05000315/LER-1979-008-03, /03L-0 on 790207:containment Atmospheric Air Particulate & Gaseous Radiation Monitoring Sys Pump Was Continuously Tripping.Caused by Misalignment of Pump Bypass Flow Adjustments Due to Normal Pump Wear.Flow Rate Adjusted

/03L-0 on 790207:containment Atmospheric Air Particulate & Gaseous Radiation Monitoring Sys Pump Was Continuously Tripping.Caused by Misalignment of Pump Bypass Flow Adjustments Due to Normal Pump Wear.Flow Rate Adjusted

ML17317B006
Person / Time
Site:	Cook
Issue date:	03/13/1979
From:	Bellman T INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B004	List: 05000315/LER-1979-007-03, /03L-0 on 790218:suction Valve of West Centrifugal Charging Pump Found Closed.Caused by Mistaken Closing Following Surveillance Testing.Incident Is Being Reviewed 05000315/LER-1979-008-03, /03L-0 on 790207:containment Atmospheric Air Particulate & Gaseous Radiation Monitoring Sys Pump Was Continuously Tripping.Caused by Misalignment of Pump Bypass Flow Adjustments Due to Normal Pump Wear.Flow Rate Adjusted 05000315/LER-1979-009-03, /03L-0 on 790223:in Mode 1 Both Emergency Diesel Generators Were Inoperable on Separate Occasions.Caused by AB Diesel Generator Running in Parallel & Other Emergency Generator Out for Maint.Operating Procedures Revised ML17317B003
References
LER-79-008-03L, LER-79-8-3L, NUDOCS 7903190300
Download: ML17317B006 (2)

LER-1979-008, /03L-0 on 790207:containment Atmospheric Air Particulate & Gaseous Radiation Monitoring Sys Pump Was Continuously Tripping.Caused by Misalignment of Pump Bypass Flow Adjustments Due to Normal Pump Wear.Flow Rate Adjusted

Event date:
Report date:
3151979008R03 - NRC Website

text

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~O3 PUMP WAS DISCOVERED'TO BE CONTINUALLY TRIPPING DUE TO A HIGH FLOW CONDITION.

THE ACTION STATEMENT OF T.S.

TABLE 3.3-3 ITEM 3c2 WAS OBSERVED WHILE ADJUSTMENTS WERE NRC FORM 366

. S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT P

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{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

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8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES ~10 THE CONTAINMENT ATMOSPHERE AIR PARTfCtjLATE AND GASEOUS RADIATION MONITORING SYSTEM

~O6 PERFORMED.

SIMILAR EVENTS

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43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS A27 THE CAUSE WAS TRACED TO THE PUMP BVPASS FLOW ADJUSTMENTS WHICH HAD BECOME MISALIGNED.

THE FLOW RATE WAS ADJUSTED TO THE PROPER VALUE AND CORRECT OPERATION WAS VERIFIED.

THE CAUSE OF THE EVENT HAS BEEN ATTRIBUTED TO NORMAL PUMP WEAR.

NO FURTHER ACTION 3

IS CURRENTLY PLANNED.

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FACILITY STATUS

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