These accidents still happen, even in this day and age.

There’s video evidence of the USN guy going up the intake of an A-6 intruder, (Luckily he survived by wedging himself in the intake).

There was also an incident at a Scotish Maritime Base when a groundcrew member entered the intake danger zone, during a ground run, and paid the ultimate price. I know as I was working at that airfield when it happened.