United States Nuclear Regulatory Commission - Protecting People and the Environment

Bulletins: 1980 Index

Document Number Title Revision Publish Date Reviewed Date
BL-80-25 Operating Problems with Target Rock Safety-Relief Valves at BWRs -- 12/19/1980 --
BL-80-24 Prevention of Damage Due to Water Leakage Inside Containment (October 17, 1980 Indian Point 2 Event) -- 11/21/1980 --
BL-80-23 Failures of Solenoid Valves Manufactured by Valcor Engineering Corporation -- 11/14/1980 --
BL-80-22 Automation Industries, Model 200-520-008 Sealed-Source Connectors -- 09/11/1980 --
BL-80-21 Valve Yokes Supplied by Malcolm Foundry Company, Inc. -- 11/06/1980 --
BL-80-20 Failures of Westinghouse Type W-2 Spring Return to Neutral Control Switches -- 07/31/1980 --
BL-80-19 Failures of Mercury-Wetted Matrix Relays in Reactor Protective Systems of...Plants Designed by Combustion Engineering 1 08/13/1980 --
-- 07/31/1980 --
BL-80-18 Maintenance of Adequate Minimum Flow Thru Centrifugal Charging Pumps Following Secondary Side High Energy Line Rupture -- 07/24/1980 --
BL-80-17 Failure of 76 of 185 Control Rods to Fully Insert During a Scram at a BWR S5 02/13/1981 --
S4 12/18/1980 --
S3 08/22/1980 --
S2 07/22/1980 --
S1 07/18/1980 --
-- 07/03/1980 --
BL-80-16 Potential Misapplication of Rosemount...Models 1151 and 1152 Pressure Transmitters with Either "A" or "D" Output Codes -- 06/27/1980 --
BL-80-15 Possible Loss of Emergency Notification System (ENS) with Loss of Offsite Power -- 06/18/1980 --
BL-80-14 Degradation of Scram Discharge Volume Capability -- 06/12/1980 --
BL-80-13 Cracking in Core Spray Spargers -- 05/12/1980 --
BL-80-12 Decay Heat Removal System Operability -- 05/09/1980 --
BL-80-11 Masonry Wall Design – -- 05/08/1980 --
BL-80-10 Contamination of Nonradioactive System and Resulting Potential for Unmonitored, Uncontrolled Release to Environment -- 05/06/1980 --
BL-80-09 Hydramotor Actuator Deficiencies -- 04/17/1980 --
BL-80-08 Examination of Containment Liner Penetration Welds -- 04/07/1980 --
BL-80-07 BWR Jet Pump Assembly Failure – S1 05/13/1980 --
-- 04/04/1980 --
BL-80-06 Engineered Safety Feature (ESF) Reset Controls -- 03/13/1980 --
BL-80-05 Vacuum Condition Resulting in Damage to Chemical Volume Control System (CVCS) Holdup Tanks -- 03/10/1980 --
BL-80-04 Analysis of a PWR Main Steam Line Break with Continued Feedwater Addition -- 02/08/1980 --
BL-80-03 Loss of Charcoal from Standard Type II, 2 Inch, Tray Absorber Cells -- 02/06/1980 --
BL-80-02 Inadequate Quality Assurance for Nuclear Supplied Equipment -- 01/21/1980 --
BL-80-01 Operability of ADS Valve Pneumatic Supply -- 01/11/1980 --
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