What happened
The accident occurred during the landing phase of flight. The pilot attempted to land the aircraft but maintained excessive airspeed throughout the approach. As a result, the aircraft floated significantly down the runway instead of making firm contact at the intended touchdown point.
Attempting to correct the situation, the pilot continued to flare the aircraft. However, as the airspeed decreased during this prolonged flare, the wings stalled. This stall resulted in a hard landing impact. Following the initial impact, the aircraft began to porpoise along the runway surface. On the third cycle of this porpoising motion, the nose gear collapsed under the stress.
After the structural failure of the landing gear, the aircraft slid off the runway and eventually came to rest. The sequence of events was driven by the initial excessive approach speed which led to floating, followed by a stall during the flare maneuver.