Casual day fishing in a OH58, on approach to confined area just below the tree line at 40% TQ, go to pull in more pitch to find a spot to land on the rocks and collective jammed, there's a bit of flex in those collective levers, wasn't until I lowered the lever and pulled it up again that it came free and resumed a normal landing with the exception of a higher than normal heart rate.
Military seat belt anchor jammed between the knurled nut on the copilot collective and the seat back.
One of those things to make you feel like an idiot and realize the elements when you think you're on top of things.
Make sure your pax lap belt is tight when you've got the duals in a kiowa with military seat belts.
BF