Originally Posted by
hummingbear
Yes, they can get weight restricted. It’s not necessarily a very frequent thing, but certainly not unheard of. I haven’t seen any company communications about recurring issues with it lately. Good luck & enjoy the diving.
The OP said jumpseat, not passride, so cockpit OMC is included in the aircraft BOW. Now, the etiquette of showing up on the FD with a boatload if scuba gear is a different story but most crews would do their best to accommodate.