Incident Overview
A certificated flight instructor (CFI) and a student pilot were conducting a local training flight. During the takeoff roll, the airplane began to drift to the right. The CFI applied full left rudder and left aileron but was unable to correct the drift. After rotating, the CFI heard the gear warning horn.
Post-Takeoff Observations
Once airborne, another aircraft advised the CFI that the right landing gear was not visible. Additionally, an FBO operator reported that the right gear was missing. Concerned about a possible fuel leak, the CFI declared an emergency and landed the airplane.
Runway and Gear Examination
An inspection of the runway revealed a tire track that departed the right side of the runway 1,050 feet from the approach end, continuing into the grass toward an electrical service box on the right side of the runway. Cracks and gouges were found on the cement electrical service box, and the right main gear assembly was located on the ground beyond it. The fractured portion of the upper torque link exhibited characteristics consistent with an overstress separation.
Weather and Other Factors
Both the CFI and ground witnesses stated that weather was not a factor in the event.