The teardown and inspection of an electric motor is trivial compared to that of an internal combustion engine. Generally speaking, you'd undo a few fasteners,

The teardown and inspection of an electric motor is trivial compared to that of an internal combustion engine. Generally speaking, you'd undo a few fasteners, pop off a cover, and check/clean the rotor/windings. 15 minutes tops - heck, you could do it before every flight and it'd still be cheaper than paying for the 100-hour maintenance on a GA plane.