Latest / Counter-Errorism in Diving: Applying Human Factors to Diving
SH288: The 'Obvious Thing' Nobody Noticed
This episode explores the fatal case of 18-year-old Linnea Mills to show how visible hazards can go unnoticed when an instructor lacks the mental capacity to recognise them. Linnea was overweighted, unable to inflate her drysuit, and using equipment that couldn’t provide enough lift—risks that seem obvious in hindsight but were missed due to a combination of inexperience, time pressure, unfamiliar gear, and commercial expectations. Using models like ECOM and COCOM, the episode explains how an instructor’s attention can be consumed by immediate tasks, leaving no capacity to monitor the bigger…
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