unhappy endings

[DRE]

I quickly browsed through some of the accident reports adn the first thing that I realized was that Sheck was on the money again. For those of you who don't know: Sheck Exley was one of the most famous cave divers ever. He died attempting to set a world record dive to a 1000ft. Anyone ever taking cave training has to read a small booklet by him, called Blueprint for Survival. In this book he analyzes what went wrong in a number of cave diving deaths, and he came up with a set of rules cave divers have to abide by in order to make it out alive. Since cave divers started implementing these rules only one death has occured in which a diver did everything correct and still died, due to a collapse.
Sheck identified five major areas: 1) continuous guideline to the surface (running reels), 2) gas supply planning (rule of thirds), 3) diving too deep (or using an inappropriate breathing mixture), 4) inadequate equipment (three lights for overhead environment, redundant gas supply,...), 5) inadequate training (such as OW divers going inside a wreck without proper training).
In all of the reports I read on that site, divers did break multiple rules, and unfortunately the wreck diving community has not come up yet with accident analysis to improve diver safety such as has been done by the cave community.