Pages that link to "NRC Form 398A"
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The following pages link to NRC Form 398A:
Displayed 9 items.
- 05000327/LER-1986-055, :on 861201,during Cold Shutdown,Auxiliary Bldg Isolation (Abi) Occurred W/O Associated Relays Sealed In. Cause Probably Due to Spike on Radiation Monitor 0-RM-90-102.Change Notice Issued (← links)
- 05000331/LER-1993-012, :on 931129,primary Containment Isolation Sys Half Group 3 Isolation Occurred Due to Degraded Relay Contact in Logic Sys.Automatic Actions Confirmed,Isolation & Half Scram Reset & SBGT Secured (← links)
- 05000280/LER-1988-038, :on 880928,three Recirculation Spray HXs Filled W/Svc Water Discovered.Caused by Leakage Past Normally Closed Recirculation Spray HX Inlet Isolation Valves.Samples Taken (← links)
- 05000255/LER-1993-005-01, :on 930720,both EDGs Started After Receiving Undervoltage Signal Due to de-energization of Electrical Bus 1C.Caused by Inadequate Design Info.Sys Engineers Will Be Trained on Event (← links)
- 05000255/LER-1992-039, :on 921030,reactor Automatically Tripped Due to Loss of Load Resulting from Unstable Voltage to Turbine Control Sys Computers.Caused by Failure to Maintain Power Voltage to Ups.New Transformers Installed (← links)
- 05000250/LER-1987-029, :on 871015,determined That Waste Gas Sys Operated in Configuration Not Described in Fsar.Caused by Inadequate Procedural Rev.Procedure 3/4-OP-47.1 Revised to Ensure That Valve 4627 Closed (← links)
- 05000528/LER-1988-020, :on 881210,control Element Assemblies Slipped. Caused by Apparent Ground on Lower Lift Coil & Design Defect in Control Element Drive Mechanism Control Sys.Part 21 Related (← links)
- 05000529/LER-1987-019, :on 871122,reactor Trip Occurred Due to Core Axial Shape Index Out of Bounds.Caused by Deficient Procedure & Faulty Contact.Procedural Enhancements Initiated & Faulty Contact Replaced (← links)
- 05000389/LER-1997-002, :on 981204,containment Sump Debris Screen Was Not IAW Design.Caused by Inadequate C/As for Sump Screen Anamolies.All Identified Sump Screen Deficiencies Were Dispositioned &/Or Repaired.With (← links)