What happened
During a night-time captain proficiency check, the pilot in command was conducting a training evolution for another company pilot. After completing a full-stop landing on runway 25, the crew performed the takeoff checklist and subsequently began a departure from runway 07. During the initial climb phase, the trainee pilot simulated an engine failure at V1 speed.
Following this simulated event, the aircraft was unable to maintain directional control or accelerate to the required V2 speed. As the airspeed decreased, the aircraft leveled off and drifted toward the right side of the runway. The check pilot did not intervene to take control of the aircraft or end the engine failure simulation as the situation worsened. During the descent, the aircraft struck an ILS glideslope tower that was marked with red obstruction lights. The impact caused the separation of the right wingtip and aileron, leading to a total loss of control. The aircraft subsequently impacted the ground and slid to a halt.
Findings
Investigations into the accident revealed several contributing factors related to cockpit management and configuration. It was determined that the flaps were not set to the required 1/4 position for takeoff; instead, both flaps were found in approximately the 1/2 position, with the handle located in the 1/2 flap detent.
Official findings identified several errors by the pilot in command, including inadequate preflight planning and preparation, as well as inattentive checklist usage. The check pilot was also cited for inadequate supervision and for failing to terminate the simulated emergency procedure. These factors, combined with the incorrect flap setting, prevented the aircraft from achieving the necessary climb performance and directional stability required to safely manage the simulated engine loss.