Dino Moline is an aerobatic pilot whose left wing snapped off from negative g-load during a pushover maneuver at an airshow in El Trebol, Argentina. His Rans S-9 (video incorrectly identifies it as an S-7) was equipped with a Ballistic Recovery Systems whole-plane parachute. The parachute deployed via a solid-fuel rocket, and gently lowered the plane to the ground. A bit of a fire after landing, but Dino walked away.
Wing snaps off at 2:20. However, 2:00 is a good place to start so you can see the maneuvers that likely stressed the left wing.
Previously: Bird strike through Cessna windshield, Short takeoff/landing records