ML19254E288

Forwards LERs 79-075/03X-1,79-083/03L-0,79-084/03L-0 & 79-085/03L-0

Date released: 09/25/2019	Download: ML19254E288

LER 79-085/03L-0:on 790925,during Mode 2 Operation,Refueling Water Tank Boron Concentration Was 1,705 Ppmb.Caused by Calculation Based on Boron Concentration Taken Prior to Sufficient Mixing.Operating Procedures Revised

ML19254E305
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/25/1979
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19254E305 (1)

LER 79-084/03L-0:on 790927,during Mode 2 Operation,Control Element Assembly 46 Dropped to Lower Electrical Limit.Cause Not Stated.Gripper Voltage Was Increased to Facilitate Rod Withdrawal.Rod Was Realigned to Group Average

ML19254E301
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/25/1979
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19254E301 (1)

LER 79-083/03L-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

ML19254E299
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/25/1979
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19254E299 (1)

LER 79-075/03X-1:on 790822,during Mode 1 Operation,Data Link from Control Element Assembly Cluster to B Core Protection Computer Dropped,Resulting in B Channel Tripping.Caused by Failed Optical Amplifier.Data Link Was Repaired

ML19254E296
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/25/1979
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19254E296 (1)

Forwards LERs 79-075/03X-1,79-083/03L-0,79-084/03L-0 & 79-085/03L-0

ML19254E287
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/25/1979
From:	Trimble D ARKANSAS POWER & LIGHT CO.
To:	SEYFRIT K V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19254E287 (1)