Incident Overview
The pilot of an airplane reported that during landing, the aircraft touched down hard and began to porpoise. The porpoising motion caused the airplane to strike the runway twice during the accident sequence. The pilot noted a loss of nose wheel and rudder control responsiveness, making it difficult to maintain directional control.
Sequence of Events
After the loss of control, the airplane departed the runway to the right. It then traveled down an embankment and subsequently rolled over, coming to rest in an inverted position. The aircraft sustained substantial damage to the right wing, vertical stabilizer, and fuselage.
Pilot Report
The pilot stated that there were no preimpact mechanical failures or malfunctions that would have precluded normal operation of the airplane. No other factors were mentioned in the report.
Damage Assessment
The damage was described as substantial, specifically affecting the right wing, vertical stabilizer, and fuselage structure. The extent of damage is consistent with the forces experienced during the hard landing and subsequent rollover.