Lock wheels and casters on all equipment. (maintenance stands, heaters, power units, toolboxes, creepers, etc.)
Add edge protection on edges and corners of ALL equipment possible. (Wherever it’s possible to add edge protection without impacting the function of that equipment.
Emphasize situational awareness to new employees, remind everyone regularly. “Eyes up in the hangar!”
Use checklists for aircraft intake and shutdown; as well as aircraft release and startup.
Consider towing equipment - A remote tug that stops instantly is safer than a tractor that takes a foot or two to stop.
Consider lower profile equipment when possible. A toolbox, tug or APU that can travel safely under wings and other surfaces will reduce the likelihood of some incidents.
Assign wingwalkers whenever an aircraft is being moved or repositioned inside a hangar, or outdoors in close proximity to other aircraft and equipment.