05000315/LER-1979-013-03, /03L-0 on 790303:auxiliary Feed Valve FMO-212 Would Not Shut from Control Room.Caused by Broken Wire in Valves Motor Operator.Breakage Is a Result of Vibration & Use of Solid Conductor Wire.Wire Replaced

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/03L-0 on 790303:auxiliary Feed Valve FMO-212 Would Not Shut from Control Room.Caused by Broken Wire in Valves Motor Operator.Breakage Is a Result of Vibration & Use of Solid Conductor Wire.Wire Replaced
ML17317B033
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 03/20/1979
From: Michael Brown
INDIANA MICHIGAN POWER CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B029 List:
References
LER-79-013-03L-01, LER-79-13-3L-1, NUDOCS 7903290038
Download: ML17317B033 (2)
v • d • e


LER-1979-013, /03L-0 on 790303:auxiliary Feed Valve FMO-212 Would Not Shut from Control Room.Caused by Broken Wire in Valves Motor Operator.Breakage Is a Result of Vibration & Use of Solid Conductor Wire.Wire Replaced
Event date:
Report date:
3151979013R03 - NRC Website
v • d • e

text

U. S. NUCLEAR REGULATORY COMMISSION E ALLREQUIRED INFORMATION)

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1 1 Qs~Qg 25 26 LICENSE TYPE 30 57 CAT 58 30379QB OB EVENT DATE 74 75 REPORT DATE 80

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LICENSEE CODE 14 15 LICENSE NUMBER CON'T SOURCE LiJQB 0

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8 60 61 DOCKET NUMBER 68 69 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES QIO DURING THIS STARTUPp AUX. FEED VALVE FMO-212 WOULD NOT SHUT FROM CONTROL

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ROOM.

THIS CONSTITUED AN INOPERABLE AUX. FEED FLOW PATH PER TECH.

SPEC.

3.7.1.2 A BROKEN WIRE WAS FOUND IN THE VALVE'S MOTOR OPERATOR.

REACTOR

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~O7 POWER WAS HELD LESS THAN 10 PERCENT FOR TWO HOURS DURING REPAIRS.

PUBLIC HEALTH AND SAFETY WERE NOT JEOPARDIZED.

SIMILAR EVENTS

RO 78-018/03-L-0

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SYSTEM

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QO 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDP PRIME COMP.

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

THE BROKEN WIRE WAS REPLACED.

CAUSE OF BREAKAGE APPEARS TO BE A COMBINATION OF VIBRATION AND THE USE OF SOLID CONDUCTOR WIRE.

DESIGN CHANGE 12-236' WILL REPLACE SOLID CONDUCTOR WIRE WITH STRANDED WIRE IN AUX. FEED MOTOR OPERATED VALVES.

A PROGRAM OF QUARTERLY INSPECTION OF AFFECTED WIRES WILL BE FOLLOWED PENDING INSTALLATION OF THE DESIGN CHANGE.

N/A 44 7

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FACILITY

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% POWER

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OTHER STATUS ~

DISCOVERY DISCOVERY DESCRIPTION Q32 C

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~AQss OPERATOR OBSERVATION 8

9 10 12 13 44 45 46 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ I OCATION OF RELEASE Q Z

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10 45 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39 s//IIsss gs~scs/sz/osQs Cj g 3 g gj @12+ g 80 80 80 80 7

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9 11 12 LOSS OF OR DAMAGETO FACILITY 43 TYPE

DESCRIPTION

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9 10 P U8 L IC ITY ISSUED DESCRIPTION~

9 10 N/A N/A NRC USE ONI Y 80 80 NAME OF PREPARER M. S, BROWN 68 69 80 o PHONE.

616-465-5901 EXT. 398 o.

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