One way I've found to remove them is to uninstall GSX.
That wouldn't make any sense, since you'll lose the whole GSX. You can disable GSX at this specific airport, or you can set the passenger number to 0. We'll obviously check this, because it's not supposed to happen but please, not my last question:
Then report back if it happens on another airport and, most importantly, clearly indicate which kind of jetways ( standard, SODE or GSX/SODE ) that airport has.
