Someone at the DZ had an odd little snag issue yesterday. It's not about a big snag point, but is an example of how little things (including design issues) can cause problems in unexpected ways -- Murphy's Law type stuff.
So Kyle was climbing out 2nd from the 182 for an RW jump. He presumably tilted his head to the left as he ducked out the door. He gets out on the step, and finds that he can't straighten his head up; his head is somehow stuck to his rig at the shoulder.
Shannon behind him sees what's happening and decides to pull Kyle back inside to sort things out, while the outside hang jumper decides to drop off. Shannon and Kyle get back inside OK, sort things out, and jump after a go around.
I didn't look closely at the helmet but at the Rawa's left side chin strap ratcheting attachment buckle, there's a bit of stiff steel wire that sticks out just a few millimetres on the bottom of the ratchet mechanism, forming a small hook facing I think towards the jumper's chin. There's nothing to protect the end of the wire. I think it is strong spring steel, part of the spring loaded function of the ratchet mechanism. (I don't know the age of the helmet, or if anything is different on older or newer ones.)
As the jumper climbed out, that wire at the bottom of the ratchet hooked right into the fabric of the riser cover. The steel wire being quite stiff wasn't about to let go easily if the jumper tried to pull his head away from his shoulder straps, which would be anyone's natural inclination. The incident could also have happened at some other time, in freefall or under canopy.
Granted, some head shaking in different directions, despite not knowing what the hell was going on, would likely have found the right direction to unhook the wire.
Still, the RW group could well have jumped, with one guy not too happy about having his head pinned sideways to his rig!
It's a small snag point on the helmet but it's still a snag point.