What happened
The incident occurred during a flight training session focused on emergency procedures. The certified flight instructor (CFI) initiated a simulated engine failure by shutting down one engine while the aircraft was in the takeoff phase. This maneuver was designed to test the pilot taking instruction's ability to handle asymmetric thrust.
As the aborted takeoff commenced, the student pilot applied incorrect rudder action to counteract the yaw. Simultaneously, full power was maintained on the operating right engine. The resulting aerodynamic forces caused the aircraft to swerve sharply to the left. Despite the CFI's attempts to regain control, they were unable to correct the trajectory before the aircraft impacted a dirt embankment.
The investigation
The physical examination of the wreckage confirmed that the aircraft had departed from the intended flight path during the takeoff roll. The impact point was consistent with an uncontrolled leftward deviation. No mechanical failures unrelated to the simulated procedure were identified prior to the swerve.
Findings
The primary factor in this accident was the improper control input by the pilot taking instruction. Specifically, the application of incorrect rudder action during the aborted takeoff prevented the aircraft from maintaining directional control. The combination of full power on the operating engine and inadequate rudder correction led to an uncontrollable swerve.
Safety message
Proper coordination of flight controls is critical during asymmetric thrust scenarios. Pilots must ensure that rudder input matches the direction opposite to the failed engine's yaw to maintain directional control during takeoff aborts.