS ARE PLANNED AT 3

THIS TIME.

4 7

8 9

FACILITY STATUS 9IP POWER OTHER STATUS Q 6

E 26 1

0 0

29 NA 7

8 9

11 12, LOSS OF OR DAMAGETO FACILITY~43 TYPE

DESCRIPTION

Z Q42 7

8 9

10 PUBLICITY ISSUED DESCRIPTION~

~2O

~NQ44 7

8 9

10 CO Q LLLLQ ACTIVIT'Y CONTENT RELEASEO OF RELEASE AMOUNTOF ACTIVITYQ 6

~Z Q33

~ZQ34 NA 7

8 9

10 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39

~77 ~00 0

Q37 ~ZQ33 N7E 7

8 9

11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTIONQ41

~lE L0000~0~

IQEO NA METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32 LAJQ31 AUDIBLE AL+m 45 46 LOCATIONOF RELEASE Q 45 V)yogdzr 80 80 80 80 NAME OF PREPARER J. L. Rischling PHONE 80 68 69 616-465-5901 80 NRC USE ONLY 80 4

0