ML19274F812

Forwards LERs 79-048/03L-0,79-049/03L-0,79-050/03L-0, 79-051/03L-0 & 79-052/03L-0

Date released: 10/15/2019	Download: ML19274F812

LER 79-052/03L-0 on 790708:core Protection Calculator B Failed Causing Low DNBR & High Linear Power Density Trips in Plant Protection Sys B.Caused by Lost Bit in High Core Memory Due to Failed Air Conditioner in Computer Room

ML19274F821
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/31/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19274F821 (1)

LER 79-051/03L-0 on 790706:emergency Feedwater Flow Control Valves from Electric Driven Pump to Steam Generator a Failed to Close from Control Room Demand Signal.Cause Not Stated.Valve Tested & Motor Replace

ML19274F820
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/31/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19274F820 (1)

LER 79-050/03L-0 on 790703:control Room Emergency Air Conditioner 2VE1-A Failed to Start from Control Room Panel 2c33 During Mode 1.Caused by High Pressure Switch Tripping Due to Low Water in Condenser

ML19274F819
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/31/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19274F819 (1)

LER 79-049/03L-0 on 790703:hydraulic Snubber Visual Insp Surveillance Not Performed on Schedule.Caused by Erroneous Assumption by Plant Personnel That Surveillance Performed During Reactor Coolant Pump Motor Maint

ML19274F817
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/31/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19274F817 (1)

LER 79-048/03L-0 on 790703:startup Channel Excore Nuclear Log Count Ratemeter on Remote Shutdown Indicated Incorrectly During Mode 1 Operation.Cause Not Stated. Feedback Wiper Arm Cleaned

ML19274F815
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/31/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19274F815 (1)

Forwards LERs 79-048/03L-0,79-049/03L-0,79-050/03L-0, 79-051/03L-0 & 79-052/03L-0

ML19274F811
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/31/1979
From:	Trimble D ARKANSAS POWER & LIGHT CO.
To:	SEYFRIT K V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19274F811 (1)