Accident Overview
While taxiing to the runway, the right main and nose landing gear of the aircraft departed the paved surface of the taxiway. The pilot attempted to correct the situation by adding power to the right engine and applying left brake pressure. However, according to the pilot, the application of power resulted in an increase in ground speed rather than the desired corrective action. The aircraft continued to move off the taxiway and subsequently collided with a ditch.
Investigation Findings
No mechanical failures or malfunctions were reported in the aircraft's systems. The condition of the taxiway was noted to be poor at the time of the incident. The investigation did not identify any other contributing factors.
Pilot Actions
The pilot's response to the gear excursion involved asymmetrical power application and braking. The pilot reported that the aircraft's ground speed rose when power was added, which complicated the recovery effort.
Conclusion
The incident occurred during taxi, with the aircraft exiting the taxiway and striking a ditch. The taxiway's poor condition was documented, and the absence of mechanical issues was confirmed.