05000368/LER-1979-083-03, /03L-0:on 790926,during Mode 2 Operation,Rod 46 Dropped Four Times to Lower Electrical Limit.Cause Not Stated.Voltage to CEDM Gripper Coils Was Increased & Rod Exercised Successfully.Control Element Assembly Realigned

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/03L-0:on 790926,during Mode 2 Operation,Rod 46 Dropped Four Times to Lower Electrical Limit.Cause Not Stated.Voltage to CEDM Gripper Coils Was Increased & Rod Exercised Successfully.Control Element Assembly Realigned
ML19254E299
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 10/25/1979
From: Pendergraft R
ARKANSAS POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19254E288 List:
References
LER-79-083-03L, LER-79-83-3L, NUDOCS 7910310428
Download: ML19254E299 (1)
v • d • e


LER-1979-083, /03L-0:on 790926,during Mode 2 Operation,Rod 46 Dropped Four Times to Lower Electrical Limit.Cause Not Stated.Voltage to CEDM Gripper Coils Was Increased & Rod Exercised Successfully.Control Element Assembly Realigned
Event date:
Report date:
3681979083R03 - NRC Website
v • d • e

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'.s REPORT DATE 8t 3 EVENT DESCRIPTION AND PROB A8LE CONSECUENCES toi2l lDuring mode 2 operation, Rod #4 dropped 4 times to the lower electrical,

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With CEA #46 misaligned by more than 19 inches from the group i

iaverage position, operation in mode 2 continued per T.S. Action Statement i o

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IInvestication did not reveal cause for rod drops.

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The CEA was realigned within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per Action Statement 3.1.3.1(c).

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