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INADEQUATE
DEFENCES
Actives &
Latent failures
UNSAFE ACTS
Actives failures
PSYCHOLOGICAL
PRECURSORS
OF UNSAFE ACTS
Latent failures
LINE
MANAGEMENT
DEFICIENCIES
Latent failures
LIMITED
WINDOW OF
ACCIDENT
OPPORTUNITY
ACCIDENT
INTERACTIONS
WITH LOCAL EVENTS
Contribution of human
errors to the genesis of
accidents
Pathogens or
Latent conditions
FALLIBLE
DECISIONS
Latent failures