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Columbia Community
August 29, 2022 - On August 23, 2022, at approx. 2:30 p.m., a low voltage (110 Volts) electrical cable short caused a circuit breaker to trip, causing a loss of power to the Criticality Accident Alarm System (CAAS) Stations 18 & 19 at the Columbia Fuel Fabrication Facility (CFFF). Stations 18 and 19 are two of the criticality monitoring detectors that are part of the overall CFFF criticality monitoring system. This system is designed to provide an audible and visual indication of high radiation levels that could result from a criticality event. Per system design requirements, upon the loss of power to these detectors, a signal was received at the manned guard station providing both visual indication and an audible alarm that Stations 18 and 19 were disabled.