This March 2007 accident report is provided by the National Transportation Safety Board. Published as an educational tool, it is intended to help pilots learn from the misfortunes of others.
Aircraft: Flight Design CT.
Injuries: 2 Minor.
Aircraft damage: Substantial.
What reportedly happened: The company’s chief pilot and pilot receiving instruction had performed four successful touch-and-goes. On the fifth landing, the pilot receiving instruction started the flare about 3 feet above the runway. As the airplane settled, the chief pilot raised the nose of the airplane slightly to prevent a bounced landing. The airplane ballooned. The pilots elected to perform a go-around.
The chief pilot advanced the power but the airplane settled back onto the runway in a slight left crab, first touching down on the left main landing gear. The gear collapsed. The airplane slid for 300 feet, went off the side of the pavement and flipped over on to its back.
The post-accident examination determined that the left main lower landing gear tube had fractured due to overstress at the wheel and brake attachment fitting.
Probable cause: The total failure of the left main landing gear strut due to overload during the landing, resulting in the loss of control and subsequent nose over.
For more information: NTSB.gov/ntsb/brief.asp?ev_id=20070313X00279&key=1.