History of Flight
On 29 March 2019, an instructor and a student pilot departed Rand Aerodrome (FAGM) for Syferfontein Aerodrome (FASY) to practice asymmetric circuits. After arrival, the instructor demonstrated the first asymmetric circuit on Runway 31 with a simulated right-engine failure. The student then took control for a second circuit. On downwind, the instructor simulated a left-engine failure. The student configured the aircraft for single-engine operation. On final approach at 300 feet AGL, the instructor restored power to the left engine, and the student landed successfully.
After touchdown, the student applied full power to both engines for takeoff. During rotation at about 80 knots, the aircraft banked sharply to the right. The instructor took control and attempted to feather the right engine, but it did not respond. The aircraft lost height, the right wing struck the ground, and the aircraft ground-looped and skidded to a stop 120 meters from Runway 14, facing opposite its takeoff direction.
Injuries and Damage
Both crew members sustained minor injuries. The aircraft was destroyed.
Investigation Findings
The investigation determined that an incorrect throttle control cable end fitting had been installed on the right engine. This fitting separated on the third circuit when the student pilot applied full power, preventing the engine from developing climb power and causing the right roll.