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The Bend is Uninteresting...The Related Decisions Are Much More So

It was 04:00 and I woke up with a dull pain in my left forearm and pins and needles in my left hand. Bugger! The Dives That day I had completed two dives, the first to max depth 44m with an average depth of 38m for 27 mins and completed 31 mins of deco using 50%. The second was to a max of 26m,...

When the holes line up...

Many of my readers will have heard about me talk about Professor James Reason's Swiss Cheese Model and how it can be used to show how incident develop because of holes in the barriers and defences which are put in place to maximise safety. Professor Reason's research showed that at different lev...

“The standard you walk past is the standard you accept”

A few days ago a post was made on Facebook outlining the process by which a PADI student or professional could raise a QA claim against a professional or facility. One of the comments written below was 'Snitch!' This frustrated me because my perception based on 26 years in the RAF is that if stan...

Sticky: Published articles...

This is a list of articles published in magzines, journals or conference proceedings...the link may take you off the Human Factors Academy website.  The Diver Medic Issue #9 (Nov 16), page 38 - Today is a good day to die. An article highlighting that we need to understand local rationality if ...

We cannot improve if we don't learn. We can't learn if we don't understand.

"The divers were instructed by the DM to swim away from shore and then they were taken away down current and then spent the next 7 hours fighting for their survival in Xm high waves before being picked up some nine miles away..." "How stupid could they be? It is obvious that they shoul...

What does Human Factors in Diving mean?

Human factors can be a bit confusing to many people, and there is a really good reason for that. Read on and find out why.  "Ergonomics (or human factors) is the scientific discipline concerned with the understanding of interactions among humans and other elements of a system, and the profession...

Why ‘Human Error’ is a poor term if we are to improve diving safety

This blog was originally submitted as an article for the NAUI ICUE Journal following my presentation at the Long Beach show in 2017. The aim of this manuscript is to enable the reader to recognise that often when we read accident and incident reports the cause of outcome is reported as ‘human er...

Stop making stupid mistakes. If only they’d follow the rules...

In 2012, two divers entered the water for a check-out and set-up dive in 115ft (35m) of water dive on their rebreathers. 27 mins later, one of them was on the surface having been rescued by their inexperienced closed circuit rebreather (CCR) buddy having suffered an oxygen toxicity seizure. The v...

Nine ways to stop your dive team improving...

Where there are accidents, incidents or near misses, there are parts of your behaviour, your team's behaviour, your centre's behaviour or your agency's behaviour that you don't want other people to see. It is only natural. We are hard-wired that way. Divers make mistakes they don’t talk about, e...

Human Error in Diving: Is it really that simple?

It is easy to ascribe ‘human error’ to diving incidents because we often lack details about what happened. It is also perversely satisfying to blame someone, an individual, rather than attribute it to a system issue. Part of this is because we can then start internalising this, distancing ourselv...