We got a PA-28R-180 in for an annual inspection, a few days ago. I was picked to inspect the engine and firewall forward, a couple other guys were on the airframe. When I got to the motor mount, it was broken in two just below the upper right mount and then checked the other side and it was broken in two below the upper left mount, so I could pick up on the engine and see the mount separate. The left brake had rust visible inside the tube. When we got the engine off, the cross tube under the accessory case was cracked 3/4 way around. The spar attach areas looked good, but this plane was real, real close to having the engine depart its mount. It had been inspected by the same mechanic for the past 4 or 5 years. That was a close call.