05000316/LER-1979-052-03, /03L-0:on 791218,w/reactor in Mode 5,source Range Indication Was Inoperable for 23 Minutes.Caused by Maint Error While Working on Energized Equipment.Workers Reprimanded & Addl Training Held

/03L-0:on 791218,w/reactor in Mode 5,source Range Indication Was Inoperable for 23 Minutes.Caused by Maint Error While Working on Energized Equipment.Workers Reprimanded & Addl Training Held

ML19257C026
Person / Time
Site:	Cook
Issue date:	01/16/1980
From:	Rischling J INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19257B999	List: 05000316/LER-1979-051-03, /03L-0:on 791217,w/reactor in Mode 5,containment Spray Pump Discharge Valve Failed to Open.Caused by Limitorque Switch Binding Operator Mechanism.Torque Switch & Drive Motor Replaced 05000316/LER-1979-052-03, /03L-0:on 791218,w/reactor in Mode 5,source Range Indication Was Inoperable for 23 Minutes.Caused by Maint Error While Working on Energized Equipment.Workers Reprimanded & Addl Training Held ML19257B998
References
LER-79-052-03L, LER-79-52-3L, NUDOCS 8001220639
Download: ML19257C026 (2)

LER-1979-052, /03L-0:on 791218,w/reactor in Mode 5,source Range Indication Was Inoperable for 23 Minutes.Caused by Maint Error While Working on Energized Equipment.Workers Reprimanded & Addl Training Held

Event date:
Report date:
3161979052R03 - NRC Website

text

NRC FORMJ66 U.S. NUCLEAR REudLATORY COMMISSION (7 77)

LICENSEE EVENT REPORT CONTROL DLOCK:

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6 60 61 DO.KET NUMBE R 68 6'J EVENT DATE 74 76 REPORT DATE B0 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES 10 o

2 i WHILE IN MODE 5, SOURCu RANGE INDI nTION WAS INOPERABLE FOR A PERIOD OF 23 MINUTES i THIS IS NON-CONSERVATIVE IN RESPECT TO T.S. TABLE 3.3-1 IiEM 6.b.

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SUPPLEMENT TO LER #79-052/03L-0 SUPPLEMENT TO CAUSE DESCRIPTION DISCONNECTED, NOT REALIZING THAT N-31 WAS THE IN-SERVICE SOURCE P.ANGE DETECTOR.

FOLLOWING INSTALLATION OF THE HEAT SHRINK TUBING, THE DETECTOR WAS RETURNED TO SERVICE.

THE TECHNICIANS WERE VERBALLY REPRIMANDED BY THEIR IMMEDIATE SUPERVISOR WHO ALSO DISCUSSED THE CONSEQUENCES OF THEIR ACTIONS. ADDITIONAL TRAINING WAS HELD WITH ALL MAINTENANCE REPAIR TECHNICIANS DESCRIBING THIS EVENT AND EMPHASIZING THE IMPORTANCE OF FOLLOWING APPROVED PROCEDURES AND THE SAFETY HAZARDS OF WORKING ON ENERGIZED EQUIPMENT.

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