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The NRC is shutdown due to the lapse in appropriations. Exempted activities to maintain critical health and safety activities and progress on critical activities, including activities outlined in Executive Order 14300, as described in the OMB Approved NRC Lapse Plan will continue.

Circulars - 1977 Index

Document Number Title Revision Publish Date Reviewed Date
CR-77-16 Emergency Diesel Generator Electrical Trip Lock-Out Features -- 12/09/1977 --
CR-77-15 Degradation of Fuel Oil Flow to the Emergency Diesel Generator -- 11/28/1977 --
CR-77-14 Separation of Contaminated Water Systems from Noncontaminated Plant Systems -- 11/22/1977 --
CR-77-13 Reactor Safety Signals Negated During Testing -- 09/22/1977 --
CR-77-12 Dropped Fuel Assemblies at BWR Facilities -- 09/15/1977 --
CR-77-11 Leakage of Containment Isolation Valves with Resilient Seats -- 09/02/1977 --
CR-77-10 Vacuum Conditions Resulting in Damage to Liquid Process Tanks -- 07/15/1977 --
CR-77-09 Improper Fuse Coordination in BWR Standby Liquid Control System Control Circuits -- 05/25/1977 --
CR-77-08 Failure of Feedwater Sample Probe -- 04/13/1977 --
CR-77-07 Short Period During Reactor Startup -- 04/12/1977 --
CR-77-06 Effects of Hydraulic Fluid on Electrical Cables -- 04/01/1977 --
CR-77-05 Fluid Entrapment in Valve Bonnets -- 03/24/1977 --
CR-77-04 Inadequate Lock Assemblies -- 03/17/1977 --
CR-77-03 Fire Inside a Motor Control Center -- 02/28/1977 --
CR-77-02a Potential Heavy Spring Flooding (CP) -- 02/18/1977 --
CR-77-02 Potential Heavy Spring Flooding (OL) -- 02/15/1977 --
CR-77-01 Malfunctions of Limitorque Valve Operators -- 01/04/1977 --

Page Last Reviewed/Updated Tuesday, March 09, 2021

Page Last Reviewed/Updated Tuesday, March 09, 2021