*Update* Everyone is ok. Just seems like a freak incident that beats the odds. Read below for news links. Wheel falls off of a A&M 152 and free falls onto a Cirrus. That's the current story. Really? Can't wait for the AOPA Pilot Story on this. Heard from my controller friend there was a midair at College Station, TX this morning. Don't know anything more than that. I'm based out of Hooks(KDWH), as I find out more I will update. Fly safe guys. Spoke to our maintenance this morning on how it could happen. Pulled up the 152 schematics. Even if the castle nut lost its safety pin, and wiggles off, you still have two bolts holding the caliper, which holds the disc brake. Only thing they could come up with is the single bolt which holds the strut came loose, and the "bonding" of the strut broke free and the entire assembly tumbled out. This is provided that the aluminum brake line snaps off as well. A lot of what if's. I feel bad for the last mechanic to touch the plane. They are not going to have a fun weekend. I am glad everyone is ok. Had all of us down at Hooks all worried. Off to do the BC 16 at CLL and VOR at Brenham and grab a shake for lunch. Yum. CJ.