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Latent failures span the first three domains of failure in Reason's model. [ 9 ] In the early days of the Swiss cheese model, late 1980 to about 1992, attempts were made to combine two theories: James Reason's multi-layer defence model and Willem Albert Wagenaar's tripod theory of accident causation .
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A reliability engineer has the task of assessing the probability of a plant operator failing to carry out the task of isolating a plant bypass route as required by procedure.
The Human Factors Analysis and Classification System (HFACS) identifies the human causes of an accident and offers tools for analysis as a way to plan preventive training. [1]
Failure mode and effects analysis (FMEA; often written with "failure modes" in plural) is the process of reviewing as many components, assemblies, and subsystems as possible to identify potential failure modes in a system and their causes and effects. For each component, the failure modes and their resulting effects on the rest of the system ...
A particular matter in Revision B, which was the topic of a Notice of Proposed Rulemaking [28] completed in June 2024, [29] is the failure condition designated as Catastrophic Single Latent Failure Plus One (CSL+1).
The difference between active failure and latent failure is that the effect caused by active failure will show up immediately. Latent failure usually occurs from the high level management. Investigators may ignore this kind of failure because it may remain undetected for a long time. [10] During the investigation of latent failure ...
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