This is more then just cleaning a trail. These AAT meeting talk about a lot of things that are going on in the forest.
There is a lot of opportunity there from ham radio classes, AAT BBQ's and special events, dozer operator training, and much more.
They also share lots of information regarding closed trails, whats opening, as well as insight on lesser known places to check out.
I highly recommend going to these meetings for those that can make it.
I know SCCX has a plaque, but looking at the forum here, there hasn't been any AAT runs in over a year. Even something simple like planning an AAT specific run to run the trail and check it out would be a good thing to do. But ultimately there should be someone to head up the AAT effort as the main contact by the forest service.
If someone doesn't take on this role, then the AAT trail should probably be turned back to the forest service for someone else to take care of.