In reply to Tim Chappell:
> (In reply to Mick Ryan - UKClimbing.com)
> But what's this stuff about 'contamination'? Does that just mean no one tampered with Skinner's harness, e.g. by pouring acid over it?
No.
There was some speculation that the harness may have been contaminated accidently, for example by storing it in the back of a truck or in the boot of a car.
Further speculation:
"Skinner’s partner reiterated in interviews with rangers that he observed the loop “had been about 20 percent worn through three days prior,” to the accident. Faherty wrote that he, too,
“also observed that the harness was extremely frayed and worn where the belay loop should run through the ‘swami belt’ and the leg loops.”
“The belay loop appeared worn near where it was torn,” Faherty wrote. “The actual torn section appeared frayed. I could see no fusing of Nylon fibers suggestive of a shock load...”
Faherty also found
a sling girth-hitched to the broken belay loop, which Hewitt believed had been in place for some time and prevented the belay loop from rotating and absorbing wear evenly. “Also broken was the keeper strap on the leg loops,” ranger Faherty wrote. Loss of the keeper strap would free the leg loops to saw against belay loop, often in the same spot, given Skinner’s harness set-up.
Those observations support climber Will Gadd’s theory, published in a recent issue of Outside magazine, that the sawing leg loops contributed to the belay loop’s failure."