I confess that I didn’t see the tiny bit of gantry above the TIE in that shot at first.
The only onscreen evidence of how TIE’s are parked pre-SE is in ROTJ.
Jedi Outcast had a Star Destroyer level with a hangar bay full of TIE’s hanging around this way.
I never noticed the TIE hanging from some sort of maintenance gantry in this shot before!