What happened
The pilot was conducting an approach to landing when he observed that the aircraft was positioned below the desired glide path. In an attempt to correct the descent rate and maintain altitude, the pilot applied additional engine power. Despite this adjustment, the aircraft touched down approximately 15 feet short of the runway threshold.
Upon impact with the ground before reaching the paved surface, the nose landing gear collapsed under the stress of the hard touchdown. The aircraft continued its forward momentum along the ground for an additional distance of roughly 300 feet. During this rollout, the airplane encountered a gravel area adjacent to the runway environment. This interaction with the uneven terrain caused the aircraft to flip over completely.
The accident concluded with the airplane coming to rest in an inverted position on its back. No further details regarding injuries or specific weather conditions were provided in the source narrative.