Hi,
A number of years ago I flew from California to attend the World Freefall Convention in Quincy, Illinois. I took my entire parachute rig as my carry-on. Nobody said a thing, except to express curiosity. Yes, this was before 9/11. Somehow I doubt I'd be able to do that again.
Then just a few years ago my backpack set off alarms and a swab detected gun powder. I guess it came in contact with my range bag. Thankfully there were no other issues. Those TSA folks sure get excited when they find something. It must be a boring and thankless job most of the time.
Thank you for your indulgence,
BassCliff