What happened
The incident occurred while the aircraft was returning from a routine practice session. During the flight, the certified flight instructor (CFI) initiated a procedure simulating an engine failure. As the airplane maneuvered into a close left base leg for landing, it encountered a severe sink rate.
Despite efforts to manage the descent, the CFI was unable to arrest the sink rate. Consequently, the aircraft impacted the ground short of the runway threshold. Upon impact, the airplane slid onto the runway surface while turning to the right. This sequence of events resulted in the loss of the right wing and the nose landing gear.
The investigation
The physical examination of the wreckage revealed substantial structural damage consistent with a high-energy impact. Specifically, the airframe sustained significant deformation including the detachment or severe bending of the right wing structure and failure of the nose gear assembly. The flight data indicates that the loss of control was directly linked to the inability to recover from the low-altitude sink rate during the simulated emergency.
Findings
The primary factor in this accident was the aircraft's impact with the ground short of the runway due to an unrecovered severe sink rate. The flight phase involved a simulated engine failure, which placed specific demands on the pilot's energy management and altitude awareness. The proximity of the maneuver, described as a close base leg, likely contributed to the insufficient altitude available for recovery.
Safety message
This accident highlights the critical importance of altitude management during low-level training maneuvers. Pilots must ensure adequate altitude is maintained when practicing emergency procedures, particularly those involving power-off landings or simulated engine failures, to allow sufficient time and space for recovery from unexpected sink rates.