Not a skid steer, but I had a close call today with a developmental light weight crane. We have a radar that sits about 12’ off the ground in the nose of an acft. It weighs about 150lbs and costs about $1M. After testing the hoist for usability by removing and installing the radar twice, it needed to be pushed back to the hangar. Myself and the program loggie walked along as the engineers that designed it pushed it. About half way to the hangar, the hook fell off. I picked up the pieces and realized the nylock that they used to secure the hook shank was too tall and the nylon had never engaged the threads. We were a thread or two from seriously hurting a couple of people and doing >$1M in damage to the radar and acft. Anyhow, redesign includes a castellated nut and cotter pin, and an additional pre-use inspection point was added.
/bullet dodged.