Originally Posted by Ace:
I am surprised at what look like fabric straps??? to lift a locomotive? And from what I am seeing, it appears that one of the straps gave way. Certainly a serious screw-up by the riggers
Not fabric, NYLON. Wide Nylon straps like that are routinely used in this kind of heavy lifting service. When the riggers lifted the 765 off her wheels several years ago during the overhaul, they used four, 10" wide Nylon straps, one on each corner. The 765's boiler weighed about 150 tons. That diesel is probably in the neighborhood of 200 to 220 tons (400,000 to 440,000 pounds.)
Nylon is subject to cutting and wear. The strap in this case may have had a small nick or cut in it that cut a few of the fibers. That defect was not noticed in the pre-lift inspection. It supported the weight...for a while.