United States Nuclear Regulatory Commission - Protecting People and the Environment

Bulletins: 1980 Index

File Name Date Description
BL-80-17s5 02/13/1981 Failure of Control Rods to Insert During a Scram at a BWR
BL-80-25 12/19/1980 Operating Problems with Target Rock Safety-Relief Valves at BWRs
BL-80-17s4 12/18/1980 Failure of Control Rods to Insert During a Scram at a BWR
BL-80-24 11/21/1980 Prevention of Damage Due to Water Leakage Inside Containment (October 17, 1980 Indian Point 2 Event)
BL-80-23 11/14/1980 Failures of Solenoid Valves Manufactured by Valcor Engineering Corporation
BL-80-21 11/06/1980 Valve Yokes Supplied by Malcolm Foundry Company, Inc.
BL-80-22 09/11/1980 Automation Industries, Model 200-520-008 Sealed-Source Connectors
BL-80-17s3 08/22/1980 Failures Revealed by Testing Subsequent to Failure of Control Rods to Insert During a Scram at a BWR
BL-80-19r1 08/13/1980 Failures of Mercury-Wetted Matrix Relays in Reactor Protective Systems of...Plants Designed by Combustion Engineering
BL-80-20 07/31/1980 Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches
BL-80-19 07/31/1980 Failures of Mercury-Wetted Matrix Relays in Reactor Protective Systems of...Plants Designed by Combustion Engineering
BL-80-18 07/24/1980 Maintenance of Adequate Minimum Flow Thru Centrifugal Charging Pumps Following Secondary Side High Energy Line Rupture
BL-80-17s2 07/22/1980 Failures Revealed by Testing Subsequent to Failure of Control Rods to Insert During a Scram at a BWR
BL-80-17s1 07/18/1980 Failure of 76 of 185 Control Rods to Fully Insert During a Scram at a BWR
BL-80-17 07/03/1980 Failure of 76 of 185 Control Rods to Fully Insert During a Scram at a BWR
BL-80-16 06/27/1980 Potential Misapplication of Rosemount...Models 1151 and 1152 Pressure Transmitters with Either "A" or "D" Output Codes
BL-80-15 06/18/1980 Possible Loss of Emergency Notification System (ENS) with Loss of Offsite Power
BL-80-14 06/12/1980 Degradation of Scram Discharge Volume Capability
BL-80-13 05/12/1980 Cracking in Core Spray Spargers
BL-80-12 05/09/1980 Decay Heat Removal System Operability
BL-80-11 05/08/1980 Masonry Wall Design –
BL-80-10 05/06/1980 Contamination of Nonradioactive System and Resulting Potential for Unmonitored, Uncontrolled Release to Environment
BL-80-07s1 05/13/1980 BWR Jet Pump Assembly Failure –
BL-80-09 04/17/1980 Hydramotor Actuator Deficiencies
BL-80-08 04/07/1980 Examination of Containment Liner Penetration Welds
BL-80-07 04/04/1980 BWR Jet Pump Assembly Failure –
BL-80-06 03/13/1980 Engineered Safety Feature (ESF) Reset Controls
BL-80-05 03/10/1980 Vacuum Condition Resulting in Damage to Chemical Volume Control System (CVCS) Holdup Tanks
BL-80-04 02/08/1980 Analysis of a PWR Main Steam Line Break with Continued Feedwater Addition
BL-80-03 02/06/1980 Loss of Charcoal from Standard Type II, 2 Inch, Tray Adsorber Cells
BL-80-02 01/21/1980 Inadequate Quality Assurance for Nuclear Supplied Equipment
BL-80-01 01/11/1980 Operability of ADS Valve Pneumatic Supply
Page Last Reviewed/Updated Tuesday, July 23, 2013