ML19263D333

Forwards LERs 78-013/01T-1,78-015/01T-1,79-019/03L-0 & 79-020/01T-0

Date released: 10/04/2019	Download: ML19263D333

LER 79-020/01T-0 on 781107:during Controlled Steam Lift, Discovered Warn Ring Lockpin Had Broken on Four Occasions. Caused by Lockpin Fragility.Lockpins Replaced W/Ones of Stronger Design

ML19263D352
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/22/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19263D352 (5)

LER 79-019/03L-0 on 781031:w/both Reactor Coolant Loops & Associated Steam Generators in Operation,One or More Main Steam Line Safety Valves Were Inoperable.Caused by Safety Valve Gagging.W/Chronological Log Describing Incidents

ML19263D346
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/22/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19263D346 (2)

LER 78-015/01T-1 on 781107:following Discovery of Improper Speed Switch in a Emergency Diesel Generator,Instrument Technician Installed Replacement Switch W/O Approved Job Order.Caused by Personnel Error

ML19263D343
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/22/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19263D343 (4)

LER 78-013/01T-1 on 781107:emergency Diesel Generator Vendor,Colt Industries,Notified Util of Speed Switch Design Problem That Could Potentially Fail.Switch Replaced W/Another Part from Different Vendor

ML19263D338
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/22/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19263D338 (4)

Forwards LERs 78-013/01T-1,78-015/01T-1,79-019/03L-0 & 79-020/01T-0

ML19263D332
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/22/1979
From:	Trimble D ARKANSAS POWER & LIGHT CO.
To:	SEYFRIT K V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
Download: ML19263D332 (2)