The pilot reported that while performing a touch-and-go landing, he touched down with a "slight bounce." He reported that he applied power, but the rudder and aileron would not keep the airplane from "going left." The airplane departed the runway to the left, impacted a taxi sign, the left main landing gear and the nose landing gear collapsed, and came to a stop on a ramp. The airplane sustained substantial damage to the fuselage and empennage.
The pilot reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.