Accident Description
A pilot was conducting a soft-field takeoff procedure in a light airplane. He initiated the takeoff roll with full engine power, full up elevator deflection, and one notch of wing flaps. The airplane initially accelerated down the center of the runway but began to pitch upward and simultaneously turn to the left. The pilot attempted to counteract the left turn by applying right rudder, but the airplane continued diverging toward the left side of the runway.
In a further effort to regain control, the pilot lowered the nose and reduced engine power. Despite these actions, the airplane veered off the left side of the runway, struck precision approach path indicator (PAPI) lights, and subsequently nosed over. The accident sequence ended with the airplane coming to rest in an inverted position.
Damage
The airplane sustained substantial damage. Specific structural damage included deformation of the wing struts and crushing of the wing leading edges. These deformations indicate significant impact forces during the ground excursion and nose-over event.
Postaccident Examination
A postaccident examination of the airplane was conducted. The examination revealed no pre-impact anomalies. All recovered components and systems were found to be in a condition consistent with normal operation prior to the loss of control. There was no evidence of mechanical failure or malfunction that would have contributed to the accident.
Pilot Actions
The pilot reported that the accident occurred while practicing a soft-field takeoff technique. According to his account, the takeoff roll began normally, but as the airplane pitched up, it veered left despite his corrective inputs. The decision to lower the nose and reduce power was made in an attempt to recover directional control, but the airplane continued off the runway.
Conclusion
The accident resulted from a loss of directional control during a soft-field takeoff practice, leading to a runway excursion and collision with PAPI lights, followed by a nose-over. No mechanical issues were identified that could explain the loss of control.