Incident Overview
A pilot was conducting night takeoffs and landings to meet currency requirements for night operations. The flight involved departing Runway 13 and landing on Runway 31. After completing a landing on Runway 31 and rolling to the end, the pilot initiated another departure from Runway 13.
Sequence of Events
During the subsequent takeoff roll, the pilot inadvertently left the mixture control in a lean position instead of the required rich setting. As the airplane accelerated down the runway, it reached approximately two-thirds of the runway length but failed to achieve sufficient airspeed to become airborne. Recognizing the inability to lift off, the pilot aborted the takeoff. However, the remaining runway length was inadequate to bring the airplane to a stop before reaching the departure end.
Outcome
The airplane overran the departure end of the runway and entered an area of soft and rough terrain. The aircraft subsequently nosed over onto its back. The extent of damage to the airplane was not specified in the source.
Additional Details
No further information regarding the aircraft type, registration, number of occupants, injuries, or environmental conditions such as time of night or weather was provided in the source. The incident occurred during the pilot's efforts to regain night currency.