Can I revive my mother's orchid?

My mom's favorite flower is the orchid and she had this one for a few years but the past year it started to degrade and she's trying to make an effort to save it. We tried doing some research and it's clear we have root rot. The thing that confuses me is when I look up anything it said the crown is near the soil as are most of the are roots, but this one has a large bunch of air roots a bit aways from the rot.

Is there any advice anyone could give to possibly help revive this plant? Would i be able to cut where the air roots are and start a new plant off of them? I think the root rot is too far gone. I'm going to try to clean all the soil put of it now and see how bad it really is