Taxi and Pre-Takeoff
During taxi to the runway, the certified flight instructor (CFI) observed a "skip" in the engine. During the pre-takeoff run-up, the left magneto was noted to be running "rough." The CFI increased engine power to 2,000 RPM and leaned the mixture until the roughness ceased. The airplane then taxied to the runway for departure.
Takeoff and Abort
During the initial climb after takeoff, at an altitude estimated between 100 and 200 feet above ground level, the engine skip recurred. With approximately one-third of the runway remaining, the CFI decided to abort the takeoff and initiated a steep descent toward the runway.
Impact and Final Position
The airplane contacted the runway with the nose wheel, resulting in a bounce that carried it back into the air. It subsequently departed the end of the runway. A second touchdown occurred on the nose wheel in a grassy area, after which the airplane flipped over and came to rest inverted.
Post-Accident Examination
A Federal Aviation Administration inspector examined the airplane following the accident and found no discrepancies with the engine or ignition system.